. If we allow subsequent keypresses to insert characters\n // natively, they will be inserted into a browser-created text node to the\n // right of that
. This is obviously undesirable.\n //\n // With the `needsRecovery` flag, we inform the caller that it is responsible\n // for manually setting the selection state on the rendered document to\n // ensure proper selection state maintenance.\n\n if (anchorIsTextNode) {\n anchorPoint = {\n key: nullthrows(findAncestorOffsetKey(anchorNode)),\n offset: anchorOffset\n };\n focusPoint = getPointForNonTextNode(root, focusNode, focusOffset);\n } else if (focusIsTextNode) {\n focusPoint = {\n key: nullthrows(findAncestorOffsetKey(focusNode)),\n offset: focusOffset\n };\n anchorPoint = getPointForNonTextNode(root, anchorNode, anchorOffset);\n } else {\n anchorPoint = getPointForNonTextNode(root, anchorNode, anchorOffset);\n focusPoint = getPointForNonTextNode(root, focusNode, focusOffset); // If the selection is collapsed on an empty block, don't force recovery.\n // This way, on arrow key selection changes, the browser can move the\n // cursor from a non-zero offset on one block, through empty blocks,\n // to a matching non-zero offset on other text blocks.\n\n if (anchorNode === focusNode && anchorOffset === focusOffset) {\n needsRecovery = !!anchorNode.firstChild && anchorNode.firstChild.nodeName !== 'BR';\n }\n }\n\n return {\n selectionState: getUpdatedSelectionState(editorState, anchorPoint.key, anchorPoint.offset, focusPoint.key, focusPoint.offset),\n needsRecovery: needsRecovery\n };\n}\n/**\n * Identify the first leaf descendant for the given node.\n */\n\n\nfunction getFirstLeaf(node) {\n while (node.firstChild && ( // data-blocks has no offset\n isElement(node.firstChild) && node.firstChild.getAttribute('data-blocks') === 'true' || getSelectionOffsetKeyForNode(node.firstChild))) {\n node = node.firstChild;\n }\n\n return node;\n}\n/**\n * Identify the last leaf descendant for the given node.\n */\n\n\nfunction getLastLeaf(node) {\n while (node.lastChild && ( // data-blocks has no offset\n isElement(node.lastChild) && node.lastChild.getAttribute('data-blocks') === 'true' || getSelectionOffsetKeyForNode(node.lastChild))) {\n node = node.lastChild;\n }\n\n return node;\n}\n\nfunction getPointForNonTextNode(editorRoot, startNode, childOffset) {\n var node = startNode;\n var offsetKey = findAncestorOffsetKey(node);\n !(offsetKey != null || editorRoot && (editorRoot === node || editorRoot.firstChild === node)) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Unknown node in selection range.') : invariant(false) : void 0; // If the editorRoot is the selection, step downward into the content\n // wrapper.\n\n if (editorRoot === node) {\n node = node.firstChild;\n !isElement(node) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Invalid DraftEditorContents node.') : invariant(false) : void 0;\n var castedNode = node; // assignment only added for flow :/\n // otherwise it throws in line 200 saying that node can be null or undefined\n\n node = castedNode;\n !(node.getAttribute('data-contents') === 'true') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Invalid DraftEditorContents structure.') : invariant(false) : void 0;\n\n if (childOffset > 0) {\n childOffset = node.childNodes.length;\n }\n } // If the child offset is zero and we have an offset key, we're done.\n // If there's no offset key because the entire editor is selected,\n // find the leftmost (\"first\") leaf in the tree and use that as the offset\n // key.\n\n\n if (childOffset === 0) {\n var key = null;\n\n if (offsetKey != null) {\n key = offsetKey;\n } else {\n var firstLeaf = getFirstLeaf(node);\n key = nullthrows(getSelectionOffsetKeyForNode(firstLeaf));\n }\n\n return {\n key: key,\n offset: 0\n };\n }\n\n var nodeBeforeCursor = node.childNodes[childOffset - 1];\n var leafKey = null;\n var textLength = null;\n\n if (!getSelectionOffsetKeyForNode(nodeBeforeCursor)) {\n // Our target node may be a leaf or a text node, in which case we're\n // already where we want to be and can just use the child's length as\n // our offset.\n leafKey = nullthrows(offsetKey);\n textLength = getTextContentLength(nodeBeforeCursor);\n } else {\n // Otherwise, we'll look at the child to the left of the cursor and find\n // the last leaf node in its subtree.\n var lastLeaf = getLastLeaf(nodeBeforeCursor);\n leafKey = nullthrows(getSelectionOffsetKeyForNode(lastLeaf));\n textLength = getTextContentLength(lastLeaf);\n }\n\n return {\n key: leafKey,\n offset: textLength\n };\n}\n/**\n * Return the length of a node's textContent, regarding single newline\n * characters as zero-length. This allows us to avoid problems with identifying\n * the correct selection offset for empty blocks in IE, in which we\n * render newlines instead of break tags.\n */\n\n\nfunction getTextContentLength(node) {\n var textContent = node.textContent;\n return textContent === '\\n' ? 0 : textContent.length;\n}\n\nmodule.exports = getDraftEditorSelectionWithNodes;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar _require = require(\"./draftKeyUtils\"),\n notEmptyKey = _require.notEmptyKey;\n/**\n * Return the entity key that should be used when inserting text for the\n * specified target selection, only if the entity is `MUTABLE`. `IMMUTABLE`\n * and `SEGMENTED` entities should not be used for insertion behavior.\n */\n\n\nfunction getEntityKeyForSelection(contentState, targetSelection) {\n var entityKey;\n\n if (targetSelection.isCollapsed()) {\n var key = targetSelection.getAnchorKey();\n var offset = targetSelection.getAnchorOffset();\n\n if (offset > 0) {\n entityKey = contentState.getBlockForKey(key).getEntityAt(offset - 1);\n\n if (entityKey !== contentState.getBlockForKey(key).getEntityAt(offset)) {\n return null;\n }\n\n return filterKey(contentState.getEntityMap(), entityKey);\n }\n\n return null;\n }\n\n var startKey = targetSelection.getStartKey();\n var startOffset = targetSelection.getStartOffset();\n var startBlock = contentState.getBlockForKey(startKey);\n entityKey = startOffset === startBlock.getLength() ? null : startBlock.getEntityAt(startOffset);\n return filterKey(contentState.getEntityMap(), entityKey);\n}\n/**\n * Determine whether an entity key corresponds to a `MUTABLE` entity. If so,\n * return it. If not, return null.\n */\n\n\nfunction filterKey(entityMap, entityKey) {\n if (notEmptyKey(entityKey)) {\n var entity = entityMap.__get(entityKey);\n\n return entity.getMutability() === 'MUTABLE' ? entityKey : null;\n }\n\n return null;\n}\n\nmodule.exports = getEntityKeyForSelection;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar getContentStateFragment = require(\"./getContentStateFragment\");\n\nfunction getFragmentFromSelection(editorState) {\n var selectionState = editorState.getSelection();\n\n if (selectionState.isCollapsed()) {\n return null;\n }\n\n return getContentStateFragment(editorState.getCurrentContent(), selectionState);\n}\n\nmodule.exports = getFragmentFromSelection;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n *\n * This is unstable and not part of the public API and should not be used by\n * production systems. This file may be update/removed without notice.\n */\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar getNextDelimiterBlockKey = function getNextDelimiterBlockKey(block, blockMap) {\n var isExperimentalTreeBlock = block instanceof ContentBlockNode;\n\n if (!isExperimentalTreeBlock) {\n return null;\n }\n\n var nextSiblingKey = block.getNextSiblingKey();\n\n if (nextSiblingKey) {\n return nextSiblingKey;\n }\n\n var parent = block.getParentKey();\n\n if (!parent) {\n return null;\n }\n\n var nextNonDescendantBlock = blockMap.get(parent);\n\n while (nextNonDescendantBlock && !nextNonDescendantBlock.getNextSiblingKey()) {\n var parentKey = nextNonDescendantBlock.getParentKey();\n nextNonDescendantBlock = parentKey ? blockMap.get(parentKey) : null;\n }\n\n if (!nextNonDescendantBlock) {\n return null;\n }\n\n return nextNonDescendantBlock.getNextSiblingKey();\n};\n\nmodule.exports = getNextDelimiterBlockKey;","\"use strict\";\n\n/**\n * Copyright 2004-present Facebook. All Rights Reserved.\n *\n * \n * @typechecks\n * @format\n */\n\n/**\n * Retrieve an object's own values as an array. If you want the values in the\n * protoype chain, too, use getObjectValuesIncludingPrototype.\n *\n * If you are looking for a function that creates an Array instance based\n * on an \"Array-like\" object, use createArrayFrom instead.\n *\n * @param {object} obj An object.\n * @return {array} The object's values.\n */\nfunction getOwnObjectValues(obj) {\n return Object.keys(obj).map(function (key) {\n return obj[key];\n });\n}\n\nmodule.exports = getOwnObjectValues;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar getRangeClientRects = require(\"./getRangeClientRects\");\n\n/**\n * Like range.getBoundingClientRect() but normalizes for browser bugs.\n */\nfunction getRangeBoundingClientRect(range) {\n // \"Return a DOMRect object describing the smallest rectangle that includes\n // the first rectangle in list and all of the remaining rectangles of which\n // the height or width is not zero.\"\n // http://www.w3.org/TR/cssom-view/#dom-range-getboundingclientrect\n var rects = getRangeClientRects(range);\n var top = 0;\n var right = 0;\n var bottom = 0;\n var left = 0;\n\n if (rects.length) {\n // If the first rectangle has 0 width, we use the second, this is needed\n // because Chrome renders a 0 width rectangle when the selection contains\n // a line break.\n if (rects.length > 1 && rects[0].width === 0) {\n var _rects$ = rects[1];\n top = _rects$.top;\n right = _rects$.right;\n bottom = _rects$.bottom;\n left = _rects$.left;\n } else {\n var _rects$2 = rects[0];\n top = _rects$2.top;\n right = _rects$2.right;\n bottom = _rects$2.bottom;\n left = _rects$2.left;\n }\n\n for (var ii = 1; ii < rects.length; ii++) {\n var rect = rects[ii];\n\n if (rect.height !== 0 && rect.width !== 0) {\n top = Math.min(top, rect.top);\n right = Math.max(right, rect.right);\n bottom = Math.max(bottom, rect.bottom);\n left = Math.min(left, rect.left);\n }\n }\n }\n\n return {\n top: top,\n right: right,\n bottom: bottom,\n left: left,\n width: right - left,\n height: bottom - top\n };\n}\n\nmodule.exports = getRangeBoundingClientRect;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isChrome = UserAgent.isBrowser('Chrome'); // In Chrome, the client rects will include the entire bounds of all nodes that\n// begin (have a start tag) within the selection, even if the selection does\n// not overlap the entire node. To resolve this, we split the range at each\n// start tag and join the client rects together.\n// https://code.google.com/p/chromium/issues/detail?id=324437\n\n/* eslint-disable consistent-return */\n\nfunction getRangeClientRectsChrome(range) {\n var tempRange = range.cloneRange();\n var clientRects = [];\n\n for (var ancestor = range.endContainer; ancestor != null; ancestor = ancestor.parentNode) {\n // If we've climbed up to the common ancestor, we can now use the\n // original start point and stop climbing the tree.\n var atCommonAncestor = ancestor === range.commonAncestorContainer;\n\n if (atCommonAncestor) {\n tempRange.setStart(range.startContainer, range.startOffset);\n } else {\n tempRange.setStart(tempRange.endContainer, 0);\n }\n\n var rects = Array.from(tempRange.getClientRects());\n clientRects.push(rects);\n\n if (atCommonAncestor) {\n var _ref;\n\n clientRects.reverse();\n return (_ref = []).concat.apply(_ref, clientRects);\n }\n\n tempRange.setEndBefore(ancestor);\n }\n\n !false ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Found an unexpected detached subtree when getting range client rects.') : invariant(false) : void 0;\n}\n/* eslint-enable consistent-return */\n\n/**\n * Like range.getClientRects() but normalizes for browser bugs.\n */\n\n\nvar getRangeClientRects = isChrome ? getRangeClientRectsChrome : function (range) {\n return Array.from(range.getClientRects());\n};\nmodule.exports = getRangeClientRects;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar invariant = require(\"fbjs/lib/invariant\");\n/**\n * Obtain the start and end positions of the range that has the\n * specified entity applied to it.\n *\n * Entity keys are applied only to contiguous stretches of text, so this\n * method searches for the first instance of the entity key and returns\n * the subsequent range.\n */\n\n\nfunction getRangesForDraftEntity(block, key) {\n var ranges = [];\n block.findEntityRanges(function (c) {\n return c.getEntity() === key;\n }, function (start, end) {\n ranges.push({\n start: start,\n end: end\n });\n });\n !!!ranges.length ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Entity key not found in this range.') : invariant(false) : void 0;\n return ranges;\n}\n\nmodule.exports = getRangesForDraftEntity;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isOldIE = UserAgent.isBrowser('IE <= 9'); // Provides a dom node that will not execute scripts\n// https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation.createHTMLDocument\n// https://developer.mozilla.org/en-US/Add-ons/Code_snippets/HTML_to_DOM\n\nfunction getSafeBodyFromHTML(html) {\n var doc;\n var root = null; // Provides a safe context\n\n if (!isOldIE && document.implementation && document.implementation.createHTMLDocument) {\n doc = document.implementation.createHTMLDocument('foo');\n !doc.documentElement ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Missing doc.documentElement') : invariant(false) : void 0;\n doc.documentElement.innerHTML = html;\n root = doc.getElementsByTagName('body')[0];\n }\n\n return root;\n}\n\nmodule.exports = getSafeBodyFromHTML;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n/**\n * Get offset key from a node or it's child nodes. Return the first offset key\n * found on the DOM tree of given node.\n */\n\nvar isElement = require(\"./isElement\");\n\nfunction getSelectionOffsetKeyForNode(node) {\n if (isElement(node)) {\n var castedNode = node;\n var offsetKey = castedNode.getAttribute('data-offset-key');\n\n if (offsetKey) {\n return offsetKey;\n }\n\n for (var ii = 0; ii < castedNode.childNodes.length; ii++) {\n var childOffsetKey = getSelectionOffsetKeyForNode(castedNode.childNodes[ii]);\n\n if (childOffsetKey) {\n return childOffsetKey;\n }\n }\n }\n\n return null;\n}\n\nmodule.exports = getSelectionOffsetKeyForNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar TEXT_CLIPPING_REGEX = /\\.textClipping$/;\nvar TEXT_TYPES = {\n 'text/plain': true,\n 'text/html': true,\n 'text/rtf': true\n}; // Somewhat arbitrary upper bound on text size. Let's not lock up the browser.\n\nvar TEXT_SIZE_UPPER_BOUND = 5000;\n/**\n * Extract the text content from a file list.\n */\n\nfunction getTextContentFromFiles(files, callback) {\n var readCount = 0;\n var results = [];\n files.forEach(function (\n /*blob*/\n file) {\n readFile(file, function (\n /*string*/\n text) {\n readCount++;\n text && results.push(text.slice(0, TEXT_SIZE_UPPER_BOUND));\n\n if (readCount == files.length) {\n callback(results.join('\\r'));\n }\n });\n });\n}\n/**\n * todo isaac: Do work to turn html/rtf into a content fragment.\n */\n\n\nfunction readFile(file, callback) {\n if (!global.FileReader || file.type && !(file.type in TEXT_TYPES)) {\n callback('');\n return;\n }\n\n if (file.type === '') {\n var _contents = ''; // Special-case text clippings, which have an empty type but include\n // `.textClipping` in the file name. `readAsText` results in an empty\n // string for text clippings, so we force the file name to serve\n // as the text value for the file.\n\n if (TEXT_CLIPPING_REGEX.test(file.name)) {\n _contents = file.name.replace(TEXT_CLIPPING_REGEX, '');\n }\n\n callback(_contents);\n return;\n }\n\n var reader = new FileReader();\n\n reader.onload = function () {\n var result = reader.result;\n !(typeof result === 'string') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'We should be calling \"FileReader.readAsText\" which returns a string') : invariant(false) : void 0;\n callback(result);\n };\n\n reader.onerror = function () {\n callback('');\n };\n\n reader.readAsText(file);\n}\n\nmodule.exports = getTextContentFromFiles;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftOffsetKey = require(\"./DraftOffsetKey\");\n\nvar nullthrows = require(\"fbjs/lib/nullthrows\");\n\nfunction getUpdatedSelectionState(editorState, anchorKey, anchorOffset, focusKey, focusOffset) {\n var selection = nullthrows(editorState.getSelection());\n\n if (!anchorKey || !focusKey) {\n // If we cannot make sense of the updated selection state, stick to the current one.\n if (process.env.NODE_ENV !== \"production\") {\n /* eslint-disable-next-line */\n console.warn('Invalid selection state.', arguments, editorState.toJS());\n }\n\n return selection;\n }\n\n var anchorPath = DraftOffsetKey.decode(anchorKey);\n var anchorBlockKey = anchorPath.blockKey;\n var anchorLeafBlockTree = editorState.getBlockTree(anchorBlockKey);\n var anchorLeaf = anchorLeafBlockTree && anchorLeafBlockTree.getIn([anchorPath.decoratorKey, 'leaves', anchorPath.leafKey]);\n var focusPath = DraftOffsetKey.decode(focusKey);\n var focusBlockKey = focusPath.blockKey;\n var focusLeafBlockTree = editorState.getBlockTree(focusBlockKey);\n var focusLeaf = focusLeafBlockTree && focusLeafBlockTree.getIn([focusPath.decoratorKey, 'leaves', focusPath.leafKey]);\n\n if (!anchorLeaf || !focusLeaf) {\n // If we cannot make sense of the updated selection state, stick to the current one.\n if (process.env.NODE_ENV !== \"production\") {\n /* eslint-disable-next-line */\n console.warn('Invalid selection state.', arguments, editorState.toJS());\n }\n\n return selection;\n }\n\n var anchorLeafStart = anchorLeaf.get('start');\n var focusLeafStart = focusLeaf.get('start');\n var anchorBlockOffset = anchorLeaf ? anchorLeafStart + anchorOffset : null;\n var focusBlockOffset = focusLeaf ? focusLeafStart + focusOffset : null;\n var areEqual = selection.getAnchorKey() === anchorBlockKey && selection.getAnchorOffset() === anchorBlockOffset && selection.getFocusKey() === focusBlockKey && selection.getFocusOffset() === focusBlockOffset;\n\n if (areEqual) {\n return selection;\n }\n\n var isBackward = false;\n\n if (anchorBlockKey === focusBlockKey) {\n var anchorLeafEnd = anchorLeaf.get('end');\n var focusLeafEnd = focusLeaf.get('end');\n\n if (focusLeafStart === anchorLeafStart && focusLeafEnd === anchorLeafEnd) {\n isBackward = focusOffset < anchorOffset;\n } else {\n isBackward = focusLeafStart < anchorLeafStart;\n }\n } else {\n var startKey = editorState.getCurrentContent().getBlockMap().keySeq().skipUntil(function (v) {\n return v === anchorBlockKey || v === focusBlockKey;\n }).first();\n isBackward = startKey === focusBlockKey;\n }\n\n return selection.merge({\n anchorKey: anchorBlockKey,\n anchorOffset: anchorBlockOffset,\n focusKey: focusBlockKey,\n focusOffset: focusBlockOffset,\n isBackward: isBackward\n });\n}\n\nmodule.exports = getUpdatedSelectionState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar getRangeBoundingClientRect = require(\"./getRangeBoundingClientRect\");\n/**\n * Return the bounding ClientRect for the visible DOM selection, if any.\n * In cases where there are no selected ranges or the bounding rect is\n * temporarily invalid, return null.\n *\n * When using from an iframe, you should pass the iframe window object\n */\n\n\nfunction getVisibleSelectionRect(global) {\n var selection = global.getSelection();\n\n if (!selection.rangeCount) {\n return null;\n }\n\n var range = selection.getRangeAt(0);\n var boundingRect = getRangeBoundingClientRect(range);\n var top = boundingRect.top,\n right = boundingRect.right,\n bottom = boundingRect.bottom,\n left = boundingRect.left; // When a re-render leads to a node being removed, the DOM selection will\n // temporarily be placed on an ancestor node, which leads to an invalid\n // bounding rect. Discard this state.\n\n if (top === 0 && right === 0 && bottom === 0 && left === 0) {\n return null;\n }\n\n return boundingRect;\n}\n\nmodule.exports = getVisibleSelectionRect;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nfunction getWindowForNode(node) {\n if (!node || !node.ownerDocument || !node.ownerDocument.defaultView) {\n return window;\n }\n\n return node.ownerDocument.defaultView;\n}\n\nmodule.exports = getWindowForNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n */\n'use strict';\n\nmodule.exports = function (name) {\n if (typeof window !== 'undefined' && window.__DRAFT_GKX) {\n return !!window.__DRAFT_GKX[name];\n }\n\n return false;\n};","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar BlockMapBuilder = require(\"./BlockMapBuilder\");\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar Immutable = require(\"immutable\");\n\nvar insertIntoList = require(\"./insertIntoList\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar randomizeBlockMapKeys = require(\"./randomizeBlockMapKeys\");\n\nvar List = Immutable.List;\n\nvar updateExistingBlock = function updateExistingBlock(contentState, selectionState, blockMap, fragmentBlock, targetKey, targetOffset) {\n var mergeBlockData = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : 'REPLACE_WITH_NEW_DATA';\n var targetBlock = blockMap.get(targetKey);\n var text = targetBlock.getText();\n var chars = targetBlock.getCharacterList();\n var finalKey = targetKey;\n var finalOffset = targetOffset + fragmentBlock.getText().length;\n var data = null;\n\n switch (mergeBlockData) {\n case 'MERGE_OLD_DATA_TO_NEW_DATA':\n data = fragmentBlock.getData().merge(targetBlock.getData());\n break;\n\n case 'REPLACE_WITH_NEW_DATA':\n data = fragmentBlock.getData();\n break;\n }\n\n var type = targetBlock.getType();\n\n if (text && type === 'unstyled') {\n type = fragmentBlock.getType();\n }\n\n var newBlock = targetBlock.merge({\n text: text.slice(0, targetOffset) + fragmentBlock.getText() + text.slice(targetOffset),\n characterList: insertIntoList(chars, fragmentBlock.getCharacterList(), targetOffset),\n type: type,\n data: data\n });\n return contentState.merge({\n blockMap: blockMap.set(targetKey, newBlock),\n selectionBefore: selectionState,\n selectionAfter: selectionState.merge({\n anchorKey: finalKey,\n anchorOffset: finalOffset,\n focusKey: finalKey,\n focusOffset: finalOffset,\n isBackward: false\n })\n });\n};\n/**\n * Appends text/characterList from the fragment first block to\n * target block.\n */\n\n\nvar updateHead = function updateHead(block, targetOffset, fragment) {\n var text = block.getText();\n var chars = block.getCharacterList(); // Modify head portion of block.\n\n var headText = text.slice(0, targetOffset);\n var headCharacters = chars.slice(0, targetOffset);\n var appendToHead = fragment.first();\n return block.merge({\n text: headText + appendToHead.getText(),\n characterList: headCharacters.concat(appendToHead.getCharacterList()),\n type: headText ? block.getType() : appendToHead.getType(),\n data: appendToHead.getData()\n });\n};\n/**\n * Appends offset text/characterList from the target block to the last\n * fragment block.\n */\n\n\nvar updateTail = function updateTail(block, targetOffset, fragment) {\n // Modify tail portion of block.\n var text = block.getText();\n var chars = block.getCharacterList(); // Modify head portion of block.\n\n var blockSize = text.length;\n var tailText = text.slice(targetOffset, blockSize);\n var tailCharacters = chars.slice(targetOffset, blockSize);\n var prependToTail = fragment.last();\n return prependToTail.merge({\n text: prependToTail.getText() + tailText,\n characterList: prependToTail.getCharacterList().concat(tailCharacters),\n data: prependToTail.getData()\n });\n};\n\nvar getRootBlocks = function getRootBlocks(block, blockMap) {\n var headKey = block.getKey();\n var rootBlock = block;\n var rootBlocks = []; // sometimes the fragment head block will not be part of the blockMap itself this can happen when\n // the fragment head is used to update the target block, however when this does not happen we need\n // to make sure that we include it on the rootBlocks since the first block of a fragment is always a\n // fragment root block\n\n if (blockMap.get(headKey)) {\n rootBlocks.push(headKey);\n }\n\n while (rootBlock && rootBlock.getNextSiblingKey()) {\n var lastSiblingKey = rootBlock.getNextSiblingKey();\n\n if (!lastSiblingKey) {\n break;\n }\n\n rootBlocks.push(lastSiblingKey);\n rootBlock = blockMap.get(lastSiblingKey);\n }\n\n return rootBlocks;\n};\n\nvar updateBlockMapLinks = function updateBlockMapLinks(blockMap, originalBlockMap, targetBlock, fragmentHeadBlock) {\n return blockMap.withMutations(function (blockMapState) {\n var targetKey = targetBlock.getKey();\n var headKey = fragmentHeadBlock.getKey();\n var targetNextKey = targetBlock.getNextSiblingKey();\n var targetParentKey = targetBlock.getParentKey();\n var fragmentRootBlocks = getRootBlocks(fragmentHeadBlock, blockMap);\n var lastRootFragmentBlockKey = fragmentRootBlocks[fragmentRootBlocks.length - 1];\n\n if (blockMapState.get(headKey)) {\n // update the fragment head when it is part of the blockMap otherwise\n blockMapState.setIn([targetKey, 'nextSibling'], headKey);\n blockMapState.setIn([headKey, 'prevSibling'], targetKey);\n } else {\n // update the target block that had the fragment head contents merged into it\n blockMapState.setIn([targetKey, 'nextSibling'], fragmentHeadBlock.getNextSiblingKey());\n blockMapState.setIn([fragmentHeadBlock.getNextSiblingKey(), 'prevSibling'], targetKey);\n } // update the last root block fragment\n\n\n blockMapState.setIn([lastRootFragmentBlockKey, 'nextSibling'], targetNextKey); // update the original target next block\n\n if (targetNextKey) {\n blockMapState.setIn([targetNextKey, 'prevSibling'], lastRootFragmentBlockKey);\n } // update fragment parent links\n\n\n fragmentRootBlocks.forEach(function (blockKey) {\n return blockMapState.setIn([blockKey, 'parent'], targetParentKey);\n }); // update targetBlock parent child links\n\n if (targetParentKey) {\n var targetParent = blockMap.get(targetParentKey);\n var originalTargetParentChildKeys = targetParent.getChildKeys();\n var targetBlockIndex = originalTargetParentChildKeys.indexOf(targetKey);\n var insertionIndex = targetBlockIndex + 1;\n var newChildrenKeysArray = originalTargetParentChildKeys.toArray(); // insert fragment children\n\n newChildrenKeysArray.splice.apply(newChildrenKeysArray, [insertionIndex, 0].concat(fragmentRootBlocks));\n blockMapState.setIn([targetParentKey, 'children'], List(newChildrenKeysArray));\n }\n });\n};\n\nvar insertFragment = function insertFragment(contentState, selectionState, blockMap, fragment, targetKey, targetOffset) {\n var isTreeBasedBlockMap = blockMap.first() instanceof ContentBlockNode;\n var newBlockArr = [];\n var fragmentSize = fragment.size;\n var target = blockMap.get(targetKey);\n var head = fragment.first();\n var tail = fragment.last();\n var finalOffset = tail.getLength();\n var finalKey = tail.getKey();\n var shouldNotUpdateFromFragmentBlock = isTreeBasedBlockMap && (!target.getChildKeys().isEmpty() || !head.getChildKeys().isEmpty());\n blockMap.forEach(function (block, blockKey) {\n if (blockKey !== targetKey) {\n newBlockArr.push(block);\n return;\n }\n\n if (shouldNotUpdateFromFragmentBlock) {\n newBlockArr.push(block);\n } else {\n newBlockArr.push(updateHead(block, targetOffset, fragment));\n } // Insert fragment blocks after the head and before the tail.\n\n\n fragment // when we are updating the target block with the head fragment block we skip the first fragment\n // head since its contents have already been merged with the target block otherwise we include\n // the whole fragment\n .slice(shouldNotUpdateFromFragmentBlock ? 0 : 1, fragmentSize - 1).forEach(function (fragmentBlock) {\n return newBlockArr.push(fragmentBlock);\n }); // update tail\n\n newBlockArr.push(updateTail(block, targetOffset, fragment));\n });\n var updatedBlockMap = BlockMapBuilder.createFromArray(newBlockArr);\n\n if (isTreeBasedBlockMap) {\n updatedBlockMap = updateBlockMapLinks(updatedBlockMap, blockMap, target, head);\n }\n\n return contentState.merge({\n blockMap: updatedBlockMap,\n selectionBefore: selectionState,\n selectionAfter: selectionState.merge({\n anchorKey: finalKey,\n anchorOffset: finalOffset,\n focusKey: finalKey,\n focusOffset: finalOffset,\n isBackward: false\n })\n });\n};\n\nvar insertFragmentIntoContentState = function insertFragmentIntoContentState(contentState, selectionState, fragmentBlockMap) {\n var mergeBlockData = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'REPLACE_WITH_NEW_DATA';\n !selectionState.isCollapsed() ? process.env.NODE_ENV !== \"production\" ? invariant(false, '`insertFragment` should only be called with a collapsed selection state.') : invariant(false) : void 0;\n var blockMap = contentState.getBlockMap();\n var fragment = randomizeBlockMapKeys(fragmentBlockMap);\n var targetKey = selectionState.getStartKey();\n var targetOffset = selectionState.getStartOffset();\n var targetBlock = blockMap.get(targetKey);\n\n if (targetBlock instanceof ContentBlockNode) {\n !targetBlock.getChildKeys().isEmpty() ? process.env.NODE_ENV !== \"production\" ? invariant(false, '`insertFragment` should not be called when a container node is selected.') : invariant(false) : void 0;\n } // When we insert a fragment with a single block we simply update the target block\n // with the contents of the inserted fragment block\n\n\n if (fragment.size === 1) {\n return updateExistingBlock(contentState, selectionState, blockMap, fragment.first(), targetKey, targetOffset, mergeBlockData);\n }\n\n return insertFragment(contentState, selectionState, blockMap, fragment, targetKey, targetOffset);\n};\n\nmodule.exports = insertFragmentIntoContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\n/**\n * Maintain persistence for target list when appending and prepending.\n */\nfunction insertIntoList(targetListArg, toInsert, offset) {\n var targetList = targetListArg;\n\n if (offset === targetList.count()) {\n toInsert.forEach(function (c) {\n targetList = targetList.push(c);\n });\n } else if (offset === 0) {\n toInsert.reverse().forEach(function (c) {\n targetList = targetList.unshift(c);\n });\n } else {\n var head = targetList.slice(0, offset);\n var tail = targetList.slice(offset);\n targetList = head.concat(toInsert, tail).toList();\n }\n\n return targetList;\n}\n\nmodule.exports = insertIntoList;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar Immutable = require(\"immutable\");\n\nvar insertIntoList = require(\"./insertIntoList\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar Repeat = Immutable.Repeat;\n\nfunction insertTextIntoContentState(contentState, selectionState, text, characterMetadata) {\n !selectionState.isCollapsed() ? process.env.NODE_ENV !== \"production\" ? invariant(false, '`insertText` should only be called with a collapsed range.') : invariant(false) : void 0;\n var len = null;\n\n if (text != null) {\n len = text.length;\n }\n\n if (len == null || len === 0) {\n return contentState;\n }\n\n var blockMap = contentState.getBlockMap();\n var key = selectionState.getStartKey();\n var offset = selectionState.getStartOffset();\n var block = blockMap.get(key);\n var blockText = block.getText();\n var newBlock = block.merge({\n text: blockText.slice(0, offset) + text + blockText.slice(offset, block.getLength()),\n characterList: insertIntoList(block.getCharacterList(), Repeat(characterMetadata, len).toList(), offset)\n });\n var newOffset = offset + len;\n return contentState.merge({\n blockMap: blockMap.set(key, newBlock),\n selectionAfter: selectionState.merge({\n anchorOffset: newOffset,\n focusOffset: newOffset\n })\n });\n}\n\nmodule.exports = insertTextIntoContentState;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nfunction isElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n return node.nodeType === Node.ELEMENT_NODE;\n}\n\nmodule.exports = isElement;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\n/**\n * Utility method for determining whether or not the value returned\n * from a handler indicates that it was handled.\n */\nfunction isEventHandled(value) {\n return value === 'handled' || value === true;\n}\n\nmodule.exports = isEventHandled;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nvar isElement = require(\"./isElement\");\n\nfunction isHTMLAnchorElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n return isElement(node) && node.nodeName === 'A';\n}\n\nmodule.exports = isHTMLAnchorElement;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nvar isElement = require(\"./isElement\");\n\nfunction isHTMLBRElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n return isElement(node) && node.nodeName === 'BR';\n}\n\nmodule.exports = isHTMLBRElement;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nfunction isHTMLElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n if (!node.ownerDocument.defaultView) {\n return node instanceof HTMLElement;\n }\n\n if (node instanceof node.ownerDocument.defaultView.HTMLElement) {\n return true;\n }\n\n return false;\n}\n\nmodule.exports = isHTMLElement;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nvar isElement = require(\"./isElement\");\n\nfunction isHTMLImageElement(node) {\n if (!node || !node.ownerDocument) {\n return false;\n }\n\n return isElement(node) && node.nodeName === 'IMG';\n}\n\nmodule.exports = isHTMLImageElement;","\"use strict\";\n\n/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\nfunction isInstanceOfNode(target) {\n // we changed the name because of having duplicate module provider (fbjs)\n if (!target || !('ownerDocument' in target)) {\n return false;\n }\n\n if ('ownerDocument' in target) {\n var node = target;\n\n if (!node.ownerDocument.defaultView) {\n return node instanceof Node;\n }\n\n if (node instanceof node.ownerDocument.defaultView.Node) {\n return true;\n }\n }\n\n return false;\n}\n\nmodule.exports = isInstanceOfNode;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nfunction isSelectionAtLeafStart(editorState) {\n var selection = editorState.getSelection();\n var anchorKey = selection.getAnchorKey();\n var blockTree = editorState.getBlockTree(anchorKey);\n var offset = selection.getStartOffset();\n var isAtStart = false;\n blockTree.some(function (leafSet) {\n if (offset === leafSet.get('start')) {\n isAtStart = true;\n return true;\n }\n\n if (offset < leafSet.get('end')) {\n return leafSet.get('leaves').some(function (leaf) {\n var leafStart = leaf.get('start');\n\n if (offset === leafStart) {\n isAtStart = true;\n return true;\n }\n\n return false;\n });\n }\n\n return false;\n });\n return isAtStart;\n}\n\nmodule.exports = isSelectionAtLeafStart;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar Keys = require(\"fbjs/lib/Keys\");\n\nfunction isSoftNewlineEvent(e) {\n return e.which === Keys.RETURN && (e.getModifierState('Shift') || e.getModifierState('Alt') || e.getModifierState('Control'));\n}\n\nmodule.exports = isSoftNewlineEvent;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nvar expandRangeToStartOfLine = require(\"./expandRangeToStartOfLine\");\n\nvar getDraftEditorSelectionWithNodes = require(\"./getDraftEditorSelectionWithNodes\");\n\nvar moveSelectionBackward = require(\"./moveSelectionBackward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n\nfunction keyCommandBackspaceToStartOfLine(editorState, e) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n\n if (selection.isCollapsed() && selection.getAnchorOffset() === 0) {\n return moveSelectionBackward(strategyState, 1);\n }\n\n var ownerDocument = e.currentTarget.ownerDocument;\n var domSelection = ownerDocument.defaultView.getSelection(); // getRangeAt can technically throw if there's no selection, but we know\n // there is one here because text editor has focus (the cursor is a\n // selection of length 0). Therefore, we don't need to wrap this in a\n // try-catch block.\n\n var range = domSelection.getRangeAt(0);\n range = expandRangeToStartOfLine(range);\n return getDraftEditorSelectionWithNodes(strategyState, null, range.endContainer, range.endOffset, range.startContainer, range.startOffset).selectionState;\n }, 'backward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n return EditorState.push(editorState, afterRemoval, 'remove-range');\n}\n\nmodule.exports = keyCommandBackspaceToStartOfLine;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftRemovableWord = require(\"./DraftRemovableWord\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar moveSelectionBackward = require(\"./moveSelectionBackward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n/**\n * Delete the word that is left of the cursor, as well as any spaces or\n * punctuation after the word.\n */\n\n\nfunction keyCommandBackspaceWord(editorState) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n var offset = selection.getStartOffset(); // If there are no words before the cursor, remove the preceding newline.\n\n if (offset === 0) {\n return moveSelectionBackward(strategyState, 1);\n }\n\n var key = selection.getStartKey();\n var content = strategyState.getCurrentContent();\n var text = content.getBlockForKey(key).getText().slice(0, offset);\n var toRemove = DraftRemovableWord.getBackward(text);\n return moveSelectionBackward(strategyState, toRemove.length || 1);\n }, 'backward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n return EditorState.push(editorState, afterRemoval, 'remove-range');\n}\n\nmodule.exports = keyCommandBackspaceWord;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftRemovableWord = require(\"./DraftRemovableWord\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar moveSelectionForward = require(\"./moveSelectionForward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n/**\n * Delete the word that is right of the cursor, as well as any spaces or\n * punctuation before the word.\n */\n\n\nfunction keyCommandDeleteWord(editorState) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n var offset = selection.getStartOffset();\n var key = selection.getStartKey();\n var content = strategyState.getCurrentContent();\n var text = content.getBlockForKey(key).getText().slice(offset);\n var toRemove = DraftRemovableWord.getForward(text); // If there are no words in front of the cursor, remove the newline.\n\n return moveSelectionForward(strategyState, toRemove.length || 1);\n }, 'forward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n return EditorState.push(editorState, afterRemoval, 'remove-range');\n}\n\nmodule.exports = keyCommandDeleteWord;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nfunction keyCommandInsertNewline(editorState) {\n var contentState = DraftModifier.splitBlock(editorState.getCurrentContent(), editorState.getSelection());\n return EditorState.push(editorState, contentState, 'split-block');\n}\n\nmodule.exports = keyCommandInsertNewline;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n/**\n * See comment for `moveSelectionToStartOfBlock`.\n */\n\n\nfunction keyCommandMoveSelectionToEndOfBlock(editorState) {\n var selection = editorState.getSelection();\n var endKey = selection.getEndKey();\n var content = editorState.getCurrentContent();\n var textLength = content.getBlockForKey(endKey).getLength();\n return EditorState.set(editorState, {\n selection: selection.merge({\n anchorKey: endKey,\n anchorOffset: textLength,\n focusKey: endKey,\n focusOffset: textLength,\n isBackward: false\n }),\n forceSelection: true\n });\n}\n\nmodule.exports = keyCommandMoveSelectionToEndOfBlock;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n/**\n * Collapse selection at the start of the first selected block. This is used\n * for Firefox versions that attempt to navigate forward/backward instead of\n * moving the cursor. Other browsers are able to move the cursor natively.\n */\n\n\nfunction keyCommandMoveSelectionToStartOfBlock(editorState) {\n var selection = editorState.getSelection();\n var startKey = selection.getStartKey();\n return EditorState.set(editorState, {\n selection: selection.merge({\n anchorKey: startKey,\n anchorOffset: 0,\n focusKey: startKey,\n focusOffset: 0,\n isBackward: false\n }),\n forceSelection: true\n });\n}\n\nmodule.exports = keyCommandMoveSelectionToStartOfBlock;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nvar UnicodeUtils = require(\"fbjs/lib/UnicodeUtils\");\n\nvar moveSelectionBackward = require(\"./moveSelectionBackward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n/**\n * Remove the selected range. If the cursor is collapsed, remove the preceding\n * character. This operation is Unicode-aware, so removing a single character\n * will remove a surrogate pair properly as well.\n */\n\n\nfunction keyCommandPlainBackspace(editorState) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n var content = strategyState.getCurrentContent();\n var key = selection.getAnchorKey();\n var offset = selection.getAnchorOffset();\n var charBehind = content.getBlockForKey(key).getText()[offset - 1];\n return moveSelectionBackward(strategyState, charBehind ? UnicodeUtils.getUTF16Length(charBehind, 0) : 1);\n }, 'backward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n var selection = editorState.getSelection();\n return EditorState.push(editorState, afterRemoval.set('selectionBefore', selection), selection.isCollapsed() ? 'backspace-character' : 'remove-range');\n}\n\nmodule.exports = keyCommandPlainBackspace;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nvar UnicodeUtils = require(\"fbjs/lib/UnicodeUtils\");\n\nvar moveSelectionForward = require(\"./moveSelectionForward\");\n\nvar removeTextWithStrategy = require(\"./removeTextWithStrategy\");\n/**\n * Remove the selected range. If the cursor is collapsed, remove the following\n * character. This operation is Unicode-aware, so removing a single character\n * will remove a surrogate pair properly as well.\n */\n\n\nfunction keyCommandPlainDelete(editorState) {\n var afterRemoval = removeTextWithStrategy(editorState, function (strategyState) {\n var selection = strategyState.getSelection();\n var content = strategyState.getCurrentContent();\n var key = selection.getAnchorKey();\n var offset = selection.getAnchorOffset();\n var charAhead = content.getBlockForKey(key).getText()[offset];\n return moveSelectionForward(strategyState, charAhead ? UnicodeUtils.getUTF16Length(charAhead, 0) : 1);\n }, 'forward');\n\n if (afterRemoval === editorState.getCurrentContent()) {\n return editorState;\n }\n\n var selection = editorState.getSelection();\n return EditorState.push(editorState, afterRemoval.set('selectionBefore', selection), selection.isCollapsed() ? 'delete-character' : 'remove-range');\n}\n\nmodule.exports = keyCommandPlainDelete;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar EditorState = require(\"./EditorState\");\n\nvar getContentStateFragment = require(\"./getContentStateFragment\");\n/**\n * Transpose the characters on either side of a collapsed cursor, or\n * if the cursor is at the end of the block, transpose the last two\n * characters.\n */\n\n\nfunction keyCommandTransposeCharacters(editorState) {\n var selection = editorState.getSelection();\n\n if (!selection.isCollapsed()) {\n return editorState;\n }\n\n var offset = selection.getAnchorOffset();\n\n if (offset === 0) {\n return editorState;\n }\n\n var blockKey = selection.getAnchorKey();\n var content = editorState.getCurrentContent();\n var block = content.getBlockForKey(blockKey);\n var length = block.getLength(); // Nothing to transpose if there aren't two characters.\n\n if (length <= 1) {\n return editorState;\n }\n\n var removalRange;\n var finalSelection;\n\n if (offset === length) {\n // The cursor is at the end of the block. Swap the last two characters.\n removalRange = selection.set('anchorOffset', offset - 1);\n finalSelection = selection;\n } else {\n removalRange = selection.set('focusOffset', offset + 1);\n finalSelection = removalRange.set('anchorOffset', offset + 1);\n } // Extract the character to move as a fragment. This preserves its\n // styling and entity, if any.\n\n\n var movedFragment = getContentStateFragment(content, removalRange);\n var afterRemoval = DraftModifier.removeRange(content, removalRange, 'backward'); // After the removal, the insertion target is one character back.\n\n var selectionAfter = afterRemoval.getSelectionAfter();\n var targetOffset = selectionAfter.getAnchorOffset() - 1;\n var targetRange = selectionAfter.merge({\n anchorOffset: targetOffset,\n focusOffset: targetOffset\n });\n var afterInsert = DraftModifier.replaceWithFragment(afterRemoval, targetRange, movedFragment);\n var newEditorState = EditorState.push(editorState, afterInsert, 'insert-fragment');\n return EditorState.acceptSelection(newEditorState, finalSelection);\n}\n\nmodule.exports = keyCommandTransposeCharacters;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar EditorState = require(\"./EditorState\");\n\nfunction keyCommandUndo(e, editorState, updateFn) {\n var undoneState = EditorState.undo(editorState); // If the last change to occur was a spellcheck change, allow the undo\n // event to fall through to the browser. This allows the browser to record\n // the unwanted change, which should soon lead it to learn not to suggest\n // the correction again.\n\n if (editorState.getLastChangeType() === 'spellcheck-change') {\n var nativelyRenderedContent = undoneState.getCurrentContent();\n updateFn(EditorState.set(undoneState, {\n nativelyRenderedContent: nativelyRenderedContent\n }));\n return;\n } // Otheriwse, manage the undo behavior manually.\n\n\n e.preventDefault();\n\n if (!editorState.getNativelyRenderedContent()) {\n updateFn(undoneState);\n return;\n } // Trigger a re-render with the current content state to ensure that the\n // component tree has up-to-date props for comparison.\n\n\n updateFn(EditorState.set(editorState, {\n nativelyRenderedContent: null\n })); // Wait to ensure that the re-render has occurred before performing\n // the undo action.\n\n setTimeout(function () {\n updateFn(undoneState);\n }, 0);\n}\n\nmodule.exports = keyCommandUndo;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar Immutable = require(\"immutable\");\n\nvar Map = Immutable.Map;\n\nfunction modifyBlockForContentState(contentState, selectionState, operation) {\n var startKey = selectionState.getStartKey();\n var endKey = selectionState.getEndKey();\n var blockMap = contentState.getBlockMap();\n var newBlocks = blockMap.toSeq().skipUntil(function (_, k) {\n return k === startKey;\n }).takeUntil(function (_, k) {\n return k === endKey;\n }).concat(Map([[endKey, blockMap.get(endKey)]])).map(operation);\n return contentState.merge({\n blockMap: blockMap.merge(newBlocks),\n selectionBefore: selectionState,\n selectionAfter: selectionState\n });\n}\n\nmodule.exports = modifyBlockForContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar getNextDelimiterBlockKey = require(\"./getNextDelimiterBlockKey\");\n\nvar Immutable = require(\"immutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar OrderedMap = Immutable.OrderedMap,\n List = Immutable.List;\n\nvar transformBlock = function transformBlock(key, blockMap, func) {\n if (!key) {\n return;\n }\n\n var block = blockMap.get(key);\n\n if (!block) {\n return;\n }\n\n blockMap.set(key, func(block));\n};\n\nvar updateBlockMapLinks = function updateBlockMapLinks(blockMap, originalBlockToBeMoved, originalTargetBlock, insertionMode, isExperimentalTreeBlock) {\n if (!isExperimentalTreeBlock) {\n return blockMap;\n } // possible values of 'insertionMode' are: 'after', 'before'\n\n\n var isInsertedAfterTarget = insertionMode === 'after';\n var originalBlockKey = originalBlockToBeMoved.getKey();\n var originalTargetKey = originalTargetBlock.getKey();\n var originalParentKey = originalBlockToBeMoved.getParentKey();\n var originalNextSiblingKey = originalBlockToBeMoved.getNextSiblingKey();\n var originalPrevSiblingKey = originalBlockToBeMoved.getPrevSiblingKey();\n var newParentKey = originalTargetBlock.getParentKey();\n var newNextSiblingKey = isInsertedAfterTarget ? originalTargetBlock.getNextSiblingKey() : originalTargetKey;\n var newPrevSiblingKey = isInsertedAfterTarget ? originalTargetKey : originalTargetBlock.getPrevSiblingKey();\n return blockMap.withMutations(function (blocks) {\n // update old parent\n transformBlock(originalParentKey, blocks, function (block) {\n var parentChildrenList = block.getChildKeys();\n return block.merge({\n children: parentChildrenList[\"delete\"](parentChildrenList.indexOf(originalBlockKey))\n });\n }); // update old prev\n\n transformBlock(originalPrevSiblingKey, blocks, function (block) {\n return block.merge({\n nextSibling: originalNextSiblingKey\n });\n }); // update old next\n\n transformBlock(originalNextSiblingKey, blocks, function (block) {\n return block.merge({\n prevSibling: originalPrevSiblingKey\n });\n }); // update new next\n\n transformBlock(newNextSiblingKey, blocks, function (block) {\n return block.merge({\n prevSibling: originalBlockKey\n });\n }); // update new prev\n\n transformBlock(newPrevSiblingKey, blocks, function (block) {\n return block.merge({\n nextSibling: originalBlockKey\n });\n }); // update new parent\n\n transformBlock(newParentKey, blocks, function (block) {\n var newParentChildrenList = block.getChildKeys();\n var targetBlockIndex = newParentChildrenList.indexOf(originalTargetKey);\n var insertionIndex = isInsertedAfterTarget ? targetBlockIndex + 1 : targetBlockIndex !== 0 ? targetBlockIndex - 1 : 0;\n var newChildrenArray = newParentChildrenList.toArray();\n newChildrenArray.splice(insertionIndex, 0, originalBlockKey);\n return block.merge({\n children: List(newChildrenArray)\n });\n }); // update block\n\n transformBlock(originalBlockKey, blocks, function (block) {\n return block.merge({\n nextSibling: newNextSiblingKey,\n prevSibling: newPrevSiblingKey,\n parent: newParentKey\n });\n });\n });\n};\n\nvar moveBlockInContentState = function moveBlockInContentState(contentState, blockToBeMoved, targetBlock, insertionMode) {\n !(insertionMode !== 'replace') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Replacing blocks is not supported.') : invariant(false) : void 0;\n var targetKey = targetBlock.getKey();\n var blockKey = blockToBeMoved.getKey();\n !(blockKey !== targetKey) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Block cannot be moved next to itself.') : invariant(false) : void 0;\n var blockMap = contentState.getBlockMap();\n var isExperimentalTreeBlock = blockToBeMoved instanceof ContentBlockNode;\n var blocksToBeMoved = [blockToBeMoved];\n var blockMapWithoutBlocksToBeMoved = blockMap[\"delete\"](blockKey);\n\n if (isExperimentalTreeBlock) {\n blocksToBeMoved = [];\n blockMapWithoutBlocksToBeMoved = blockMap.withMutations(function (blocks) {\n var nextSiblingKey = blockToBeMoved.getNextSiblingKey();\n var nextDelimiterBlockKey = getNextDelimiterBlockKey(blockToBeMoved, blocks);\n blocks.toSeq().skipUntil(function (block) {\n return block.getKey() === blockKey;\n }).takeWhile(function (block) {\n var key = block.getKey();\n var isBlockToBeMoved = key === blockKey;\n var hasNextSiblingAndIsNotNextSibling = nextSiblingKey && key !== nextSiblingKey;\n var doesNotHaveNextSiblingAndIsNotDelimiter = !nextSiblingKey && block.getParentKey() && (!nextDelimiterBlockKey || key !== nextDelimiterBlockKey);\n return !!(isBlockToBeMoved || hasNextSiblingAndIsNotNextSibling || doesNotHaveNextSiblingAndIsNotDelimiter);\n }).forEach(function (block) {\n blocksToBeMoved.push(block);\n blocks[\"delete\"](block.getKey());\n });\n });\n }\n\n var blocksBefore = blockMapWithoutBlocksToBeMoved.toSeq().takeUntil(function (v) {\n return v === targetBlock;\n });\n var blocksAfter = blockMapWithoutBlocksToBeMoved.toSeq().skipUntil(function (v) {\n return v === targetBlock;\n }).skip(1);\n var slicedBlocks = blocksToBeMoved.map(function (block) {\n return [block.getKey(), block];\n });\n var newBlocks = OrderedMap();\n\n if (insertionMode === 'before') {\n var blockBefore = contentState.getBlockBefore(targetKey);\n !(!blockBefore || blockBefore.getKey() !== blockToBeMoved.getKey()) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Block cannot be moved next to itself.') : invariant(false) : void 0;\n newBlocks = blocksBefore.concat([].concat(slicedBlocks, [[targetKey, targetBlock]]), blocksAfter).toOrderedMap();\n } else if (insertionMode === 'after') {\n var blockAfter = contentState.getBlockAfter(targetKey);\n !(!blockAfter || blockAfter.getKey() !== blockKey) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Block cannot be moved next to itself.') : invariant(false) : void 0;\n newBlocks = blocksBefore.concat([[targetKey, targetBlock]].concat(slicedBlocks), blocksAfter).toOrderedMap();\n }\n\n return contentState.merge({\n blockMap: updateBlockMapLinks(newBlocks, blockToBeMoved, targetBlock, insertionMode, isExperimentalTreeBlock),\n selectionBefore: contentState.getSelectionAfter(),\n selectionAfter: contentState.getSelectionAfter().merge({\n anchorKey: blockKey,\n focusKey: blockKey\n })\n });\n};\n\nmodule.exports = moveBlockInContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar warning = require(\"fbjs/lib/warning\");\n/**\n * Given a collapsed selection, move the focus `maxDistance` backward within\n * the selected block. If the selection will go beyond the start of the block,\n * move focus to the end of the previous block, but no further.\n *\n * This function is not Unicode-aware, so surrogate pairs will be treated\n * as having length 2.\n */\n\n\nfunction moveSelectionBackward(editorState, maxDistance) {\n var selection = editorState.getSelection(); // Should eventually make this an invariant\n\n process.env.NODE_ENV !== \"production\" ? warning(selection.isCollapsed(), 'moveSelectionBackward should only be called with a collapsed SelectionState') : void 0;\n var content = editorState.getCurrentContent();\n var key = selection.getStartKey();\n var offset = selection.getStartOffset();\n var focusKey = key;\n var focusOffset = 0;\n\n if (maxDistance > offset) {\n var keyBefore = content.getKeyBefore(key);\n\n if (keyBefore == null) {\n focusKey = key;\n } else {\n focusKey = keyBefore;\n var blockBefore = content.getBlockForKey(keyBefore);\n focusOffset = blockBefore.getText().length;\n }\n } else {\n focusOffset = offset - maxDistance;\n }\n\n return selection.merge({\n focusKey: focusKey,\n focusOffset: focusOffset,\n isBackward: true\n });\n}\n\nmodule.exports = moveSelectionBackward;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar warning = require(\"fbjs/lib/warning\");\n/**\n * Given a collapsed selection, move the focus `maxDistance` forward within\n * the selected block. If the selection will go beyond the end of the block,\n * move focus to the start of the next block, but no further.\n *\n * This function is not Unicode-aware, so surrogate pairs will be treated\n * as having length 2.\n */\n\n\nfunction moveSelectionForward(editorState, maxDistance) {\n var selection = editorState.getSelection(); // Should eventually make this an invariant\n\n process.env.NODE_ENV !== \"production\" ? warning(selection.isCollapsed(), 'moveSelectionForward should only be called with a collapsed SelectionState') : void 0;\n var key = selection.getStartKey();\n var offset = selection.getStartOffset();\n var content = editorState.getCurrentContent();\n var focusKey = key;\n var focusOffset;\n var block = content.getBlockForKey(key);\n\n if (maxDistance > block.getText().length - offset) {\n focusKey = content.getKeyAfter(key);\n focusOffset = 0;\n } else {\n focusOffset = offset + maxDistance;\n }\n\n return selection.merge({\n focusKey: focusKey,\n focusOffset: focusOffset\n });\n}\n\nmodule.exports = moveSelectionForward;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar Immutable = require(\"immutable\");\n\nvar OrderedMap = Immutable.OrderedMap;\n\nvar randomizeContentBlockNodeKeys = function randomizeContentBlockNodeKeys(blockMap) {\n var newKeysRef = {}; // we keep track of root blocks in order to update subsequent sibling links\n\n var lastRootBlock;\n return OrderedMap(blockMap.withMutations(function (blockMapState) {\n blockMapState.forEach(function (block, index) {\n var oldKey = block.getKey();\n var nextKey = block.getNextSiblingKey();\n var prevKey = block.getPrevSiblingKey();\n var childrenKeys = block.getChildKeys();\n var parentKey = block.getParentKey(); // new key that we will use to build linking\n\n var key = generateRandomKey(); // we will add it here to re-use it later\n\n newKeysRef[oldKey] = key;\n\n if (nextKey) {\n var nextBlock = blockMapState.get(nextKey);\n\n if (nextBlock) {\n blockMapState.setIn([nextKey, 'prevSibling'], key);\n } else {\n // this can happen when generating random keys for fragments\n blockMapState.setIn([oldKey, 'nextSibling'], null);\n }\n }\n\n if (prevKey) {\n var prevBlock = blockMapState.get(prevKey);\n\n if (prevBlock) {\n blockMapState.setIn([prevKey, 'nextSibling'], key);\n } else {\n // this can happen when generating random keys for fragments\n blockMapState.setIn([oldKey, 'prevSibling'], null);\n }\n }\n\n if (parentKey && blockMapState.get(parentKey)) {\n var parentBlock = blockMapState.get(parentKey);\n var parentChildrenList = parentBlock.getChildKeys();\n blockMapState.setIn([parentKey, 'children'], parentChildrenList.set(parentChildrenList.indexOf(block.getKey()), key));\n } else {\n // blocks will then be treated as root block nodes\n blockMapState.setIn([oldKey, 'parent'], null);\n\n if (lastRootBlock) {\n blockMapState.setIn([lastRootBlock.getKey(), 'nextSibling'], key);\n blockMapState.setIn([oldKey, 'prevSibling'], newKeysRef[lastRootBlock.getKey()]);\n }\n\n lastRootBlock = blockMapState.get(oldKey);\n }\n\n childrenKeys.forEach(function (childKey) {\n var childBlock = blockMapState.get(childKey);\n\n if (childBlock) {\n blockMapState.setIn([childKey, 'parent'], key);\n } else {\n blockMapState.setIn([oldKey, 'children'], block.getChildKeys().filter(function (child) {\n return child !== childKey;\n }));\n }\n });\n });\n }).toArray().map(function (block) {\n return [newKeysRef[block.getKey()], block.set('key', newKeysRef[block.getKey()])];\n }));\n};\n\nvar randomizeContentBlockKeys = function randomizeContentBlockKeys(blockMap) {\n return OrderedMap(blockMap.toArray().map(function (block) {\n var key = generateRandomKey();\n return [key, block.set('key', key)];\n }));\n};\n\nvar randomizeBlockMapKeys = function randomizeBlockMapKeys(blockMap) {\n var isTreeBasedBlockMap = blockMap.first() instanceof ContentBlockNode;\n\n if (!isTreeBasedBlockMap) {\n return randomizeContentBlockKeys(blockMap);\n }\n\n return randomizeContentBlockNodeKeys(blockMap);\n};\n\nmodule.exports = randomizeBlockMapKeys;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar CharacterMetadata = require(\"./CharacterMetadata\");\n\nvar findRangesImmutable = require(\"./findRangesImmutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nfunction removeEntitiesAtEdges(contentState, selectionState) {\n var blockMap = contentState.getBlockMap();\n var entityMap = contentState.getEntityMap();\n var updatedBlocks = {};\n var startKey = selectionState.getStartKey();\n var startOffset = selectionState.getStartOffset();\n var startBlock = blockMap.get(startKey);\n var updatedStart = removeForBlock(entityMap, startBlock, startOffset);\n\n if (updatedStart !== startBlock) {\n updatedBlocks[startKey] = updatedStart;\n }\n\n var endKey = selectionState.getEndKey();\n var endOffset = selectionState.getEndOffset();\n var endBlock = blockMap.get(endKey);\n\n if (startKey === endKey) {\n endBlock = updatedStart;\n }\n\n var updatedEnd = removeForBlock(entityMap, endBlock, endOffset);\n\n if (updatedEnd !== endBlock) {\n updatedBlocks[endKey] = updatedEnd;\n }\n\n if (!Object.keys(updatedBlocks).length) {\n return contentState.set('selectionAfter', selectionState);\n }\n\n return contentState.merge({\n blockMap: blockMap.merge(updatedBlocks),\n selectionAfter: selectionState\n });\n}\n/**\n * Given a list of characters and an offset that is in the middle of an entity,\n * returns the start and end of the entity that is overlapping the offset.\n * Note: This method requires that the offset be in an entity range.\n */\n\n\nfunction getRemovalRange(characters, entityKey, offset) {\n var removalRange; // Iterates through a list looking for ranges of matching items\n // based on the 'isEqual' callback.\n // Then instead of returning the result, call the 'found' callback\n // with each range.\n // Then filters those ranges based on the 'filter' callback\n //\n // Here we use it to find ranges of characters with the same entity key.\n\n findRangesImmutable(characters, // the list to iterate through\n function (a, b) {\n return a.getEntity() === b.getEntity();\n }, // 'isEqual' callback\n function (element) {\n return element.getEntity() === entityKey;\n }, // 'filter' callback\n function (start, end) {\n // 'found' callback\n if (start <= offset && end >= offset) {\n // this entity overlaps the offset index\n removalRange = {\n start: start,\n end: end\n };\n }\n });\n !(typeof removalRange === 'object') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Removal range must exist within character list.') : invariant(false) : void 0;\n return removalRange;\n}\n\nfunction removeForBlock(entityMap, block, offset) {\n var chars = block.getCharacterList();\n var charBefore = offset > 0 ? chars.get(offset - 1) : undefined;\n var charAfter = offset < chars.count() ? chars.get(offset) : undefined;\n var entityBeforeCursor = charBefore ? charBefore.getEntity() : undefined;\n var entityAfterCursor = charAfter ? charAfter.getEntity() : undefined;\n\n if (entityAfterCursor && entityAfterCursor === entityBeforeCursor) {\n var entity = entityMap.__get(entityAfterCursor);\n\n if (entity.getMutability() !== 'MUTABLE') {\n var _getRemovalRange = getRemovalRange(chars, entityAfterCursor, offset),\n start = _getRemovalRange.start,\n end = _getRemovalRange.end;\n\n var current;\n\n while (start < end) {\n current = chars.get(start);\n chars = chars.set(start, CharacterMetadata.applyEntity(current, null));\n start++;\n }\n\n return block.set('characterList', chars);\n }\n }\n\n return block;\n}\n\nmodule.exports = removeEntitiesAtEdges;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar getNextDelimiterBlockKey = require(\"./getNextDelimiterBlockKey\");\n\nvar Immutable = require(\"immutable\");\n\nvar List = Immutable.List,\n Map = Immutable.Map;\n\nvar transformBlock = function transformBlock(key, blockMap, func) {\n if (!key) {\n return;\n }\n\n var block = blockMap.get(key);\n\n if (!block) {\n return;\n }\n\n blockMap.set(key, func(block));\n};\n/**\n * Ancestors needs to be preserved when there are non selected\n * children to make sure we do not leave any orphans behind\n */\n\n\nvar getAncestorsKeys = function getAncestorsKeys(blockKey, blockMap) {\n var parents = [];\n\n if (!blockKey) {\n return parents;\n }\n\n var blockNode = blockMap.get(blockKey);\n\n while (blockNode && blockNode.getParentKey()) {\n var parentKey = blockNode.getParentKey();\n\n if (parentKey) {\n parents.push(parentKey);\n }\n\n blockNode = parentKey ? blockMap.get(parentKey) : null;\n }\n\n return parents;\n};\n/**\n * Get all next delimiter keys until we hit a root delimiter and return\n * an array of key references\n */\n\n\nvar getNextDelimitersBlockKeys = function getNextDelimitersBlockKeys(block, blockMap) {\n var nextDelimiters = [];\n\n if (!block) {\n return nextDelimiters;\n }\n\n var nextDelimiter = getNextDelimiterBlockKey(block, blockMap);\n\n while (nextDelimiter && blockMap.get(nextDelimiter)) {\n var _block = blockMap.get(nextDelimiter);\n\n nextDelimiters.push(nextDelimiter); // we do not need to keep checking all root node siblings, just the first occurance\n\n nextDelimiter = _block.getParentKey() ? getNextDelimiterBlockKey(_block, blockMap) : null;\n }\n\n return nextDelimiters;\n};\n\nvar getNextValidSibling = function getNextValidSibling(block, blockMap, originalBlockMap) {\n if (!block) {\n return null;\n } // note that we need to make sure we refer to the original block since this\n // function is called within a withMutations\n\n\n var nextValidSiblingKey = originalBlockMap.get(block.getKey()).getNextSiblingKey();\n\n while (nextValidSiblingKey && !blockMap.get(nextValidSiblingKey)) {\n nextValidSiblingKey = originalBlockMap.get(nextValidSiblingKey).getNextSiblingKey() || null;\n }\n\n return nextValidSiblingKey;\n};\n\nvar getPrevValidSibling = function getPrevValidSibling(block, blockMap, originalBlockMap) {\n if (!block) {\n return null;\n } // note that we need to make sure we refer to the original block since this\n // function is called within a withMutations\n\n\n var prevValidSiblingKey = originalBlockMap.get(block.getKey()).getPrevSiblingKey();\n\n while (prevValidSiblingKey && !blockMap.get(prevValidSiblingKey)) {\n prevValidSiblingKey = originalBlockMap.get(prevValidSiblingKey).getPrevSiblingKey() || null;\n }\n\n return prevValidSiblingKey;\n};\n\nvar updateBlockMapLinks = function updateBlockMapLinks(blockMap, startBlock, endBlock, originalBlockMap) {\n return blockMap.withMutations(function (blocks) {\n // update start block if its retained\n transformBlock(startBlock.getKey(), blocks, function (block) {\n return block.merge({\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n }); // update endblock if its retained\n\n transformBlock(endBlock.getKey(), blocks, function (block) {\n return block.merge({\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n }); // update start block parent ancestors\n\n getAncestorsKeys(startBlock.getKey(), originalBlockMap).forEach(function (parentKey) {\n return transformBlock(parentKey, blocks, function (block) {\n return block.merge({\n children: block.getChildKeys().filter(function (key) {\n return blocks.get(key);\n }),\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n });\n }); // update start block next - can only happen if startBlock == endBlock\n\n transformBlock(startBlock.getNextSiblingKey(), blocks, function (block) {\n return block.merge({\n prevSibling: startBlock.getPrevSiblingKey()\n });\n }); // update start block prev\n\n transformBlock(startBlock.getPrevSiblingKey(), blocks, function (block) {\n return block.merge({\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap)\n });\n }); // update end block next\n\n transformBlock(endBlock.getNextSiblingKey(), blocks, function (block) {\n return block.merge({\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n }); // update end block prev\n\n transformBlock(endBlock.getPrevSiblingKey(), blocks, function (block) {\n return block.merge({\n nextSibling: endBlock.getNextSiblingKey()\n });\n }); // update end block parent ancestors\n\n getAncestorsKeys(endBlock.getKey(), originalBlockMap).forEach(function (parentKey) {\n transformBlock(parentKey, blocks, function (block) {\n return block.merge({\n children: block.getChildKeys().filter(function (key) {\n return blocks.get(key);\n }),\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n });\n }); // update next delimiters all the way to a root delimiter\n\n getNextDelimitersBlockKeys(endBlock, originalBlockMap).forEach(function (delimiterKey) {\n return transformBlock(delimiterKey, blocks, function (block) {\n return block.merge({\n nextSibling: getNextValidSibling(block, blocks, originalBlockMap),\n prevSibling: getPrevValidSibling(block, blocks, originalBlockMap)\n });\n });\n }); // if parent (startBlock) was deleted\n\n if (blockMap.get(startBlock.getKey()) == null && blockMap.get(endBlock.getKey()) != null && endBlock.getParentKey() === startBlock.getKey() && endBlock.getPrevSiblingKey() == null) {\n var prevSiblingKey = startBlock.getPrevSiblingKey(); // endBlock becomes next sibling of parent's prevSibling\n\n transformBlock(endBlock.getKey(), blocks, function (block) {\n return block.merge({\n prevSibling: prevSiblingKey\n });\n });\n transformBlock(prevSiblingKey, blocks, function (block) {\n return block.merge({\n nextSibling: endBlock.getKey()\n });\n }); // Update parent for previous parent's children, and children for that parent\n\n var prevSibling = prevSiblingKey ? blockMap.get(prevSiblingKey) : null;\n var newParentKey = prevSibling ? prevSibling.getParentKey() : null;\n startBlock.getChildKeys().forEach(function (childKey) {\n transformBlock(childKey, blocks, function (block) {\n return block.merge({\n parent: newParentKey // set to null if there is no parent\n\n });\n });\n });\n\n if (newParentKey != null) {\n var newParent = blockMap.get(newParentKey);\n transformBlock(newParentKey, blocks, function (block) {\n return block.merge({\n children: newParent.getChildKeys().concat(startBlock.getChildKeys())\n });\n });\n } // last child of deleted parent should point to next sibling\n\n\n transformBlock(startBlock.getChildKeys().find(function (key) {\n var block = blockMap.get(key);\n return block.getNextSiblingKey() === null;\n }), blocks, function (block) {\n return block.merge({\n nextSibling: startBlock.getNextSiblingKey()\n });\n });\n }\n });\n};\n\nvar removeRangeFromContentState = function removeRangeFromContentState(contentState, selectionState) {\n if (selectionState.isCollapsed()) {\n return contentState;\n }\n\n var blockMap = contentState.getBlockMap();\n var startKey = selectionState.getStartKey();\n var startOffset = selectionState.getStartOffset();\n var endKey = selectionState.getEndKey();\n var endOffset = selectionState.getEndOffset();\n var startBlock = blockMap.get(startKey);\n var endBlock = blockMap.get(endKey); // we assume that ContentBlockNode and ContentBlocks are not mixed together\n\n var isExperimentalTreeBlock = startBlock instanceof ContentBlockNode; // used to retain blocks that should not be deleted to avoid orphan children\n\n var parentAncestors = [];\n\n if (isExperimentalTreeBlock) {\n var endBlockchildrenKeys = endBlock.getChildKeys();\n var endBlockAncestors = getAncestorsKeys(endKey, blockMap); // endBlock has unselected siblings so we can not remove its ancestors parents\n\n if (endBlock.getNextSiblingKey()) {\n parentAncestors = parentAncestors.concat(endBlockAncestors);\n } // endBlock has children so can not remove this block or any of its ancestors\n\n\n if (!endBlockchildrenKeys.isEmpty()) {\n parentAncestors = parentAncestors.concat(endBlockAncestors.concat([endKey]));\n } // we need to retain all ancestors of the next delimiter block\n\n\n parentAncestors = parentAncestors.concat(getAncestorsKeys(getNextDelimiterBlockKey(endBlock, blockMap), blockMap));\n }\n\n var characterList;\n\n if (startBlock === endBlock) {\n characterList = removeFromList(startBlock.getCharacterList(), startOffset, endOffset);\n } else {\n characterList = startBlock.getCharacterList().slice(0, startOffset).concat(endBlock.getCharacterList().slice(endOffset));\n }\n\n var modifiedStart = startBlock.merge({\n text: startBlock.getText().slice(0, startOffset) + endBlock.getText().slice(endOffset),\n characterList: characterList\n }); // If cursor (collapsed) is at the start of the first child, delete parent\n // instead of child\n\n var shouldDeleteParent = isExperimentalTreeBlock && startOffset === 0 && endOffset === 0 && endBlock.getParentKey() === startKey && endBlock.getPrevSiblingKey() == null;\n var newBlocks = shouldDeleteParent ? Map([[startKey, null]]) : blockMap.toSeq().skipUntil(function (_, k) {\n return k === startKey;\n }).takeUntil(function (_, k) {\n return k === endKey;\n }).filter(function (_, k) {\n return parentAncestors.indexOf(k) === -1;\n }).concat(Map([[endKey, null]])).map(function (_, k) {\n return k === startKey ? modifiedStart : null;\n });\n var updatedBlockMap = blockMap.merge(newBlocks).filter(function (block) {\n return !!block;\n }); // Only update tree block pointers if the range is across blocks\n\n if (isExperimentalTreeBlock && startBlock !== endBlock) {\n updatedBlockMap = updateBlockMapLinks(updatedBlockMap, startBlock, endBlock, blockMap);\n }\n\n return contentState.merge({\n blockMap: updatedBlockMap,\n selectionBefore: selectionState,\n selectionAfter: selectionState.merge({\n anchorKey: startKey,\n anchorOffset: startOffset,\n focusKey: startKey,\n focusOffset: startOffset,\n isBackward: false\n })\n });\n};\n/**\n * Maintain persistence for target list when removing characters on the\n * head and tail of the character list.\n */\n\n\nvar removeFromList = function removeFromList(targetList, startOffset, endOffset) {\n if (startOffset === 0) {\n while (startOffset < endOffset) {\n targetList = targetList.shift();\n startOffset++;\n }\n } else if (endOffset === targetList.count()) {\n while (endOffset > startOffset) {\n targetList = targetList.pop();\n endOffset--;\n }\n } else {\n var head = targetList.slice(0, startOffset);\n var tail = targetList.slice(endOffset);\n targetList = head.concat(tail).toList();\n }\n\n return targetList;\n};\n\nmodule.exports = removeRangeFromContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftModifier = require(\"./DraftModifier\");\n\nvar gkx = require(\"./gkx\");\n\nvar experimentalTreeDataSupport = gkx('draft_tree_data_support');\n/**\n * For a collapsed selection state, remove text based on the specified strategy.\n * If the selection state is not collapsed, remove the entire selected range.\n */\n\nfunction removeTextWithStrategy(editorState, strategy, direction) {\n var selection = editorState.getSelection();\n var content = editorState.getCurrentContent();\n var target = selection;\n var anchorKey = selection.getAnchorKey();\n var focusKey = selection.getFocusKey();\n var anchorBlock = content.getBlockForKey(anchorKey);\n\n if (experimentalTreeDataSupport) {\n if (direction === 'forward') {\n if (anchorKey !== focusKey) {\n // For now we ignore forward delete across blocks,\n // if there is demand for this we will implement it.\n return content;\n }\n }\n }\n\n if (selection.isCollapsed()) {\n if (direction === 'forward') {\n if (editorState.isSelectionAtEndOfContent()) {\n return content;\n }\n\n if (experimentalTreeDataSupport) {\n var isAtEndOfBlock = selection.getAnchorOffset() === content.getBlockForKey(anchorKey).getLength();\n\n if (isAtEndOfBlock) {\n var anchorBlockSibling = content.getBlockForKey(anchorBlock.nextSibling);\n\n if (!anchorBlockSibling || anchorBlockSibling.getLength() === 0) {\n // For now we ignore forward delete at the end of a block,\n // if there is demand for this we will implement it.\n return content;\n }\n }\n }\n } else if (editorState.isSelectionAtStartOfContent()) {\n return content;\n }\n\n target = strategy(editorState);\n\n if (target === selection) {\n return content;\n }\n }\n\n return DraftModifier.removeRange(content, target, direction);\n}\n\nmodule.exports = removeTextWithStrategy;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar REGEX_BLOCK_DELIMITER = new RegExp('\\r', 'g');\n\nfunction sanitizeDraftText(input) {\n return input.replace(REGEX_BLOCK_DELIMITER, '');\n}\n\nmodule.exports = sanitizeDraftText;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar DraftEffects = require(\"./DraftEffects\");\n\nvar DraftJsDebugLogging = require(\"./DraftJsDebugLogging\");\n\nvar UserAgent = require(\"fbjs/lib/UserAgent\");\n\nvar containsNode = require(\"fbjs/lib/containsNode\");\n\nvar getActiveElement = require(\"fbjs/lib/getActiveElement\");\n\nvar getCorrectDocumentFromNode = require(\"./getCorrectDocumentFromNode\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar isElement = require(\"./isElement\");\n\nvar isIE = UserAgent.isBrowser('IE');\n\nfunction getAnonymizedDOM(node, getNodeLabels) {\n if (!node) {\n return '[empty]';\n }\n\n var anonymized = anonymizeTextWithin(node, getNodeLabels);\n\n if (anonymized.nodeType === Node.TEXT_NODE) {\n return anonymized.textContent;\n }\n\n !isElement(anonymized) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Node must be an Element if it is not a text node.') : invariant(false) : void 0;\n var castedElement = anonymized;\n return castedElement.outerHTML;\n}\n\nfunction anonymizeTextWithin(node, getNodeLabels) {\n var labels = getNodeLabels !== undefined ? getNodeLabels(node) : [];\n\n if (node.nodeType === Node.TEXT_NODE) {\n var length = node.textContent.length;\n return getCorrectDocumentFromNode(node).createTextNode('[text ' + length + (labels.length ? ' | ' + labels.join(', ') : '') + ']');\n }\n\n var clone = node.cloneNode();\n\n if (clone.nodeType === 1 && labels.length) {\n clone.setAttribute('data-labels', labels.join(', '));\n }\n\n var childNodes = node.childNodes;\n\n for (var ii = 0; ii < childNodes.length; ii++) {\n clone.appendChild(anonymizeTextWithin(childNodes[ii], getNodeLabels));\n }\n\n return clone;\n}\n\nfunction getAnonymizedEditorDOM(node, getNodeLabels) {\n // grabbing the DOM content of the Draft editor\n var currentNode = node; // this should only be used after checking with isElement\n\n var castedNode = currentNode;\n\n while (currentNode) {\n if (isElement(currentNode) && castedNode.hasAttribute('contenteditable')) {\n // found the Draft editor container\n return getAnonymizedDOM(currentNode, getNodeLabels);\n } else {\n currentNode = currentNode.parentNode;\n castedNode = currentNode;\n }\n }\n\n return 'Could not find contentEditable parent of node';\n}\n\nfunction getNodeLength(node) {\n return node.nodeValue === null ? node.childNodes.length : node.nodeValue.length;\n}\n/**\n * In modern non-IE browsers, we can support both forward and backward\n * selections.\n *\n * Note: IE10+ supports the Selection object, but it does not support\n * the `extend` method, which means that even in modern IE, it's not possible\n * to programatically create a backward selection. Thus, for all IE\n * versions, we use the old IE API to create our selections.\n */\n\n\nfunction setDraftEditorSelection(selectionState, node, blockKey, nodeStart, nodeEnd) {\n // It's possible that the editor has been removed from the DOM but\n // our selection code doesn't know it yet. Forcing selection in\n // this case may lead to errors, so just bail now.\n var documentObject = getCorrectDocumentFromNode(node);\n\n if (!containsNode(documentObject.documentElement, node)) {\n return;\n }\n\n var selection = documentObject.defaultView.getSelection();\n var anchorKey = selectionState.getAnchorKey();\n var anchorOffset = selectionState.getAnchorOffset();\n var focusKey = selectionState.getFocusKey();\n var focusOffset = selectionState.getFocusOffset();\n var isBackward = selectionState.getIsBackward(); // IE doesn't support backward selection. Swap key/offset pairs.\n\n if (!selection.extend && isBackward) {\n var tempKey = anchorKey;\n var tempOffset = anchorOffset;\n anchorKey = focusKey;\n anchorOffset = focusOffset;\n focusKey = tempKey;\n focusOffset = tempOffset;\n isBackward = false;\n }\n\n var hasAnchor = anchorKey === blockKey && nodeStart <= anchorOffset && nodeEnd >= anchorOffset;\n var hasFocus = focusKey === blockKey && nodeStart <= focusOffset && nodeEnd >= focusOffset; // If the selection is entirely bound within this node, set the selection\n // and be done.\n\n if (hasAnchor && hasFocus) {\n selection.removeAllRanges();\n addPointToSelection(selection, node, anchorOffset - nodeStart, selectionState);\n addFocusToSelection(selection, node, focusOffset - nodeStart, selectionState);\n return;\n }\n\n if (!isBackward) {\n // If the anchor is within this node, set the range start.\n if (hasAnchor) {\n selection.removeAllRanges();\n addPointToSelection(selection, node, anchorOffset - nodeStart, selectionState);\n } // If the focus is within this node, we can assume that we have\n // already set the appropriate start range on the selection, and\n // can simply extend the selection.\n\n\n if (hasFocus) {\n addFocusToSelection(selection, node, focusOffset - nodeStart, selectionState);\n }\n } else {\n // If this node has the focus, set the selection range to be a\n // collapsed range beginning here. Later, when we encounter the anchor,\n // we'll use this information to extend the selection.\n if (hasFocus) {\n selection.removeAllRanges();\n addPointToSelection(selection, node, focusOffset - nodeStart, selectionState);\n } // If this node has the anchor, we may assume that the correct\n // focus information is already stored on the selection object.\n // We keep track of it, reset the selection range, and extend it\n // back to the focus point.\n\n\n if (hasAnchor) {\n var storedFocusNode = selection.focusNode;\n var storedFocusOffset = selection.focusOffset;\n selection.removeAllRanges();\n addPointToSelection(selection, node, anchorOffset - nodeStart, selectionState);\n addFocusToSelection(selection, storedFocusNode, storedFocusOffset, selectionState);\n }\n }\n}\n/**\n * Extend selection towards focus point.\n */\n\n\nfunction addFocusToSelection(selection, node, offset, selectionState) {\n var activeElement = getActiveElement();\n var extend = selection.extend; // containsNode returns false if node is null.\n // Let's refine the type of this value out here so flow knows.\n\n if (extend && node != null && containsNode(activeElement, node)) {\n // If `extend` is called while another element has focus, an error is\n // thrown. We therefore disable `extend` if the active element is somewhere\n // other than the node we are selecting. This should only occur in Firefox,\n // since it is the only browser to support multiple selections.\n // See https://bugzilla.mozilla.org/show_bug.cgi?id=921444.\n // logging to catch bug that is being reported in t16250795\n if (offset > getNodeLength(node)) {\n // the call to 'selection.extend' is about to throw\n DraftJsDebugLogging.logSelectionStateFailure({\n anonymizedDom: getAnonymizedEditorDOM(node),\n extraParams: JSON.stringify({\n offset: offset\n }),\n selectionState: JSON.stringify(selectionState.toJS())\n });\n } // logging to catch bug that is being reported in t18110632\n\n\n var nodeWasFocus = node === selection.focusNode;\n\n try {\n // Fixes some reports of \"InvalidStateError: Failed to execute 'extend' on\n // 'Selection': This Selection object doesn't have any Ranges.\"\n // Note: selection.extend does not exist in IE.\n if (selection.rangeCount > 0 && selection.extend) {\n selection.extend(node, offset);\n }\n } catch (e) {\n DraftJsDebugLogging.logSelectionStateFailure({\n anonymizedDom: getAnonymizedEditorDOM(node, function (n) {\n var labels = [];\n\n if (n === activeElement) {\n labels.push('active element');\n }\n\n if (n === selection.anchorNode) {\n labels.push('selection anchor node');\n }\n\n if (n === selection.focusNode) {\n labels.push('selection focus node');\n }\n\n return labels;\n }),\n extraParams: JSON.stringify({\n activeElementName: activeElement ? activeElement.nodeName : null,\n nodeIsFocus: node === selection.focusNode,\n nodeWasFocus: nodeWasFocus,\n selectionRangeCount: selection.rangeCount,\n selectionAnchorNodeName: selection.anchorNode ? selection.anchorNode.nodeName : null,\n selectionAnchorOffset: selection.anchorOffset,\n selectionFocusNodeName: selection.focusNode ? selection.focusNode.nodeName : null,\n selectionFocusOffset: selection.focusOffset,\n message: e ? '' + e : null,\n offset: offset\n }, null, 2),\n selectionState: JSON.stringify(selectionState.toJS(), null, 2)\n }); // allow the error to be thrown -\n // better than continuing in a broken state\n\n throw e;\n }\n } else {\n // IE doesn't support extend. This will mean no backward selection.\n // Extract the existing selection range and add focus to it.\n // Additionally, clone the selection range. IE11 throws an\n // InvalidStateError when attempting to access selection properties\n // after the range is detached.\n if (node && selection.rangeCount > 0) {\n var range = selection.getRangeAt(0);\n range.setEnd(node, offset);\n selection.addRange(range.cloneRange());\n }\n }\n}\n\nfunction addPointToSelection(selection, node, offset, selectionState) {\n var range = getCorrectDocumentFromNode(node).createRange(); // logging to catch bug that is being reported in t16250795\n\n if (offset > getNodeLength(node)) {\n // in this case we know that the call to 'range.setStart' is about to throw\n DraftJsDebugLogging.logSelectionStateFailure({\n anonymizedDom: getAnonymizedEditorDOM(node),\n extraParams: JSON.stringify({\n offset: offset\n }),\n selectionState: JSON.stringify(selectionState.toJS())\n });\n DraftEffects.handleExtensionCausedError();\n }\n\n range.setStart(node, offset); // IE sometimes throws Unspecified Error when trying to addRange\n\n if (isIE) {\n try {\n selection.addRange(range);\n } catch (e) {\n if (process.env.NODE_ENV !== \"production\") {\n /* eslint-disable-next-line no-console */\n console.warn('Call to selection.addRange() threw exception: ', e);\n }\n }\n } else {\n selection.addRange(range);\n }\n}\n\nmodule.exports = {\n setDraftEditorSelection: setDraftEditorSelection,\n addFocusToSelection: addFocusToSelection\n};","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar ContentBlockNode = require(\"./ContentBlockNode\");\n\nvar generateRandomKey = require(\"./generateRandomKey\");\n\nvar Immutable = require(\"immutable\");\n\nvar invariant = require(\"fbjs/lib/invariant\");\n\nvar modifyBlockForContentState = require(\"./modifyBlockForContentState\");\n\nvar List = Immutable.List,\n Map = Immutable.Map;\n\nvar transformBlock = function transformBlock(key, blockMap, func) {\n if (!key) {\n return;\n }\n\n var block = blockMap.get(key);\n\n if (!block) {\n return;\n }\n\n blockMap.set(key, func(block));\n};\n\nvar updateBlockMapLinks = function updateBlockMapLinks(blockMap, originalBlock, belowBlock) {\n return blockMap.withMutations(function (blocks) {\n var originalBlockKey = originalBlock.getKey();\n var belowBlockKey = belowBlock.getKey(); // update block parent\n\n transformBlock(originalBlock.getParentKey(), blocks, function (block) {\n var parentChildrenList = block.getChildKeys();\n var insertionIndex = parentChildrenList.indexOf(originalBlockKey) + 1;\n var newChildrenArray = parentChildrenList.toArray();\n newChildrenArray.splice(insertionIndex, 0, belowBlockKey);\n return block.merge({\n children: List(newChildrenArray)\n });\n }); // update original next block\n\n transformBlock(originalBlock.getNextSiblingKey(), blocks, function (block) {\n return block.merge({\n prevSibling: belowBlockKey\n });\n }); // update original block\n\n transformBlock(originalBlockKey, blocks, function (block) {\n return block.merge({\n nextSibling: belowBlockKey\n });\n }); // update below block\n\n transformBlock(belowBlockKey, blocks, function (block) {\n return block.merge({\n prevSibling: originalBlockKey\n });\n });\n });\n};\n\nvar splitBlockInContentState = function splitBlockInContentState(contentState, selectionState) {\n !selectionState.isCollapsed() ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Selection range must be collapsed.') : invariant(false) : void 0;\n var key = selectionState.getAnchorKey();\n var blockMap = contentState.getBlockMap();\n var blockToSplit = blockMap.get(key);\n var text = blockToSplit.getText();\n\n if (!text) {\n var blockType = blockToSplit.getType();\n\n if (blockType === 'unordered-list-item' || blockType === 'ordered-list-item') {\n return modifyBlockForContentState(contentState, selectionState, function (block) {\n return block.merge({\n type: 'unstyled',\n depth: 0\n });\n });\n }\n }\n\n var offset = selectionState.getAnchorOffset();\n var chars = blockToSplit.getCharacterList();\n var keyBelow = generateRandomKey();\n var isExperimentalTreeBlock = blockToSplit instanceof ContentBlockNode;\n var blockAbove = blockToSplit.merge({\n text: text.slice(0, offset),\n characterList: chars.slice(0, offset)\n });\n var blockBelow = blockAbove.merge({\n key: keyBelow,\n text: text.slice(offset),\n characterList: chars.slice(offset),\n data: Map()\n });\n var blocksBefore = blockMap.toSeq().takeUntil(function (v) {\n return v === blockToSplit;\n });\n var blocksAfter = blockMap.toSeq().skipUntil(function (v) {\n return v === blockToSplit;\n }).rest();\n var newBlocks = blocksBefore.concat([[key, blockAbove], [keyBelow, blockBelow]], blocksAfter).toOrderedMap();\n\n if (isExperimentalTreeBlock) {\n !blockToSplit.getChildKeys().isEmpty() ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'ContentBlockNode must not have children') : invariant(false) : void 0;\n newBlocks = updateBlockMapLinks(newBlocks, blockAbove, blockBelow);\n }\n\n return contentState.merge({\n blockMap: newBlocks,\n selectionBefore: selectionState,\n selectionAfter: selectionState.merge({\n anchorKey: keyBelow,\n anchorOffset: 0,\n focusKey: keyBelow,\n focusOffset: 0,\n isBackward: false\n })\n });\n};\n\nmodule.exports = splitBlockInContentState;","/**\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @format\n * \n * @emails oncall+draft_js\n */\n'use strict';\n\nvar NEWLINE_REGEX = /\\r\\n?|\\n/g;\n\nfunction splitTextIntoTextBlocks(text) {\n return text.split(NEWLINE_REGEX);\n}\n\nmodule.exports = splitTextIntoTextBlocks;","\"use strict\";\n\n/**\n * Copyright 2004-present Facebook. All Rights Reserved.\n *\n * @typechecks\n * \n * @format\n */\n\n/*eslint-disable no-bitwise */\n\n/**\n * Based on the rfc4122-compliant solution posted at\n * http://stackoverflow.com/questions/105034\n */\nfunction uuid() {\n return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {\n var r = Math.random() * 16 | 0;\n var v = c == 'x' ? r : r & 0x3 | 0x8;\n return v.toString(16);\n });\n}\n\nmodule.exports = uuid;","/**\n * Copyright (c) 2014-2015, Facebook, Inc.\n * All rights reserved.\n *\n * This source code is licensed under the BSD-style license found in the\n * LICENSE file in the root directory of this source tree. An additional grant\n * of patent rights can be found in the PATENTS file in the same directory.\n */\n\n(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n global.Immutable = factory();\n}(this, function () { 'use strict';var SLICE$0 = Array.prototype.slice;\n\n function createClass(ctor, superClass) {\n if (superClass) {\n ctor.prototype = Object.create(superClass.prototype);\n }\n ctor.prototype.constructor = ctor;\n }\n\n function Iterable(value) {\n return isIterable(value) ? value : Seq(value);\n }\n\n\n createClass(KeyedIterable, Iterable);\n function KeyedIterable(value) {\n return isKeyed(value) ? value : KeyedSeq(value);\n }\n\n\n createClass(IndexedIterable, Iterable);\n function IndexedIterable(value) {\n return isIndexed(value) ? value : IndexedSeq(value);\n }\n\n\n createClass(SetIterable, Iterable);\n function SetIterable(value) {\n return isIterable(value) && !isAssociative(value) ? value : SetSeq(value);\n }\n\n\n\n function isIterable(maybeIterable) {\n return !!(maybeIterable && maybeIterable[IS_ITERABLE_SENTINEL]);\n }\n\n function isKeyed(maybeKeyed) {\n return !!(maybeKeyed && maybeKeyed[IS_KEYED_SENTINEL]);\n }\n\n function isIndexed(maybeIndexed) {\n return !!(maybeIndexed && maybeIndexed[IS_INDEXED_SENTINEL]);\n }\n\n function isAssociative(maybeAssociative) {\n return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);\n }\n\n function isOrdered(maybeOrdered) {\n return !!(maybeOrdered && maybeOrdered[IS_ORDERED_SENTINEL]);\n }\n\n Iterable.isIterable = isIterable;\n Iterable.isKeyed = isKeyed;\n Iterable.isIndexed = isIndexed;\n Iterable.isAssociative = isAssociative;\n Iterable.isOrdered = isOrdered;\n\n Iterable.Keyed = KeyedIterable;\n Iterable.Indexed = IndexedIterable;\n Iterable.Set = SetIterable;\n\n\n var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';\n var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';\n var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';\n var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';\n\n // Used for setting prototype methods that IE8 chokes on.\n var DELETE = 'delete';\n\n // Constants describing the size of trie nodes.\n var SHIFT = 5; // Resulted in best performance after ______?\n var SIZE = 1 << SHIFT;\n var MASK = SIZE - 1;\n\n // A consistent shared value representing \"not set\" which equals nothing other\n // than itself, and nothing that could be provided externally.\n var NOT_SET = {};\n\n // Boolean references, Rough equivalent of `bool &`.\n var CHANGE_LENGTH = { value: false };\n var DID_ALTER = { value: false };\n\n function MakeRef(ref) {\n ref.value = false;\n return ref;\n }\n\n function SetRef(ref) {\n ref && (ref.value = true);\n }\n\n // A function which returns a value representing an \"owner\" for transient writes\n // to tries. The return value will only ever equal itself, and will not equal\n // the return of any subsequent call of this function.\n function OwnerID() {}\n\n // http://jsperf.com/copy-array-inline\n function arrCopy(arr, offset) {\n offset = offset || 0;\n var len = Math.max(0, arr.length - offset);\n var newArr = new Array(len);\n for (var ii = 0; ii < len; ii++) {\n newArr[ii] = arr[ii + offset];\n }\n return newArr;\n }\n\n function ensureSize(iter) {\n if (iter.size === undefined) {\n iter.size = iter.__iterate(returnTrue);\n }\n return iter.size;\n }\n\n function wrapIndex(iter, index) {\n // This implements \"is array index\" which the ECMAString spec defines as:\n //\n // A String property name P is an array index if and only if\n // ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal\n // to 2^32−1.\n //\n // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects\n if (typeof index !== 'number') {\n var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32\n if ('' + uint32Index !== index || uint32Index === 4294967295) {\n return NaN;\n }\n index = uint32Index;\n }\n return index < 0 ? ensureSize(iter) + index : index;\n }\n\n function returnTrue() {\n return true;\n }\n\n function wholeSlice(begin, end, size) {\n return (begin === 0 || (size !== undefined && begin <= -size)) &&\n (end === undefined || (size !== undefined && end >= size));\n }\n\n function resolveBegin(begin, size) {\n return resolveIndex(begin, size, 0);\n }\n\n function resolveEnd(end, size) {\n return resolveIndex(end, size, size);\n }\n\n function resolveIndex(index, size, defaultIndex) {\n return index === undefined ?\n defaultIndex :\n index < 0 ?\n Math.max(0, size + index) :\n size === undefined ?\n index :\n Math.min(size, index);\n }\n\n /* global Symbol */\n\n var ITERATE_KEYS = 0;\n var ITERATE_VALUES = 1;\n var ITERATE_ENTRIES = 2;\n\n var REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;\n var FAUX_ITERATOR_SYMBOL = '@@iterator';\n\n var ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;\n\n\n function Iterator(next) {\n this.next = next;\n }\n\n Iterator.prototype.toString = function() {\n return '[Iterator]';\n };\n\n\n Iterator.KEYS = ITERATE_KEYS;\n Iterator.VALUES = ITERATE_VALUES;\n Iterator.ENTRIES = ITERATE_ENTRIES;\n\n Iterator.prototype.inspect =\n Iterator.prototype.toSource = function () { return this.toString(); }\n Iterator.prototype[ITERATOR_SYMBOL] = function () {\n return this;\n };\n\n\n function iteratorValue(type, k, v, iteratorResult) {\n var value = type === 0 ? k : type === 1 ? v : [k, v];\n iteratorResult ? (iteratorResult.value = value) : (iteratorResult = {\n value: value, done: false\n });\n return iteratorResult;\n }\n\n function iteratorDone() {\n return { value: undefined, done: true };\n }\n\n function hasIterator(maybeIterable) {\n return !!getIteratorFn(maybeIterable);\n }\n\n function isIterator(maybeIterator) {\n return maybeIterator && typeof maybeIterator.next === 'function';\n }\n\n function getIterator(iterable) {\n var iteratorFn = getIteratorFn(iterable);\n return iteratorFn && iteratorFn.call(iterable);\n }\n\n function getIteratorFn(iterable) {\n var iteratorFn = iterable && (\n (REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||\n iterable[FAUX_ITERATOR_SYMBOL]\n );\n if (typeof iteratorFn === 'function') {\n return iteratorFn;\n }\n }\n\n function isArrayLike(value) {\n return value && typeof value.length === 'number';\n }\n\n createClass(Seq, Iterable);\n function Seq(value) {\n return value === null || value === undefined ? emptySequence() :\n isIterable(value) ? value.toSeq() : seqFromValue(value);\n }\n\n Seq.of = function(/*...values*/) {\n return Seq(arguments);\n };\n\n Seq.prototype.toSeq = function() {\n return this;\n };\n\n Seq.prototype.toString = function() {\n return this.__toString('Seq {', '}');\n };\n\n Seq.prototype.cacheResult = function() {\n if (!this._cache && this.__iterateUncached) {\n this._cache = this.entrySeq().toArray();\n this.size = this._cache.length;\n }\n return this;\n };\n\n // abstract __iterateUncached(fn, reverse)\n\n Seq.prototype.__iterate = function(fn, reverse) {\n return seqIterate(this, fn, reverse, true);\n };\n\n // abstract __iteratorUncached(type, reverse)\n\n Seq.prototype.__iterator = function(type, reverse) {\n return seqIterator(this, type, reverse, true);\n };\n\n\n\n createClass(KeyedSeq, Seq);\n function KeyedSeq(value) {\n return value === null || value === undefined ?\n emptySequence().toKeyedSeq() :\n isIterable(value) ?\n (isKeyed(value) ? value.toSeq() : value.fromEntrySeq()) :\n keyedSeqFromValue(value);\n }\n\n KeyedSeq.prototype.toKeyedSeq = function() {\n return this;\n };\n\n\n\n createClass(IndexedSeq, Seq);\n function IndexedSeq(value) {\n return value === null || value === undefined ? emptySequence() :\n !isIterable(value) ? indexedSeqFromValue(value) :\n isKeyed(value) ? value.entrySeq() : value.toIndexedSeq();\n }\n\n IndexedSeq.of = function(/*...values*/) {\n return IndexedSeq(arguments);\n };\n\n IndexedSeq.prototype.toIndexedSeq = function() {\n return this;\n };\n\n IndexedSeq.prototype.toString = function() {\n return this.__toString('Seq [', ']');\n };\n\n IndexedSeq.prototype.__iterate = function(fn, reverse) {\n return seqIterate(this, fn, reverse, false);\n };\n\n IndexedSeq.prototype.__iterator = function(type, reverse) {\n return seqIterator(this, type, reverse, false);\n };\n\n\n\n createClass(SetSeq, Seq);\n function SetSeq(value) {\n return (\n value === null || value === undefined ? emptySequence() :\n !isIterable(value) ? indexedSeqFromValue(value) :\n isKeyed(value) ? value.entrySeq() : value\n ).toSetSeq();\n }\n\n SetSeq.of = function(/*...values*/) {\n return SetSeq(arguments);\n };\n\n SetSeq.prototype.toSetSeq = function() {\n return this;\n };\n\n\n\n Seq.isSeq = isSeq;\n Seq.Keyed = KeyedSeq;\n Seq.Set = SetSeq;\n Seq.Indexed = IndexedSeq;\n\n var IS_SEQ_SENTINEL = '@@__IMMUTABLE_SEQ__@@';\n\n Seq.prototype[IS_SEQ_SENTINEL] = true;\n\n\n\n createClass(ArraySeq, IndexedSeq);\n function ArraySeq(array) {\n this._array = array;\n this.size = array.length;\n }\n\n ArraySeq.prototype.get = function(index, notSetValue) {\n return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;\n };\n\n ArraySeq.prototype.__iterate = function(fn, reverse) {\n var array = this._array;\n var maxIndex = array.length - 1;\n for (var ii = 0; ii <= maxIndex; ii++) {\n if (fn(array[reverse ? maxIndex - ii : ii], ii, this) === false) {\n return ii + 1;\n }\n }\n return ii;\n };\n\n ArraySeq.prototype.__iterator = function(type, reverse) {\n var array = this._array;\n var maxIndex = array.length - 1;\n var ii = 0;\n return new Iterator(function() \n {return ii > maxIndex ?\n iteratorDone() :\n iteratorValue(type, ii, array[reverse ? maxIndex - ii++ : ii++])}\n );\n };\n\n\n\n createClass(ObjectSeq, KeyedSeq);\n function ObjectSeq(object) {\n var keys = Object.keys(object);\n this._object = object;\n this._keys = keys;\n this.size = keys.length;\n }\n\n ObjectSeq.prototype.get = function(key, notSetValue) {\n if (notSetValue !== undefined && !this.has(key)) {\n return notSetValue;\n }\n return this._object[key];\n };\n\n ObjectSeq.prototype.has = function(key) {\n return this._object.hasOwnProperty(key);\n };\n\n ObjectSeq.prototype.__iterate = function(fn, reverse) {\n var object = this._object;\n var keys = this._keys;\n var maxIndex = keys.length - 1;\n for (var ii = 0; ii <= maxIndex; ii++) {\n var key = keys[reverse ? maxIndex - ii : ii];\n if (fn(object[key], key, this) === false) {\n return ii + 1;\n }\n }\n return ii;\n };\n\n ObjectSeq.prototype.__iterator = function(type, reverse) {\n var object = this._object;\n var keys = this._keys;\n var maxIndex = keys.length - 1;\n var ii = 0;\n return new Iterator(function() {\n var key = keys[reverse ? maxIndex - ii : ii];\n return ii++ > maxIndex ?\n iteratorDone() :\n iteratorValue(type, key, object[key]);\n });\n };\n\n ObjectSeq.prototype[IS_ORDERED_SENTINEL] = true;\n\n\n createClass(IterableSeq, IndexedSeq);\n function IterableSeq(iterable) {\n this._iterable = iterable;\n this.size = iterable.length || iterable.size;\n }\n\n IterableSeq.prototype.__iterateUncached = function(fn, reverse) {\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var iterable = this._iterable;\n var iterator = getIterator(iterable);\n var iterations = 0;\n if (isIterator(iterator)) {\n var step;\n while (!(step = iterator.next()).done) {\n if (fn(step.value, iterations++, this) === false) {\n break;\n }\n }\n }\n return iterations;\n };\n\n IterableSeq.prototype.__iteratorUncached = function(type, reverse) {\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterable = this._iterable;\n var iterator = getIterator(iterable);\n if (!isIterator(iterator)) {\n return new Iterator(iteratorDone);\n }\n var iterations = 0;\n return new Iterator(function() {\n var step = iterator.next();\n return step.done ? step : iteratorValue(type, iterations++, step.value);\n });\n };\n\n\n\n createClass(IteratorSeq, IndexedSeq);\n function IteratorSeq(iterator) {\n this._iterator = iterator;\n this._iteratorCache = [];\n }\n\n IteratorSeq.prototype.__iterateUncached = function(fn, reverse) {\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var iterator = this._iterator;\n var cache = this._iteratorCache;\n var iterations = 0;\n while (iterations < cache.length) {\n if (fn(cache[iterations], iterations++, this) === false) {\n return iterations;\n }\n }\n var step;\n while (!(step = iterator.next()).done) {\n var val = step.value;\n cache[iterations] = val;\n if (fn(val, iterations++, this) === false) {\n break;\n }\n }\n return iterations;\n };\n\n IteratorSeq.prototype.__iteratorUncached = function(type, reverse) {\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterator = this._iterator;\n var cache = this._iteratorCache;\n var iterations = 0;\n return new Iterator(function() {\n if (iterations >= cache.length) {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n cache[iterations] = step.value;\n }\n return iteratorValue(type, iterations, cache[iterations++]);\n });\n };\n\n\n\n\n // # pragma Helper functions\n\n function isSeq(maybeSeq) {\n return !!(maybeSeq && maybeSeq[IS_SEQ_SENTINEL]);\n }\n\n var EMPTY_SEQ;\n\n function emptySequence() {\n return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));\n }\n\n function keyedSeqFromValue(value) {\n var seq =\n Array.isArray(value) ? new ArraySeq(value).fromEntrySeq() :\n isIterator(value) ? new IteratorSeq(value).fromEntrySeq() :\n hasIterator(value) ? new IterableSeq(value).fromEntrySeq() :\n typeof value === 'object' ? new ObjectSeq(value) :\n undefined;\n if (!seq) {\n throw new TypeError(\n 'Expected Array or iterable object of [k, v] entries, '+\n 'or keyed object: ' + value\n );\n }\n return seq;\n }\n\n function indexedSeqFromValue(value) {\n var seq = maybeIndexedSeqFromValue(value);\n if (!seq) {\n throw new TypeError(\n 'Expected Array or iterable object of values: ' + value\n );\n }\n return seq;\n }\n\n function seqFromValue(value) {\n var seq = maybeIndexedSeqFromValue(value) ||\n (typeof value === 'object' && new ObjectSeq(value));\n if (!seq) {\n throw new TypeError(\n 'Expected Array or iterable object of values, or keyed object: ' + value\n );\n }\n return seq;\n }\n\n function maybeIndexedSeqFromValue(value) {\n return (\n isArrayLike(value) ? new ArraySeq(value) :\n isIterator(value) ? new IteratorSeq(value) :\n hasIterator(value) ? new IterableSeq(value) :\n undefined\n );\n }\n\n function seqIterate(seq, fn, reverse, useKeys) {\n var cache = seq._cache;\n if (cache) {\n var maxIndex = cache.length - 1;\n for (var ii = 0; ii <= maxIndex; ii++) {\n var entry = cache[reverse ? maxIndex - ii : ii];\n if (fn(entry[1], useKeys ? entry[0] : ii, seq) === false) {\n return ii + 1;\n }\n }\n return ii;\n }\n return seq.__iterateUncached(fn, reverse);\n }\n\n function seqIterator(seq, type, reverse, useKeys) {\n var cache = seq._cache;\n if (cache) {\n var maxIndex = cache.length - 1;\n var ii = 0;\n return new Iterator(function() {\n var entry = cache[reverse ? maxIndex - ii : ii];\n return ii++ > maxIndex ?\n iteratorDone() :\n iteratorValue(type, useKeys ? entry[0] : ii - 1, entry[1]);\n });\n }\n return seq.__iteratorUncached(type, reverse);\n }\n\n function fromJS(json, converter) {\n return converter ?\n fromJSWith(converter, json, '', {'': json}) :\n fromJSDefault(json);\n }\n\n function fromJSWith(converter, json, key, parentJSON) {\n if (Array.isArray(json)) {\n return converter.call(parentJSON, key, IndexedSeq(json).map(function(v, k) {return fromJSWith(converter, v, k, json)}));\n }\n if (isPlainObj(json)) {\n return converter.call(parentJSON, key, KeyedSeq(json).map(function(v, k) {return fromJSWith(converter, v, k, json)}));\n }\n return json;\n }\n\n function fromJSDefault(json) {\n if (Array.isArray(json)) {\n return IndexedSeq(json).map(fromJSDefault).toList();\n }\n if (isPlainObj(json)) {\n return KeyedSeq(json).map(fromJSDefault).toMap();\n }\n return json;\n }\n\n function isPlainObj(value) {\n return value && (value.constructor === Object || value.constructor === undefined);\n }\n\n /**\n * An extension of the \"same-value\" algorithm as [described for use by ES6 Map\n * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)\n *\n * NaN is considered the same as NaN, however -0 and 0 are considered the same\n * value, which is different from the algorithm described by\n * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).\n *\n * This is extended further to allow Objects to describe the values they\n * represent, by way of `valueOf` or `equals` (and `hashCode`).\n *\n * Note: because of this extension, the key equality of Immutable.Map and the\n * value equality of Immutable.Set will differ from ES6 Map and Set.\n *\n * ### Defining custom values\n *\n * The easiest way to describe the value an object represents is by implementing\n * `valueOf`. For example, `Date` represents a value by returning a unix\n * timestamp for `valueOf`:\n *\n * var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...\n * var date2 = new Date(1234567890000);\n * date1.valueOf(); // 1234567890000\n * assert( date1 !== date2 );\n * assert( Immutable.is( date1, date2 ) );\n *\n * Note: overriding `valueOf` may have other implications if you use this object\n * where JavaScript expects a primitive, such as implicit string coercion.\n *\n * For more complex types, especially collections, implementing `valueOf` may\n * not be performant. An alternative is to implement `equals` and `hashCode`.\n *\n * `equals` takes another object, presumably of similar type, and returns true\n * if the it is equal. Equality is symmetrical, so the same result should be\n * returned if this and the argument are flipped.\n *\n * assert( a.equals(b) === b.equals(a) );\n *\n * `hashCode` returns a 32bit integer number representing the object which will\n * be used to determine how to store the value object in a Map or Set. You must\n * provide both or neither methods, one must not exist without the other.\n *\n * Also, an important relationship between these methods must be upheld: if two\n * values are equal, they *must* return the same hashCode. If the values are not\n * equal, they might have the same hashCode; this is called a hash collision,\n * and while undesirable for performance reasons, it is acceptable.\n *\n * if (a.equals(b)) {\n * assert( a.hashCode() === b.hashCode() );\n * }\n *\n * All Immutable collections implement `equals` and `hashCode`.\n *\n */\n function is(valueA, valueB) {\n if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {\n return true;\n }\n if (!valueA || !valueB) {\n return false;\n }\n if (typeof valueA.valueOf === 'function' &&\n typeof valueB.valueOf === 'function') {\n valueA = valueA.valueOf();\n valueB = valueB.valueOf();\n if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {\n return true;\n }\n if (!valueA || !valueB) {\n return false;\n }\n }\n if (typeof valueA.equals === 'function' &&\n typeof valueB.equals === 'function' &&\n valueA.equals(valueB)) {\n return true;\n }\n return false;\n }\n\n function deepEqual(a, b) {\n if (a === b) {\n return true;\n }\n\n if (\n !isIterable(b) ||\n a.size !== undefined && b.size !== undefined && a.size !== b.size ||\n a.__hash !== undefined && b.__hash !== undefined && a.__hash !== b.__hash ||\n isKeyed(a) !== isKeyed(b) ||\n isIndexed(a) !== isIndexed(b) ||\n isOrdered(a) !== isOrdered(b)\n ) {\n return false;\n }\n\n if (a.size === 0 && b.size === 0) {\n return true;\n }\n\n var notAssociative = !isAssociative(a);\n\n if (isOrdered(a)) {\n var entries = a.entries();\n return b.every(function(v, k) {\n var entry = entries.next().value;\n return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));\n }) && entries.next().done;\n }\n\n var flipped = false;\n\n if (a.size === undefined) {\n if (b.size === undefined) {\n if (typeof a.cacheResult === 'function') {\n a.cacheResult();\n }\n } else {\n flipped = true;\n var _ = a;\n a = b;\n b = _;\n }\n }\n\n var allEqual = true;\n var bSize = b.__iterate(function(v, k) {\n if (notAssociative ? !a.has(v) :\n flipped ? !is(v, a.get(k, NOT_SET)) : !is(a.get(k, NOT_SET), v)) {\n allEqual = false;\n return false;\n }\n });\n\n return allEqual && a.size === bSize;\n }\n\n createClass(Repeat, IndexedSeq);\n\n function Repeat(value, times) {\n if (!(this instanceof Repeat)) {\n return new Repeat(value, times);\n }\n this._value = value;\n this.size = times === undefined ? Infinity : Math.max(0, times);\n if (this.size === 0) {\n if (EMPTY_REPEAT) {\n return EMPTY_REPEAT;\n }\n EMPTY_REPEAT = this;\n }\n }\n\n Repeat.prototype.toString = function() {\n if (this.size === 0) {\n return 'Repeat []';\n }\n return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';\n };\n\n Repeat.prototype.get = function(index, notSetValue) {\n return this.has(index) ? this._value : notSetValue;\n };\n\n Repeat.prototype.includes = function(searchValue) {\n return is(this._value, searchValue);\n };\n\n Repeat.prototype.slice = function(begin, end) {\n var size = this.size;\n return wholeSlice(begin, end, size) ? this :\n new Repeat(this._value, resolveEnd(end, size) - resolveBegin(begin, size));\n };\n\n Repeat.prototype.reverse = function() {\n return this;\n };\n\n Repeat.prototype.indexOf = function(searchValue) {\n if (is(this._value, searchValue)) {\n return 0;\n }\n return -1;\n };\n\n Repeat.prototype.lastIndexOf = function(searchValue) {\n if (is(this._value, searchValue)) {\n return this.size;\n }\n return -1;\n };\n\n Repeat.prototype.__iterate = function(fn, reverse) {\n for (var ii = 0; ii < this.size; ii++) {\n if (fn(this._value, ii, this) === false) {\n return ii + 1;\n }\n }\n return ii;\n };\n\n Repeat.prototype.__iterator = function(type, reverse) {var this$0 = this;\n var ii = 0;\n return new Iterator(function() \n {return ii < this$0.size ? iteratorValue(type, ii++, this$0._value) : iteratorDone()}\n );\n };\n\n Repeat.prototype.equals = function(other) {\n return other instanceof Repeat ?\n is(this._value, other._value) :\n deepEqual(other);\n };\n\n\n var EMPTY_REPEAT;\n\n function invariant(condition, error) {\n if (!condition) throw new Error(error);\n }\n\n createClass(Range, IndexedSeq);\n\n function Range(start, end, step) {\n if (!(this instanceof Range)) {\n return new Range(start, end, step);\n }\n invariant(step !== 0, 'Cannot step a Range by 0');\n start = start || 0;\n if (end === undefined) {\n end = Infinity;\n }\n step = step === undefined ? 1 : Math.abs(step);\n if (end < start) {\n step = -step;\n }\n this._start = start;\n this._end = end;\n this._step = step;\n this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);\n if (this.size === 0) {\n if (EMPTY_RANGE) {\n return EMPTY_RANGE;\n }\n EMPTY_RANGE = this;\n }\n }\n\n Range.prototype.toString = function() {\n if (this.size === 0) {\n return 'Range []';\n }\n return 'Range [ ' +\n this._start + '...' + this._end +\n (this._step > 1 ? ' by ' + this._step : '') +\n ' ]';\n };\n\n Range.prototype.get = function(index, notSetValue) {\n return this.has(index) ?\n this._start + wrapIndex(this, index) * this._step :\n notSetValue;\n };\n\n Range.prototype.includes = function(searchValue) {\n var possibleIndex = (searchValue - this._start) / this._step;\n return possibleIndex >= 0 &&\n possibleIndex < this.size &&\n possibleIndex === Math.floor(possibleIndex);\n };\n\n Range.prototype.slice = function(begin, end) {\n if (wholeSlice(begin, end, this.size)) {\n return this;\n }\n begin = resolveBegin(begin, this.size);\n end = resolveEnd(end, this.size);\n if (end <= begin) {\n return new Range(0, 0);\n }\n return new Range(this.get(begin, this._end), this.get(end, this._end), this._step);\n };\n\n Range.prototype.indexOf = function(searchValue) {\n var offsetValue = searchValue - this._start;\n if (offsetValue % this._step === 0) {\n var index = offsetValue / this._step;\n if (index >= 0 && index < this.size) {\n return index\n }\n }\n return -1;\n };\n\n Range.prototype.lastIndexOf = function(searchValue) {\n return this.indexOf(searchValue);\n };\n\n Range.prototype.__iterate = function(fn, reverse) {\n var maxIndex = this.size - 1;\n var step = this._step;\n var value = reverse ? this._start + maxIndex * step : this._start;\n for (var ii = 0; ii <= maxIndex; ii++) {\n if (fn(value, ii, this) === false) {\n return ii + 1;\n }\n value += reverse ? -step : step;\n }\n return ii;\n };\n\n Range.prototype.__iterator = function(type, reverse) {\n var maxIndex = this.size - 1;\n var step = this._step;\n var value = reverse ? this._start + maxIndex * step : this._start;\n var ii = 0;\n return new Iterator(function() {\n var v = value;\n value += reverse ? -step : step;\n return ii > maxIndex ? iteratorDone() : iteratorValue(type, ii++, v);\n });\n };\n\n Range.prototype.equals = function(other) {\n return other instanceof Range ?\n this._start === other._start &&\n this._end === other._end &&\n this._step === other._step :\n deepEqual(this, other);\n };\n\n\n var EMPTY_RANGE;\n\n createClass(Collection, Iterable);\n function Collection() {\n throw TypeError('Abstract');\n }\n\n\n createClass(KeyedCollection, Collection);function KeyedCollection() {}\n\n createClass(IndexedCollection, Collection);function IndexedCollection() {}\n\n createClass(SetCollection, Collection);function SetCollection() {}\n\n\n Collection.Keyed = KeyedCollection;\n Collection.Indexed = IndexedCollection;\n Collection.Set = SetCollection;\n\n var imul =\n typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2 ?\n Math.imul :\n function imul(a, b) {\n a = a | 0; // int\n b = b | 0; // int\n var c = a & 0xffff;\n var d = b & 0xffff;\n // Shift by 0 fixes the sign on the high part.\n return (c * d) + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0) | 0; // int\n };\n\n // v8 has an optimization for storing 31-bit signed numbers.\n // Values which have either 00 or 11 as the high order bits qualify.\n // This function drops the highest order bit in a signed number, maintaining\n // the sign bit.\n function smi(i32) {\n return ((i32 >>> 1) & 0x40000000) | (i32 & 0xBFFFFFFF);\n }\n\n function hash(o) {\n if (o === false || o === null || o === undefined) {\n return 0;\n }\n if (typeof o.valueOf === 'function') {\n o = o.valueOf();\n if (o === false || o === null || o === undefined) {\n return 0;\n }\n }\n if (o === true) {\n return 1;\n }\n var type = typeof o;\n if (type === 'number') {\n var h = o | 0;\n if (h !== o) {\n h ^= o * 0xFFFFFFFF;\n }\n while (o > 0xFFFFFFFF) {\n o /= 0xFFFFFFFF;\n h ^= o;\n }\n return smi(h);\n }\n if (type === 'string') {\n return o.length > STRING_HASH_CACHE_MIN_STRLEN ? cachedHashString(o) : hashString(o);\n }\n if (typeof o.hashCode === 'function') {\n return o.hashCode();\n }\n if (type === 'object') {\n return hashJSObj(o);\n }\n if (typeof o.toString === 'function') {\n return hashString(o.toString());\n }\n throw new Error('Value type ' + type + ' cannot be hashed.');\n }\n\n function cachedHashString(string) {\n var hash = stringHashCache[string];\n if (hash === undefined) {\n hash = hashString(string);\n if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {\n STRING_HASH_CACHE_SIZE = 0;\n stringHashCache = {};\n }\n STRING_HASH_CACHE_SIZE++;\n stringHashCache[string] = hash;\n }\n return hash;\n }\n\n // http://jsperf.com/hashing-strings\n function hashString(string) {\n // This is the hash from JVM\n // The hash code for a string is computed as\n // s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],\n // where s[i] is the ith character of the string and n is the length of\n // the string. We \"mod\" the result to make it between 0 (inclusive) and 2^31\n // (exclusive) by dropping high bits.\n var hash = 0;\n for (var ii = 0; ii < string.length; ii++) {\n hash = 31 * hash + string.charCodeAt(ii) | 0;\n }\n return smi(hash);\n }\n\n function hashJSObj(obj) {\n var hash;\n if (usingWeakMap) {\n hash = weakMap.get(obj);\n if (hash !== undefined) {\n return hash;\n }\n }\n\n hash = obj[UID_HASH_KEY];\n if (hash !== undefined) {\n return hash;\n }\n\n if (!canDefineProperty) {\n hash = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];\n if (hash !== undefined) {\n return hash;\n }\n\n hash = getIENodeHash(obj);\n if (hash !== undefined) {\n return hash;\n }\n }\n\n hash = ++objHashUID;\n if (objHashUID & 0x40000000) {\n objHashUID = 0;\n }\n\n if (usingWeakMap) {\n weakMap.set(obj, hash);\n } else if (isExtensible !== undefined && isExtensible(obj) === false) {\n throw new Error('Non-extensible objects are not allowed as keys.');\n } else if (canDefineProperty) {\n Object.defineProperty(obj, UID_HASH_KEY, {\n 'enumerable': false,\n 'configurable': false,\n 'writable': false,\n 'value': hash\n });\n } else if (obj.propertyIsEnumerable !== undefined &&\n obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable) {\n // Since we can't define a non-enumerable property on the object\n // we'll hijack one of the less-used non-enumerable properties to\n // save our hash on it. Since this is a function it will not show up in\n // `JSON.stringify` which is what we want.\n obj.propertyIsEnumerable = function() {\n return this.constructor.prototype.propertyIsEnumerable.apply(this, arguments);\n };\n obj.propertyIsEnumerable[UID_HASH_KEY] = hash;\n } else if (obj.nodeType !== undefined) {\n // At this point we couldn't get the IE `uniqueID` to use as a hash\n // and we couldn't use a non-enumerable property to exploit the\n // dontEnum bug so we simply add the `UID_HASH_KEY` on the node\n // itself.\n obj[UID_HASH_KEY] = hash;\n } else {\n throw new Error('Unable to set a non-enumerable property on object.');\n }\n\n return hash;\n }\n\n // Get references to ES5 object methods.\n var isExtensible = Object.isExtensible;\n\n // True if Object.defineProperty works as expected. IE8 fails this test.\n var canDefineProperty = (function() {\n try {\n Object.defineProperty({}, '@', {});\n return true;\n } catch (e) {\n return false;\n }\n }());\n\n // IE has a `uniqueID` property on DOM nodes. We can construct the hash from it\n // and avoid memory leaks from the IE cloneNode bug.\n function getIENodeHash(node) {\n if (node && node.nodeType > 0) {\n switch (node.nodeType) {\n case 1: // Element\n return node.uniqueID;\n case 9: // Document\n return node.documentElement && node.documentElement.uniqueID;\n }\n }\n }\n\n // If possible, use a WeakMap.\n var usingWeakMap = typeof WeakMap === 'function';\n var weakMap;\n if (usingWeakMap) {\n weakMap = new WeakMap();\n }\n\n var objHashUID = 0;\n\n var UID_HASH_KEY = '__immutablehash__';\n if (typeof Symbol === 'function') {\n UID_HASH_KEY = Symbol(UID_HASH_KEY);\n }\n\n var STRING_HASH_CACHE_MIN_STRLEN = 16;\n var STRING_HASH_CACHE_MAX_SIZE = 255;\n var STRING_HASH_CACHE_SIZE = 0;\n var stringHashCache = {};\n\n function assertNotInfinite(size) {\n invariant(\n size !== Infinity,\n 'Cannot perform this action with an infinite size.'\n );\n }\n\n createClass(Map, KeyedCollection);\n\n // @pragma Construction\n\n function Map(value) {\n return value === null || value === undefined ? emptyMap() :\n isMap(value) && !isOrdered(value) ? value :\n emptyMap().withMutations(function(map ) {\n var iter = KeyedIterable(value);\n assertNotInfinite(iter.size);\n iter.forEach(function(v, k) {return map.set(k, v)});\n });\n }\n\n Map.prototype.toString = function() {\n return this.__toString('Map {', '}');\n };\n\n // @pragma Access\n\n Map.prototype.get = function(k, notSetValue) {\n return this._root ?\n this._root.get(0, undefined, k, notSetValue) :\n notSetValue;\n };\n\n // @pragma Modification\n\n Map.prototype.set = function(k, v) {\n return updateMap(this, k, v);\n };\n\n Map.prototype.setIn = function(keyPath, v) {\n return this.updateIn(keyPath, NOT_SET, function() {return v});\n };\n\n Map.prototype.remove = function(k) {\n return updateMap(this, k, NOT_SET);\n };\n\n Map.prototype.deleteIn = function(keyPath) {\n return this.updateIn(keyPath, function() {return NOT_SET});\n };\n\n Map.prototype.update = function(k, notSetValue, updater) {\n return arguments.length === 1 ?\n k(this) :\n this.updateIn([k], notSetValue, updater);\n };\n\n Map.prototype.updateIn = function(keyPath, notSetValue, updater) {\n if (!updater) {\n updater = notSetValue;\n notSetValue = undefined;\n }\n var updatedValue = updateInDeepMap(\n this,\n forceIterator(keyPath),\n notSetValue,\n updater\n );\n return updatedValue === NOT_SET ? undefined : updatedValue;\n };\n\n Map.prototype.clear = function() {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = 0;\n this._root = null;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return emptyMap();\n };\n\n // @pragma Composition\n\n Map.prototype.merge = function(/*...iters*/) {\n return mergeIntoMapWith(this, undefined, arguments);\n };\n\n Map.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return mergeIntoMapWith(this, merger, iters);\n };\n\n Map.prototype.mergeIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);\n return this.updateIn(\n keyPath,\n emptyMap(),\n function(m ) {return typeof m.merge === 'function' ?\n m.merge.apply(m, iters) :\n iters[iters.length - 1]}\n );\n };\n\n Map.prototype.mergeDeep = function(/*...iters*/) {\n return mergeIntoMapWith(this, deepMerger, arguments);\n };\n\n Map.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return mergeIntoMapWith(this, deepMergerWith(merger), iters);\n };\n\n Map.prototype.mergeDeepIn = function(keyPath) {var iters = SLICE$0.call(arguments, 1);\n return this.updateIn(\n keyPath,\n emptyMap(),\n function(m ) {return typeof m.mergeDeep === 'function' ?\n m.mergeDeep.apply(m, iters) :\n iters[iters.length - 1]}\n );\n };\n\n Map.prototype.sort = function(comparator) {\n // Late binding\n return OrderedMap(sortFactory(this, comparator));\n };\n\n Map.prototype.sortBy = function(mapper, comparator) {\n // Late binding\n return OrderedMap(sortFactory(this, comparator, mapper));\n };\n\n // @pragma Mutability\n\n Map.prototype.withMutations = function(fn) {\n var mutable = this.asMutable();\n fn(mutable);\n return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;\n };\n\n Map.prototype.asMutable = function() {\n return this.__ownerID ? this : this.__ensureOwner(new OwnerID());\n };\n\n Map.prototype.asImmutable = function() {\n return this.__ensureOwner();\n };\n\n Map.prototype.wasAltered = function() {\n return this.__altered;\n };\n\n Map.prototype.__iterator = function(type, reverse) {\n return new MapIterator(this, type, reverse);\n };\n\n Map.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n var iterations = 0;\n this._root && this._root.iterate(function(entry ) {\n iterations++;\n return fn(entry[1], entry[0], this$0);\n }, reverse);\n return iterations;\n };\n\n Map.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n if (!ownerID) {\n this.__ownerID = ownerID;\n this.__altered = false;\n return this;\n }\n return makeMap(this.size, this._root, ownerID, this.__hash);\n };\n\n\n function isMap(maybeMap) {\n return !!(maybeMap && maybeMap[IS_MAP_SENTINEL]);\n }\n\n Map.isMap = isMap;\n\n var IS_MAP_SENTINEL = '@@__IMMUTABLE_MAP__@@';\n\n var MapPrototype = Map.prototype;\n MapPrototype[IS_MAP_SENTINEL] = true;\n MapPrototype[DELETE] = MapPrototype.remove;\n MapPrototype.removeIn = MapPrototype.deleteIn;\n\n\n // #pragma Trie Nodes\n\n\n\n function ArrayMapNode(ownerID, entries) {\n this.ownerID = ownerID;\n this.entries = entries;\n }\n\n ArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n var entries = this.entries;\n for (var ii = 0, len = entries.length; ii < len; ii++) {\n if (is(key, entries[ii][0])) {\n return entries[ii][1];\n }\n }\n return notSetValue;\n };\n\n ArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n var removed = value === NOT_SET;\n\n var entries = this.entries;\n var idx = 0;\n for (var len = entries.length; idx < len; idx++) {\n if (is(key, entries[idx][0])) {\n break;\n }\n }\n var exists = idx < len;\n\n if (exists ? entries[idx][1] === value : removed) {\n return this;\n }\n\n SetRef(didAlter);\n (removed || !exists) && SetRef(didChangeSize);\n\n if (removed && entries.length === 1) {\n return; // undefined\n }\n\n if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {\n return createNodes(ownerID, entries, key, value);\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newEntries = isEditable ? entries : arrCopy(entries);\n\n if (exists) {\n if (removed) {\n idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());\n } else {\n newEntries[idx] = [key, value];\n }\n } else {\n newEntries.push([key, value]);\n }\n\n if (isEditable) {\n this.entries = newEntries;\n return this;\n }\n\n return new ArrayMapNode(ownerID, newEntries);\n };\n\n\n\n\n function BitmapIndexedNode(ownerID, bitmap, nodes) {\n this.ownerID = ownerID;\n this.bitmap = bitmap;\n this.nodes = nodes;\n }\n\n BitmapIndexedNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var bit = (1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK));\n var bitmap = this.bitmap;\n return (bitmap & bit) === 0 ? notSetValue :\n this.nodes[popCount(bitmap & (bit - 1))].get(shift + SHIFT, keyHash, key, notSetValue);\n };\n\n BitmapIndexedNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n var bit = 1 << keyHashFrag;\n var bitmap = this.bitmap;\n var exists = (bitmap & bit) !== 0;\n\n if (!exists && value === NOT_SET) {\n return this;\n }\n\n var idx = popCount(bitmap & (bit - 1));\n var nodes = this.nodes;\n var node = exists ? nodes[idx] : undefined;\n var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);\n\n if (newNode === node) {\n return this;\n }\n\n if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {\n return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);\n }\n\n if (exists && !newNode && nodes.length === 2 && isLeafNode(nodes[idx ^ 1])) {\n return nodes[idx ^ 1];\n }\n\n if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {\n return newNode;\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newBitmap = exists ? newNode ? bitmap : bitmap ^ bit : bitmap | bit;\n var newNodes = exists ? newNode ?\n setIn(nodes, idx, newNode, isEditable) :\n spliceOut(nodes, idx, isEditable) :\n spliceIn(nodes, idx, newNode, isEditable);\n\n if (isEditable) {\n this.bitmap = newBitmap;\n this.nodes = newNodes;\n return this;\n }\n\n return new BitmapIndexedNode(ownerID, newBitmap, newNodes);\n };\n\n\n\n\n function HashArrayMapNode(ownerID, count, nodes) {\n this.ownerID = ownerID;\n this.count = count;\n this.nodes = nodes;\n }\n\n HashArrayMapNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n var node = this.nodes[idx];\n return node ? node.get(shift + SHIFT, keyHash, key, notSetValue) : notSetValue;\n };\n\n HashArrayMapNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n var removed = value === NOT_SET;\n var nodes = this.nodes;\n var node = nodes[idx];\n\n if (removed && !node) {\n return this;\n }\n\n var newNode = updateNode(node, ownerID, shift + SHIFT, keyHash, key, value, didChangeSize, didAlter);\n if (newNode === node) {\n return this;\n }\n\n var newCount = this.count;\n if (!node) {\n newCount++;\n } else if (!newNode) {\n newCount--;\n if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {\n return packNodes(ownerID, nodes, newCount, idx);\n }\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newNodes = setIn(nodes, idx, newNode, isEditable);\n\n if (isEditable) {\n this.count = newCount;\n this.nodes = newNodes;\n return this;\n }\n\n return new HashArrayMapNode(ownerID, newCount, newNodes);\n };\n\n\n\n\n function HashCollisionNode(ownerID, keyHash, entries) {\n this.ownerID = ownerID;\n this.keyHash = keyHash;\n this.entries = entries;\n }\n\n HashCollisionNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n var entries = this.entries;\n for (var ii = 0, len = entries.length; ii < len; ii++) {\n if (is(key, entries[ii][0])) {\n return entries[ii][1];\n }\n }\n return notSetValue;\n };\n\n HashCollisionNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n\n var removed = value === NOT_SET;\n\n if (keyHash !== this.keyHash) {\n if (removed) {\n return this;\n }\n SetRef(didAlter);\n SetRef(didChangeSize);\n return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);\n }\n\n var entries = this.entries;\n var idx = 0;\n for (var len = entries.length; idx < len; idx++) {\n if (is(key, entries[idx][0])) {\n break;\n }\n }\n var exists = idx < len;\n\n if (exists ? entries[idx][1] === value : removed) {\n return this;\n }\n\n SetRef(didAlter);\n (removed || !exists) && SetRef(didChangeSize);\n\n if (removed && len === 2) {\n return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newEntries = isEditable ? entries : arrCopy(entries);\n\n if (exists) {\n if (removed) {\n idx === len - 1 ? newEntries.pop() : (newEntries[idx] = newEntries.pop());\n } else {\n newEntries[idx] = [key, value];\n }\n } else {\n newEntries.push([key, value]);\n }\n\n if (isEditable) {\n this.entries = newEntries;\n return this;\n }\n\n return new HashCollisionNode(ownerID, this.keyHash, newEntries);\n };\n\n\n\n\n function ValueNode(ownerID, keyHash, entry) {\n this.ownerID = ownerID;\n this.keyHash = keyHash;\n this.entry = entry;\n }\n\n ValueNode.prototype.get = function(shift, keyHash, key, notSetValue) {\n return is(key, this.entry[0]) ? this.entry[1] : notSetValue;\n };\n\n ValueNode.prototype.update = function(ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n var removed = value === NOT_SET;\n var keyMatch = is(key, this.entry[0]);\n if (keyMatch ? value === this.entry[1] : removed) {\n return this;\n }\n\n SetRef(didAlter);\n\n if (removed) {\n SetRef(didChangeSize);\n return; // undefined\n }\n\n if (keyMatch) {\n if (ownerID && ownerID === this.ownerID) {\n this.entry[1] = value;\n return this;\n }\n return new ValueNode(ownerID, this.keyHash, [key, value]);\n }\n\n SetRef(didChangeSize);\n return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);\n };\n\n\n\n // #pragma Iterators\n\n ArrayMapNode.prototype.iterate =\n HashCollisionNode.prototype.iterate = function (fn, reverse) {\n var entries = this.entries;\n for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {\n if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {\n return false;\n }\n }\n }\n\n BitmapIndexedNode.prototype.iterate =\n HashArrayMapNode.prototype.iterate = function (fn, reverse) {\n var nodes = this.nodes;\n for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {\n var node = nodes[reverse ? maxIndex - ii : ii];\n if (node && node.iterate(fn, reverse) === false) {\n return false;\n }\n }\n }\n\n ValueNode.prototype.iterate = function (fn, reverse) {\n return fn(this.entry);\n }\n\n createClass(MapIterator, Iterator);\n\n function MapIterator(map, type, reverse) {\n this._type = type;\n this._reverse = reverse;\n this._stack = map._root && mapIteratorFrame(map._root);\n }\n\n MapIterator.prototype.next = function() {\n var type = this._type;\n var stack = this._stack;\n while (stack) {\n var node = stack.node;\n var index = stack.index++;\n var maxIndex;\n if (node.entry) {\n if (index === 0) {\n return mapIteratorValue(type, node.entry);\n }\n } else if (node.entries) {\n maxIndex = node.entries.length - 1;\n if (index <= maxIndex) {\n return mapIteratorValue(type, node.entries[this._reverse ? maxIndex - index : index]);\n }\n } else {\n maxIndex = node.nodes.length - 1;\n if (index <= maxIndex) {\n var subNode = node.nodes[this._reverse ? maxIndex - index : index];\n if (subNode) {\n if (subNode.entry) {\n return mapIteratorValue(type, subNode.entry);\n }\n stack = this._stack = mapIteratorFrame(subNode, stack);\n }\n continue;\n }\n }\n stack = this._stack = this._stack.__prev;\n }\n return iteratorDone();\n };\n\n\n function mapIteratorValue(type, entry) {\n return iteratorValue(type, entry[0], entry[1]);\n }\n\n function mapIteratorFrame(node, prev) {\n return {\n node: node,\n index: 0,\n __prev: prev\n };\n }\n\n function makeMap(size, root, ownerID, hash) {\n var map = Object.create(MapPrototype);\n map.size = size;\n map._root = root;\n map.__ownerID = ownerID;\n map.__hash = hash;\n map.__altered = false;\n return map;\n }\n\n var EMPTY_MAP;\n function emptyMap() {\n return EMPTY_MAP || (EMPTY_MAP = makeMap(0));\n }\n\n function updateMap(map, k, v) {\n var newRoot;\n var newSize;\n if (!map._root) {\n if (v === NOT_SET) {\n return map;\n }\n newSize = 1;\n newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);\n } else {\n var didChangeSize = MakeRef(CHANGE_LENGTH);\n var didAlter = MakeRef(DID_ALTER);\n newRoot = updateNode(map._root, map.__ownerID, 0, undefined, k, v, didChangeSize, didAlter);\n if (!didAlter.value) {\n return map;\n }\n newSize = map.size + (didChangeSize.value ? v === NOT_SET ? -1 : 1 : 0);\n }\n if (map.__ownerID) {\n map.size = newSize;\n map._root = newRoot;\n map.__hash = undefined;\n map.__altered = true;\n return map;\n }\n return newRoot ? makeMap(newSize, newRoot) : emptyMap();\n }\n\n function updateNode(node, ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (!node) {\n if (value === NOT_SET) {\n return node;\n }\n SetRef(didAlter);\n SetRef(didChangeSize);\n return new ValueNode(ownerID, keyHash, [key, value]);\n }\n return node.update(ownerID, shift, keyHash, key, value, didChangeSize, didAlter);\n }\n\n function isLeafNode(node) {\n return node.constructor === ValueNode || node.constructor === HashCollisionNode;\n }\n\n function mergeIntoNode(node, ownerID, shift, keyHash, entry) {\n if (node.keyHash === keyHash) {\n return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);\n }\n\n var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;\n var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n\n var newNode;\n var nodes = idx1 === idx2 ?\n [mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)] :\n ((newNode = new ValueNode(ownerID, keyHash, entry)), idx1 < idx2 ? [node, newNode] : [newNode, node]);\n\n return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);\n }\n\n function createNodes(ownerID, entries, key, value) {\n if (!ownerID) {\n ownerID = new OwnerID();\n }\n var node = new ValueNode(ownerID, hash(key), [key, value]);\n for (var ii = 0; ii < entries.length; ii++) {\n var entry = entries[ii];\n node = node.update(ownerID, 0, undefined, entry[0], entry[1]);\n }\n return node;\n }\n\n function packNodes(ownerID, nodes, count, excluding) {\n var bitmap = 0;\n var packedII = 0;\n var packedNodes = new Array(count);\n for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {\n var node = nodes[ii];\n if (node !== undefined && ii !== excluding) {\n bitmap |= bit;\n packedNodes[packedII++] = node;\n }\n }\n return new BitmapIndexedNode(ownerID, bitmap, packedNodes);\n }\n\n function expandNodes(ownerID, nodes, bitmap, including, node) {\n var count = 0;\n var expandedNodes = new Array(SIZE);\n for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {\n expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;\n }\n expandedNodes[including] = node;\n return new HashArrayMapNode(ownerID, count + 1, expandedNodes);\n }\n\n function mergeIntoMapWith(map, merger, iterables) {\n var iters = [];\n for (var ii = 0; ii < iterables.length; ii++) {\n var value = iterables[ii];\n var iter = KeyedIterable(value);\n if (!isIterable(value)) {\n iter = iter.map(function(v ) {return fromJS(v)});\n }\n iters.push(iter);\n }\n return mergeIntoCollectionWith(map, merger, iters);\n }\n\n function deepMerger(existing, value, key) {\n return existing && existing.mergeDeep && isIterable(value) ?\n existing.mergeDeep(value) :\n is(existing, value) ? existing : value;\n }\n\n function deepMergerWith(merger) {\n return function(existing, value, key) {\n if (existing && existing.mergeDeepWith && isIterable(value)) {\n return existing.mergeDeepWith(merger, value);\n }\n var nextValue = merger(existing, value, key);\n return is(existing, nextValue) ? existing : nextValue;\n };\n }\n\n function mergeIntoCollectionWith(collection, merger, iters) {\n iters = iters.filter(function(x ) {return x.size !== 0});\n if (iters.length === 0) {\n return collection;\n }\n if (collection.size === 0 && !collection.__ownerID && iters.length === 1) {\n return collection.constructor(iters[0]);\n }\n return collection.withMutations(function(collection ) {\n var mergeIntoMap = merger ?\n function(value, key) {\n collection.update(key, NOT_SET, function(existing )\n {return existing === NOT_SET ? value : merger(existing, value, key)}\n );\n } :\n function(value, key) {\n collection.set(key, value);\n }\n for (var ii = 0; ii < iters.length; ii++) {\n iters[ii].forEach(mergeIntoMap);\n }\n });\n }\n\n function updateInDeepMap(existing, keyPathIter, notSetValue, updater) {\n var isNotSet = existing === NOT_SET;\n var step = keyPathIter.next();\n if (step.done) {\n var existingValue = isNotSet ? notSetValue : existing;\n var newValue = updater(existingValue);\n return newValue === existingValue ? existing : newValue;\n }\n invariant(\n isNotSet || (existing && existing.set),\n 'invalid keyPath'\n );\n var key = step.value;\n var nextExisting = isNotSet ? NOT_SET : existing.get(key, NOT_SET);\n var nextUpdated = updateInDeepMap(\n nextExisting,\n keyPathIter,\n notSetValue,\n updater\n );\n return nextUpdated === nextExisting ? existing :\n nextUpdated === NOT_SET ? existing.remove(key) :\n (isNotSet ? emptyMap() : existing).set(key, nextUpdated);\n }\n\n function popCount(x) {\n x = x - ((x >> 1) & 0x55555555);\n x = (x & 0x33333333) + ((x >> 2) & 0x33333333);\n x = (x + (x >> 4)) & 0x0f0f0f0f;\n x = x + (x >> 8);\n x = x + (x >> 16);\n return x & 0x7f;\n }\n\n function setIn(array, idx, val, canEdit) {\n var newArray = canEdit ? array : arrCopy(array);\n newArray[idx] = val;\n return newArray;\n }\n\n function spliceIn(array, idx, val, canEdit) {\n var newLen = array.length + 1;\n if (canEdit && idx + 1 === newLen) {\n array[idx] = val;\n return array;\n }\n var newArray = new Array(newLen);\n var after = 0;\n for (var ii = 0; ii < newLen; ii++) {\n if (ii === idx) {\n newArray[ii] = val;\n after = -1;\n } else {\n newArray[ii] = array[ii + after];\n }\n }\n return newArray;\n }\n\n function spliceOut(array, idx, canEdit) {\n var newLen = array.length - 1;\n if (canEdit && idx === newLen) {\n array.pop();\n return array;\n }\n var newArray = new Array(newLen);\n var after = 0;\n for (var ii = 0; ii < newLen; ii++) {\n if (ii === idx) {\n after = 1;\n }\n newArray[ii] = array[ii + after];\n }\n return newArray;\n }\n\n var MAX_ARRAY_MAP_SIZE = SIZE / 4;\n var MAX_BITMAP_INDEXED_SIZE = SIZE / 2;\n var MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;\n\n createClass(List, IndexedCollection);\n\n // @pragma Construction\n\n function List(value) {\n var empty = emptyList();\n if (value === null || value === undefined) {\n return empty;\n }\n if (isList(value)) {\n return value;\n }\n var iter = IndexedIterable(value);\n var size = iter.size;\n if (size === 0) {\n return empty;\n }\n assertNotInfinite(size);\n if (size > 0 && size < SIZE) {\n return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));\n }\n return empty.withMutations(function(list ) {\n list.setSize(size);\n iter.forEach(function(v, i) {return list.set(i, v)});\n });\n }\n\n List.of = function(/*...values*/) {\n return this(arguments);\n };\n\n List.prototype.toString = function() {\n return this.__toString('List [', ']');\n };\n\n // @pragma Access\n\n List.prototype.get = function(index, notSetValue) {\n index = wrapIndex(this, index);\n if (index >= 0 && index < this.size) {\n index += this._origin;\n var node = listNodeFor(this, index);\n return node && node.array[index & MASK];\n }\n return notSetValue;\n };\n\n // @pragma Modification\n\n List.prototype.set = function(index, value) {\n return updateList(this, index, value);\n };\n\n List.prototype.remove = function(index) {\n return !this.has(index) ? this :\n index === 0 ? this.shift() :\n index === this.size - 1 ? this.pop() :\n this.splice(index, 1);\n };\n\n List.prototype.insert = function(index, value) {\n return this.splice(index, 0, value);\n };\n\n List.prototype.clear = function() {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = this._origin = this._capacity = 0;\n this._level = SHIFT;\n this._root = this._tail = null;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return emptyList();\n };\n\n List.prototype.push = function(/*...values*/) {\n var values = arguments;\n var oldSize = this.size;\n return this.withMutations(function(list ) {\n setListBounds(list, 0, oldSize + values.length);\n for (var ii = 0; ii < values.length; ii++) {\n list.set(oldSize + ii, values[ii]);\n }\n });\n };\n\n List.prototype.pop = function() {\n return setListBounds(this, 0, -1);\n };\n\n List.prototype.unshift = function(/*...values*/) {\n var values = arguments;\n return this.withMutations(function(list ) {\n setListBounds(list, -values.length);\n for (var ii = 0; ii < values.length; ii++) {\n list.set(ii, values[ii]);\n }\n });\n };\n\n List.prototype.shift = function() {\n return setListBounds(this, 1);\n };\n\n // @pragma Composition\n\n List.prototype.merge = function(/*...iters*/) {\n return mergeIntoListWith(this, undefined, arguments);\n };\n\n List.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return mergeIntoListWith(this, merger, iters);\n };\n\n List.prototype.mergeDeep = function(/*...iters*/) {\n return mergeIntoListWith(this, deepMerger, arguments);\n };\n\n List.prototype.mergeDeepWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return mergeIntoListWith(this, deepMergerWith(merger), iters);\n };\n\n List.prototype.setSize = function(size) {\n return setListBounds(this, 0, size);\n };\n\n // @pragma Iteration\n\n List.prototype.slice = function(begin, end) {\n var size = this.size;\n if (wholeSlice(begin, end, size)) {\n return this;\n }\n return setListBounds(\n this,\n resolveBegin(begin, size),\n resolveEnd(end, size)\n );\n };\n\n List.prototype.__iterator = function(type, reverse) {\n var index = 0;\n var values = iterateList(this, reverse);\n return new Iterator(function() {\n var value = values();\n return value === DONE ?\n iteratorDone() :\n iteratorValue(type, index++, value);\n });\n };\n\n List.prototype.__iterate = function(fn, reverse) {\n var index = 0;\n var values = iterateList(this, reverse);\n var value;\n while ((value = values()) !== DONE) {\n if (fn(value, index++, this) === false) {\n break;\n }\n }\n return index;\n };\n\n List.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n if (!ownerID) {\n this.__ownerID = ownerID;\n return this;\n }\n return makeList(this._origin, this._capacity, this._level, this._root, this._tail, ownerID, this.__hash);\n };\n\n\n function isList(maybeList) {\n return !!(maybeList && maybeList[IS_LIST_SENTINEL]);\n }\n\n List.isList = isList;\n\n var IS_LIST_SENTINEL = '@@__IMMUTABLE_LIST__@@';\n\n var ListPrototype = List.prototype;\n ListPrototype[IS_LIST_SENTINEL] = true;\n ListPrototype[DELETE] = ListPrototype.remove;\n ListPrototype.setIn = MapPrototype.setIn;\n ListPrototype.deleteIn =\n ListPrototype.removeIn = MapPrototype.removeIn;\n ListPrototype.update = MapPrototype.update;\n ListPrototype.updateIn = MapPrototype.updateIn;\n ListPrototype.mergeIn = MapPrototype.mergeIn;\n ListPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;\n ListPrototype.withMutations = MapPrototype.withMutations;\n ListPrototype.asMutable = MapPrototype.asMutable;\n ListPrototype.asImmutable = MapPrototype.asImmutable;\n ListPrototype.wasAltered = MapPrototype.wasAltered;\n\n\n\n function VNode(array, ownerID) {\n this.array = array;\n this.ownerID = ownerID;\n }\n\n // TODO: seems like these methods are very similar\n\n VNode.prototype.removeBefore = function(ownerID, level, index) {\n if (index === level ? 1 << level : 0 || this.array.length === 0) {\n return this;\n }\n var originIndex = (index >>> level) & MASK;\n if (originIndex >= this.array.length) {\n return new VNode([], ownerID);\n }\n var removingFirst = originIndex === 0;\n var newChild;\n if (level > 0) {\n var oldChild = this.array[originIndex];\n newChild = oldChild && oldChild.removeBefore(ownerID, level - SHIFT, index);\n if (newChild === oldChild && removingFirst) {\n return this;\n }\n }\n if (removingFirst && !newChild) {\n return this;\n }\n var editable = editableVNode(this, ownerID);\n if (!removingFirst) {\n for (var ii = 0; ii < originIndex; ii++) {\n editable.array[ii] = undefined;\n }\n }\n if (newChild) {\n editable.array[originIndex] = newChild;\n }\n return editable;\n };\n\n VNode.prototype.removeAfter = function(ownerID, level, index) {\n if (index === (level ? 1 << level : 0) || this.array.length === 0) {\n return this;\n }\n var sizeIndex = ((index - 1) >>> level) & MASK;\n if (sizeIndex >= this.array.length) {\n return this;\n }\n\n var newChild;\n if (level > 0) {\n var oldChild = this.array[sizeIndex];\n newChild = oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);\n if (newChild === oldChild && sizeIndex === this.array.length - 1) {\n return this;\n }\n }\n\n var editable = editableVNode(this, ownerID);\n editable.array.splice(sizeIndex + 1);\n if (newChild) {\n editable.array[sizeIndex] = newChild;\n }\n return editable;\n };\n\n\n\n var DONE = {};\n\n function iterateList(list, reverse) {\n var left = list._origin;\n var right = list._capacity;\n var tailPos = getTailOffset(right);\n var tail = list._tail;\n\n return iterateNodeOrLeaf(list._root, list._level, 0);\n\n function iterateNodeOrLeaf(node, level, offset) {\n return level === 0 ?\n iterateLeaf(node, offset) :\n iterateNode(node, level, offset);\n }\n\n function iterateLeaf(node, offset) {\n var array = offset === tailPos ? tail && tail.array : node && node.array;\n var from = offset > left ? 0 : left - offset;\n var to = right - offset;\n if (to > SIZE) {\n to = SIZE;\n }\n return function() {\n if (from === to) {\n return DONE;\n }\n var idx = reverse ? --to : from++;\n return array && array[idx];\n };\n }\n\n function iterateNode(node, level, offset) {\n var values;\n var array = node && node.array;\n var from = offset > left ? 0 : (left - offset) >> level;\n var to = ((right - offset) >> level) + 1;\n if (to > SIZE) {\n to = SIZE;\n }\n return function() {\n do {\n if (values) {\n var value = values();\n if (value !== DONE) {\n return value;\n }\n values = null;\n }\n if (from === to) {\n return DONE;\n }\n var idx = reverse ? --to : from++;\n values = iterateNodeOrLeaf(\n array && array[idx], level - SHIFT, offset + (idx << level)\n );\n } while (true);\n };\n }\n }\n\n function makeList(origin, capacity, level, root, tail, ownerID, hash) {\n var list = Object.create(ListPrototype);\n list.size = capacity - origin;\n list._origin = origin;\n list._capacity = capacity;\n list._level = level;\n list._root = root;\n list._tail = tail;\n list.__ownerID = ownerID;\n list.__hash = hash;\n list.__altered = false;\n return list;\n }\n\n var EMPTY_LIST;\n function emptyList() {\n return EMPTY_LIST || (EMPTY_LIST = makeList(0, 0, SHIFT));\n }\n\n function updateList(list, index, value) {\n index = wrapIndex(list, index);\n\n if (index !== index) {\n return list;\n }\n\n if (index >= list.size || index < 0) {\n return list.withMutations(function(list ) {\n index < 0 ?\n setListBounds(list, index).set(0, value) :\n setListBounds(list, 0, index + 1).set(index, value)\n });\n }\n\n index += list._origin;\n\n var newTail = list._tail;\n var newRoot = list._root;\n var didAlter = MakeRef(DID_ALTER);\n if (index >= getTailOffset(list._capacity)) {\n newTail = updateVNode(newTail, list.__ownerID, 0, index, value, didAlter);\n } else {\n newRoot = updateVNode(newRoot, list.__ownerID, list._level, index, value, didAlter);\n }\n\n if (!didAlter.value) {\n return list;\n }\n\n if (list.__ownerID) {\n list._root = newRoot;\n list._tail = newTail;\n list.__hash = undefined;\n list.__altered = true;\n return list;\n }\n return makeList(list._origin, list._capacity, list._level, newRoot, newTail);\n }\n\n function updateVNode(node, ownerID, level, index, value, didAlter) {\n var idx = (index >>> level) & MASK;\n var nodeHas = node && idx < node.array.length;\n if (!nodeHas && value === undefined) {\n return node;\n }\n\n var newNode;\n\n if (level > 0) {\n var lowerNode = node && node.array[idx];\n var newLowerNode = updateVNode(lowerNode, ownerID, level - SHIFT, index, value, didAlter);\n if (newLowerNode === lowerNode) {\n return node;\n }\n newNode = editableVNode(node, ownerID);\n newNode.array[idx] = newLowerNode;\n return newNode;\n }\n\n if (nodeHas && node.array[idx] === value) {\n return node;\n }\n\n SetRef(didAlter);\n\n newNode = editableVNode(node, ownerID);\n if (value === undefined && idx === newNode.array.length - 1) {\n newNode.array.pop();\n } else {\n newNode.array[idx] = value;\n }\n return newNode;\n }\n\n function editableVNode(node, ownerID) {\n if (ownerID && node && ownerID === node.ownerID) {\n return node;\n }\n return new VNode(node ? node.array.slice() : [], ownerID);\n }\n\n function listNodeFor(list, rawIndex) {\n if (rawIndex >= getTailOffset(list._capacity)) {\n return list._tail;\n }\n if (rawIndex < 1 << (list._level + SHIFT)) {\n var node = list._root;\n var level = list._level;\n while (node && level > 0) {\n node = node.array[(rawIndex >>> level) & MASK];\n level -= SHIFT;\n }\n return node;\n }\n }\n\n function setListBounds(list, begin, end) {\n // Sanitize begin & end using this shorthand for ToInt32(argument)\n // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32\n if (begin !== undefined) {\n begin = begin | 0;\n }\n if (end !== undefined) {\n end = end | 0;\n }\n var owner = list.__ownerID || new OwnerID();\n var oldOrigin = list._origin;\n var oldCapacity = list._capacity;\n var newOrigin = oldOrigin + begin;\n var newCapacity = end === undefined ? oldCapacity : end < 0 ? oldCapacity + end : oldOrigin + end;\n if (newOrigin === oldOrigin && newCapacity === oldCapacity) {\n return list;\n }\n\n // If it's going to end after it starts, it's empty.\n if (newOrigin >= newCapacity) {\n return list.clear();\n }\n\n var newLevel = list._level;\n var newRoot = list._root;\n\n // New origin might need creating a higher root.\n var offsetShift = 0;\n while (newOrigin + offsetShift < 0) {\n newRoot = new VNode(newRoot && newRoot.array.length ? [undefined, newRoot] : [], owner);\n newLevel += SHIFT;\n offsetShift += 1 << newLevel;\n }\n if (offsetShift) {\n newOrigin += offsetShift;\n oldOrigin += offsetShift;\n newCapacity += offsetShift;\n oldCapacity += offsetShift;\n }\n\n var oldTailOffset = getTailOffset(oldCapacity);\n var newTailOffset = getTailOffset(newCapacity);\n\n // New size might need creating a higher root.\n while (newTailOffset >= 1 << (newLevel + SHIFT)) {\n newRoot = new VNode(newRoot && newRoot.array.length ? [newRoot] : [], owner);\n newLevel += SHIFT;\n }\n\n // Locate or create the new tail.\n var oldTail = list._tail;\n var newTail = newTailOffset < oldTailOffset ?\n listNodeFor(list, newCapacity - 1) :\n newTailOffset > oldTailOffset ? new VNode([], owner) : oldTail;\n\n // Merge Tail into tree.\n if (oldTail && newTailOffset > oldTailOffset && newOrigin < oldCapacity && oldTail.array.length) {\n newRoot = editableVNode(newRoot, owner);\n var node = newRoot;\n for (var level = newLevel; level > SHIFT; level -= SHIFT) {\n var idx = (oldTailOffset >>> level) & MASK;\n node = node.array[idx] = editableVNode(node.array[idx], owner);\n }\n node.array[(oldTailOffset >>> SHIFT) & MASK] = oldTail;\n }\n\n // If the size has been reduced, there's a chance the tail needs to be trimmed.\n if (newCapacity < oldCapacity) {\n newTail = newTail && newTail.removeAfter(owner, 0, newCapacity);\n }\n\n // If the new origin is within the tail, then we do not need a root.\n if (newOrigin >= newTailOffset) {\n newOrigin -= newTailOffset;\n newCapacity -= newTailOffset;\n newLevel = SHIFT;\n newRoot = null;\n newTail = newTail && newTail.removeBefore(owner, 0, newOrigin);\n\n // Otherwise, if the root has been trimmed, garbage collect.\n } else if (newOrigin > oldOrigin || newTailOffset < oldTailOffset) {\n offsetShift = 0;\n\n // Identify the new top root node of the subtree of the old root.\n while (newRoot) {\n var beginIndex = (newOrigin >>> newLevel) & MASK;\n if (beginIndex !== (newTailOffset >>> newLevel) & MASK) {\n break;\n }\n if (beginIndex) {\n offsetShift += (1 << newLevel) * beginIndex;\n }\n newLevel -= SHIFT;\n newRoot = newRoot.array[beginIndex];\n }\n\n // Trim the new sides of the new root.\n if (newRoot && newOrigin > oldOrigin) {\n newRoot = newRoot.removeBefore(owner, newLevel, newOrigin - offsetShift);\n }\n if (newRoot && newTailOffset < oldTailOffset) {\n newRoot = newRoot.removeAfter(owner, newLevel, newTailOffset - offsetShift);\n }\n if (offsetShift) {\n newOrigin -= offsetShift;\n newCapacity -= offsetShift;\n }\n }\n\n if (list.__ownerID) {\n list.size = newCapacity - newOrigin;\n list._origin = newOrigin;\n list._capacity = newCapacity;\n list._level = newLevel;\n list._root = newRoot;\n list._tail = newTail;\n list.__hash = undefined;\n list.__altered = true;\n return list;\n }\n return makeList(newOrigin, newCapacity, newLevel, newRoot, newTail);\n }\n\n function mergeIntoListWith(list, merger, iterables) {\n var iters = [];\n var maxSize = 0;\n for (var ii = 0; ii < iterables.length; ii++) {\n var value = iterables[ii];\n var iter = IndexedIterable(value);\n if (iter.size > maxSize) {\n maxSize = iter.size;\n }\n if (!isIterable(value)) {\n iter = iter.map(function(v ) {return fromJS(v)});\n }\n iters.push(iter);\n }\n if (maxSize > list.size) {\n list = list.setSize(maxSize);\n }\n return mergeIntoCollectionWith(list, merger, iters);\n }\n\n function getTailOffset(size) {\n return size < SIZE ? 0 : (((size - 1) >>> SHIFT) << SHIFT);\n }\n\n createClass(OrderedMap, Map);\n\n // @pragma Construction\n\n function OrderedMap(value) {\n return value === null || value === undefined ? emptyOrderedMap() :\n isOrderedMap(value) ? value :\n emptyOrderedMap().withMutations(function(map ) {\n var iter = KeyedIterable(value);\n assertNotInfinite(iter.size);\n iter.forEach(function(v, k) {return map.set(k, v)});\n });\n }\n\n OrderedMap.of = function(/*...values*/) {\n return this(arguments);\n };\n\n OrderedMap.prototype.toString = function() {\n return this.__toString('OrderedMap {', '}');\n };\n\n // @pragma Access\n\n OrderedMap.prototype.get = function(k, notSetValue) {\n var index = this._map.get(k);\n return index !== undefined ? this._list.get(index)[1] : notSetValue;\n };\n\n // @pragma Modification\n\n OrderedMap.prototype.clear = function() {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = 0;\n this._map.clear();\n this._list.clear();\n return this;\n }\n return emptyOrderedMap();\n };\n\n OrderedMap.prototype.set = function(k, v) {\n return updateOrderedMap(this, k, v);\n };\n\n OrderedMap.prototype.remove = function(k) {\n return updateOrderedMap(this, k, NOT_SET);\n };\n\n OrderedMap.prototype.wasAltered = function() {\n return this._map.wasAltered() || this._list.wasAltered();\n };\n\n OrderedMap.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return this._list.__iterate(\n function(entry ) {return entry && fn(entry[1], entry[0], this$0)},\n reverse\n );\n };\n\n OrderedMap.prototype.__iterator = function(type, reverse) {\n return this._list.fromEntrySeq().__iterator(type, reverse);\n };\n\n OrderedMap.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n var newMap = this._map.__ensureOwner(ownerID);\n var newList = this._list.__ensureOwner(ownerID);\n if (!ownerID) {\n this.__ownerID = ownerID;\n this._map = newMap;\n this._list = newList;\n return this;\n }\n return makeOrderedMap(newMap, newList, ownerID, this.__hash);\n };\n\n\n function isOrderedMap(maybeOrderedMap) {\n return isMap(maybeOrderedMap) && isOrdered(maybeOrderedMap);\n }\n\n OrderedMap.isOrderedMap = isOrderedMap;\n\n OrderedMap.prototype[IS_ORDERED_SENTINEL] = true;\n OrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;\n\n\n\n function makeOrderedMap(map, list, ownerID, hash) {\n var omap = Object.create(OrderedMap.prototype);\n omap.size = map ? map.size : 0;\n omap._map = map;\n omap._list = list;\n omap.__ownerID = ownerID;\n omap.__hash = hash;\n return omap;\n }\n\n var EMPTY_ORDERED_MAP;\n function emptyOrderedMap() {\n return EMPTY_ORDERED_MAP || (EMPTY_ORDERED_MAP = makeOrderedMap(emptyMap(), emptyList()));\n }\n\n function updateOrderedMap(omap, k, v) {\n var map = omap._map;\n var list = omap._list;\n var i = map.get(k);\n var has = i !== undefined;\n var newMap;\n var newList;\n if (v === NOT_SET) { // removed\n if (!has) {\n return omap;\n }\n if (list.size >= SIZE && list.size >= map.size * 2) {\n newList = list.filter(function(entry, idx) {return entry !== undefined && i !== idx});\n newMap = newList.toKeyedSeq().map(function(entry ) {return entry[0]}).flip().toMap();\n if (omap.__ownerID) {\n newMap.__ownerID = newList.__ownerID = omap.__ownerID;\n }\n } else {\n newMap = map.remove(k);\n newList = i === list.size - 1 ? list.pop() : list.set(i, undefined);\n }\n } else {\n if (has) {\n if (v === list.get(i)[1]) {\n return omap;\n }\n newMap = map;\n newList = list.set(i, [k, v]);\n } else {\n newMap = map.set(k, list.size);\n newList = list.set(list.size, [k, v]);\n }\n }\n if (omap.__ownerID) {\n omap.size = newMap.size;\n omap._map = newMap;\n omap._list = newList;\n omap.__hash = undefined;\n return omap;\n }\n return makeOrderedMap(newMap, newList);\n }\n\n createClass(ToKeyedSequence, KeyedSeq);\n function ToKeyedSequence(indexed, useKeys) {\n this._iter = indexed;\n this._useKeys = useKeys;\n this.size = indexed.size;\n }\n\n ToKeyedSequence.prototype.get = function(key, notSetValue) {\n return this._iter.get(key, notSetValue);\n };\n\n ToKeyedSequence.prototype.has = function(key) {\n return this._iter.has(key);\n };\n\n ToKeyedSequence.prototype.valueSeq = function() {\n return this._iter.valueSeq();\n };\n\n ToKeyedSequence.prototype.reverse = function() {var this$0 = this;\n var reversedSequence = reverseFactory(this, true);\n if (!this._useKeys) {\n reversedSequence.valueSeq = function() {return this$0._iter.toSeq().reverse()};\n }\n return reversedSequence;\n };\n\n ToKeyedSequence.prototype.map = function(mapper, context) {var this$0 = this;\n var mappedSequence = mapFactory(this, mapper, context);\n if (!this._useKeys) {\n mappedSequence.valueSeq = function() {return this$0._iter.toSeq().map(mapper, context)};\n }\n return mappedSequence;\n };\n\n ToKeyedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n var ii;\n return this._iter.__iterate(\n this._useKeys ?\n function(v, k) {return fn(v, k, this$0)} :\n ((ii = reverse ? resolveSize(this) : 0),\n function(v ) {return fn(v, reverse ? --ii : ii++, this$0)}),\n reverse\n );\n };\n\n ToKeyedSequence.prototype.__iterator = function(type, reverse) {\n if (this._useKeys) {\n return this._iter.__iterator(type, reverse);\n }\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n var ii = reverse ? resolveSize(this) : 0;\n return new Iterator(function() {\n var step = iterator.next();\n return step.done ? step :\n iteratorValue(type, reverse ? --ii : ii++, step.value, step);\n });\n };\n\n ToKeyedSequence.prototype[IS_ORDERED_SENTINEL] = true;\n\n\n createClass(ToIndexedSequence, IndexedSeq);\n function ToIndexedSequence(iter) {\n this._iter = iter;\n this.size = iter.size;\n }\n\n ToIndexedSequence.prototype.includes = function(value) {\n return this._iter.includes(value);\n };\n\n ToIndexedSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n var iterations = 0;\n return this._iter.__iterate(function(v ) {return fn(v, iterations++, this$0)}, reverse);\n };\n\n ToIndexedSequence.prototype.__iterator = function(type, reverse) {\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n var iterations = 0;\n return new Iterator(function() {\n var step = iterator.next();\n return step.done ? step :\n iteratorValue(type, iterations++, step.value, step)\n });\n };\n\n\n\n createClass(ToSetSequence, SetSeq);\n function ToSetSequence(iter) {\n this._iter = iter;\n this.size = iter.size;\n }\n\n ToSetSequence.prototype.has = function(key) {\n return this._iter.includes(key);\n };\n\n ToSetSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return this._iter.__iterate(function(v ) {return fn(v, v, this$0)}, reverse);\n };\n\n ToSetSequence.prototype.__iterator = function(type, reverse) {\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n return new Iterator(function() {\n var step = iterator.next();\n return step.done ? step :\n iteratorValue(type, step.value, step.value, step);\n });\n };\n\n\n\n createClass(FromEntriesSequence, KeyedSeq);\n function FromEntriesSequence(entries) {\n this._iter = entries;\n this.size = entries.size;\n }\n\n FromEntriesSequence.prototype.entrySeq = function() {\n return this._iter.toSeq();\n };\n\n FromEntriesSequence.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return this._iter.__iterate(function(entry ) {\n // Check if entry exists first so array access doesn't throw for holes\n // in the parent iteration.\n if (entry) {\n validateEntry(entry);\n var indexedIterable = isIterable(entry);\n return fn(\n indexedIterable ? entry.get(1) : entry[1],\n indexedIterable ? entry.get(0) : entry[0],\n this$0\n );\n }\n }, reverse);\n };\n\n FromEntriesSequence.prototype.__iterator = function(type, reverse) {\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n return new Iterator(function() {\n while (true) {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n // Check if entry exists first so array access doesn't throw for holes\n // in the parent iteration.\n if (entry) {\n validateEntry(entry);\n var indexedIterable = isIterable(entry);\n return iteratorValue(\n type,\n indexedIterable ? entry.get(0) : entry[0],\n indexedIterable ? entry.get(1) : entry[1],\n step\n );\n }\n }\n });\n };\n\n\n ToIndexedSequence.prototype.cacheResult =\n ToKeyedSequence.prototype.cacheResult =\n ToSetSequence.prototype.cacheResult =\n FromEntriesSequence.prototype.cacheResult =\n cacheResultThrough;\n\n\n function flipFactory(iterable) {\n var flipSequence = makeSequence(iterable);\n flipSequence._iter = iterable;\n flipSequence.size = iterable.size;\n flipSequence.flip = function() {return iterable};\n flipSequence.reverse = function () {\n var reversedSequence = iterable.reverse.apply(this); // super.reverse()\n reversedSequence.flip = function() {return iterable.reverse()};\n return reversedSequence;\n };\n flipSequence.has = function(key ) {return iterable.includes(key)};\n flipSequence.includes = function(key ) {return iterable.has(key)};\n flipSequence.cacheResult = cacheResultThrough;\n flipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;\n return iterable.__iterate(function(v, k) {return fn(k, v, this$0) !== false}, reverse);\n }\n flipSequence.__iteratorUncached = function(type, reverse) {\n if (type === ITERATE_ENTRIES) {\n var iterator = iterable.__iterator(type, reverse);\n return new Iterator(function() {\n var step = iterator.next();\n if (!step.done) {\n var k = step.value[0];\n step.value[0] = step.value[1];\n step.value[1] = k;\n }\n return step;\n });\n }\n return iterable.__iterator(\n type === ITERATE_VALUES ? ITERATE_KEYS : ITERATE_VALUES,\n reverse\n );\n }\n return flipSequence;\n }\n\n\n function mapFactory(iterable, mapper, context) {\n var mappedSequence = makeSequence(iterable);\n mappedSequence.size = iterable.size;\n mappedSequence.has = function(key ) {return iterable.has(key)};\n mappedSequence.get = function(key, notSetValue) {\n var v = iterable.get(key, NOT_SET);\n return v === NOT_SET ?\n notSetValue :\n mapper.call(context, v, key, iterable);\n };\n mappedSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;\n return iterable.__iterate(\n function(v, k, c) {return fn(mapper.call(context, v, k, c), k, this$0) !== false},\n reverse\n );\n }\n mappedSequence.__iteratorUncached = function (type, reverse) {\n var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);\n return new Iterator(function() {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n var key = entry[0];\n return iteratorValue(\n type,\n key,\n mapper.call(context, entry[1], key, iterable),\n step\n );\n });\n }\n return mappedSequence;\n }\n\n\n function reverseFactory(iterable, useKeys) {\n var reversedSequence = makeSequence(iterable);\n reversedSequence._iter = iterable;\n reversedSequence.size = iterable.size;\n reversedSequence.reverse = function() {return iterable};\n if (iterable.flip) {\n reversedSequence.flip = function () {\n var flipSequence = flipFactory(iterable);\n flipSequence.reverse = function() {return iterable.flip()};\n return flipSequence;\n };\n }\n reversedSequence.get = function(key, notSetValue) \n {return iterable.get(useKeys ? key : -1 - key, notSetValue)};\n reversedSequence.has = function(key )\n {return iterable.has(useKeys ? key : -1 - key)};\n reversedSequence.includes = function(value ) {return iterable.includes(value)};\n reversedSequence.cacheResult = cacheResultThrough;\n reversedSequence.__iterate = function (fn, reverse) {var this$0 = this;\n return iterable.__iterate(function(v, k) {return fn(v, k, this$0)}, !reverse);\n };\n reversedSequence.__iterator =\n function(type, reverse) {return iterable.__iterator(type, !reverse)};\n return reversedSequence;\n }\n\n\n function filterFactory(iterable, predicate, context, useKeys) {\n var filterSequence = makeSequence(iterable);\n if (useKeys) {\n filterSequence.has = function(key ) {\n var v = iterable.get(key, NOT_SET);\n return v !== NOT_SET && !!predicate.call(context, v, key, iterable);\n };\n filterSequence.get = function(key, notSetValue) {\n var v = iterable.get(key, NOT_SET);\n return v !== NOT_SET && predicate.call(context, v, key, iterable) ?\n v : notSetValue;\n };\n }\n filterSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;\n var iterations = 0;\n iterable.__iterate(function(v, k, c) {\n if (predicate.call(context, v, k, c)) {\n iterations++;\n return fn(v, useKeys ? k : iterations - 1, this$0);\n }\n }, reverse);\n return iterations;\n };\n filterSequence.__iteratorUncached = function (type, reverse) {\n var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);\n var iterations = 0;\n return new Iterator(function() {\n while (true) {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n var key = entry[0];\n var value = entry[1];\n if (predicate.call(context, value, key, iterable)) {\n return iteratorValue(type, useKeys ? key : iterations++, value, step);\n }\n }\n });\n }\n return filterSequence;\n }\n\n\n function countByFactory(iterable, grouper, context) {\n var groups = Map().asMutable();\n iterable.__iterate(function(v, k) {\n groups.update(\n grouper.call(context, v, k, iterable),\n 0,\n function(a ) {return a + 1}\n );\n });\n return groups.asImmutable();\n }\n\n\n function groupByFactory(iterable, grouper, context) {\n var isKeyedIter = isKeyed(iterable);\n var groups = (isOrdered(iterable) ? OrderedMap() : Map()).asMutable();\n iterable.__iterate(function(v, k) {\n groups.update(\n grouper.call(context, v, k, iterable),\n function(a ) {return (a = a || [], a.push(isKeyedIter ? [k, v] : v), a)}\n );\n });\n var coerce = iterableClass(iterable);\n return groups.map(function(arr ) {return reify(iterable, coerce(arr))});\n }\n\n\n function sliceFactory(iterable, begin, end, useKeys) {\n var originalSize = iterable.size;\n\n // Sanitize begin & end using this shorthand for ToInt32(argument)\n // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32\n if (begin !== undefined) {\n begin = begin | 0;\n }\n if (end !== undefined) {\n end = end | 0;\n }\n\n if (wholeSlice(begin, end, originalSize)) {\n return iterable;\n }\n\n var resolvedBegin = resolveBegin(begin, originalSize);\n var resolvedEnd = resolveEnd(end, originalSize);\n\n // begin or end will be NaN if they were provided as negative numbers and\n // this iterable's size is unknown. In that case, cache first so there is\n // a known size and these do not resolve to NaN.\n if (resolvedBegin !== resolvedBegin || resolvedEnd !== resolvedEnd) {\n return sliceFactory(iterable.toSeq().cacheResult(), begin, end, useKeys);\n }\n\n // Note: resolvedEnd is undefined when the original sequence's length is\n // unknown and this slice did not supply an end and should contain all\n // elements after resolvedBegin.\n // In that case, resolvedSize will be NaN and sliceSize will remain undefined.\n var resolvedSize = resolvedEnd - resolvedBegin;\n var sliceSize;\n if (resolvedSize === resolvedSize) {\n sliceSize = resolvedSize < 0 ? 0 : resolvedSize;\n }\n\n var sliceSeq = makeSequence(iterable);\n\n // If iterable.size is undefined, the size of the realized sliceSeq is\n // unknown at this point unless the number of items to slice is 0\n sliceSeq.size = sliceSize === 0 ? sliceSize : iterable.size && sliceSize || undefined;\n\n if (!useKeys && isSeq(iterable) && sliceSize >= 0) {\n sliceSeq.get = function (index, notSetValue) {\n index = wrapIndex(this, index);\n return index >= 0 && index < sliceSize ?\n iterable.get(index + resolvedBegin, notSetValue) :\n notSetValue;\n }\n }\n\n sliceSeq.__iterateUncached = function(fn, reverse) {var this$0 = this;\n if (sliceSize === 0) {\n return 0;\n }\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var skipped = 0;\n var isSkipping = true;\n var iterations = 0;\n iterable.__iterate(function(v, k) {\n if (!(isSkipping && (isSkipping = skipped++ < resolvedBegin))) {\n iterations++;\n return fn(v, useKeys ? k : iterations - 1, this$0) !== false &&\n iterations !== sliceSize;\n }\n });\n return iterations;\n };\n\n sliceSeq.__iteratorUncached = function(type, reverse) {\n if (sliceSize !== 0 && reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n // Don't bother instantiating parent iterator if taking 0.\n var iterator = sliceSize !== 0 && iterable.__iterator(type, reverse);\n var skipped = 0;\n var iterations = 0;\n return new Iterator(function() {\n while (skipped++ < resolvedBegin) {\n iterator.next();\n }\n if (++iterations > sliceSize) {\n return iteratorDone();\n }\n var step = iterator.next();\n if (useKeys || type === ITERATE_VALUES) {\n return step;\n } else if (type === ITERATE_KEYS) {\n return iteratorValue(type, iterations - 1, undefined, step);\n } else {\n return iteratorValue(type, iterations - 1, step.value[1], step);\n }\n });\n }\n\n return sliceSeq;\n }\n\n\n function takeWhileFactory(iterable, predicate, context) {\n var takeSequence = makeSequence(iterable);\n takeSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var iterations = 0;\n iterable.__iterate(function(v, k, c) \n {return predicate.call(context, v, k, c) && ++iterations && fn(v, k, this$0)}\n );\n return iterations;\n };\n takeSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);\n var iterating = true;\n return new Iterator(function() {\n if (!iterating) {\n return iteratorDone();\n }\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n var k = entry[0];\n var v = entry[1];\n if (!predicate.call(context, v, k, this$0)) {\n iterating = false;\n return iteratorDone();\n }\n return type === ITERATE_ENTRIES ? step :\n iteratorValue(type, k, v, step);\n });\n };\n return takeSequence;\n }\n\n\n function skipWhileFactory(iterable, predicate, context, useKeys) {\n var skipSequence = makeSequence(iterable);\n skipSequence.__iterateUncached = function (fn, reverse) {var this$0 = this;\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var isSkipping = true;\n var iterations = 0;\n iterable.__iterate(function(v, k, c) {\n if (!(isSkipping && (isSkipping = predicate.call(context, v, k, c)))) {\n iterations++;\n return fn(v, useKeys ? k : iterations - 1, this$0);\n }\n });\n return iterations;\n };\n skipSequence.__iteratorUncached = function(type, reverse) {var this$0 = this;\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterator = iterable.__iterator(ITERATE_ENTRIES, reverse);\n var skipping = true;\n var iterations = 0;\n return new Iterator(function() {\n var step, k, v;\n do {\n step = iterator.next();\n if (step.done) {\n if (useKeys || type === ITERATE_VALUES) {\n return step;\n } else if (type === ITERATE_KEYS) {\n return iteratorValue(type, iterations++, undefined, step);\n } else {\n return iteratorValue(type, iterations++, step.value[1], step);\n }\n }\n var entry = step.value;\n k = entry[0];\n v = entry[1];\n skipping && (skipping = predicate.call(context, v, k, this$0));\n } while (skipping);\n return type === ITERATE_ENTRIES ? step :\n iteratorValue(type, k, v, step);\n });\n };\n return skipSequence;\n }\n\n\n function concatFactory(iterable, values) {\n var isKeyedIterable = isKeyed(iterable);\n var iters = [iterable].concat(values).map(function(v ) {\n if (!isIterable(v)) {\n v = isKeyedIterable ?\n keyedSeqFromValue(v) :\n indexedSeqFromValue(Array.isArray(v) ? v : [v]);\n } else if (isKeyedIterable) {\n v = KeyedIterable(v);\n }\n return v;\n }).filter(function(v ) {return v.size !== 0});\n\n if (iters.length === 0) {\n return iterable;\n }\n\n if (iters.length === 1) {\n var singleton = iters[0];\n if (singleton === iterable ||\n isKeyedIterable && isKeyed(singleton) ||\n isIndexed(iterable) && isIndexed(singleton)) {\n return singleton;\n }\n }\n\n var concatSeq = new ArraySeq(iters);\n if (isKeyedIterable) {\n concatSeq = concatSeq.toKeyedSeq();\n } else if (!isIndexed(iterable)) {\n concatSeq = concatSeq.toSetSeq();\n }\n concatSeq = concatSeq.flatten(true);\n concatSeq.size = iters.reduce(\n function(sum, seq) {\n if (sum !== undefined) {\n var size = seq.size;\n if (size !== undefined) {\n return sum + size;\n }\n }\n },\n 0\n );\n return concatSeq;\n }\n\n\n function flattenFactory(iterable, depth, useKeys) {\n var flatSequence = makeSequence(iterable);\n flatSequence.__iterateUncached = function(fn, reverse) {\n var iterations = 0;\n var stopped = false;\n function flatDeep(iter, currentDepth) {var this$0 = this;\n iter.__iterate(function(v, k) {\n if ((!depth || currentDepth < depth) && isIterable(v)) {\n flatDeep(v, currentDepth + 1);\n } else if (fn(v, useKeys ? k : iterations++, this$0) === false) {\n stopped = true;\n }\n return !stopped;\n }, reverse);\n }\n flatDeep(iterable, 0);\n return iterations;\n }\n flatSequence.__iteratorUncached = function(type, reverse) {\n var iterator = iterable.__iterator(type, reverse);\n var stack = [];\n var iterations = 0;\n return new Iterator(function() {\n while (iterator) {\n var step = iterator.next();\n if (step.done !== false) {\n iterator = stack.pop();\n continue;\n }\n var v = step.value;\n if (type === ITERATE_ENTRIES) {\n v = v[1];\n }\n if ((!depth || stack.length < depth) && isIterable(v)) {\n stack.push(iterator);\n iterator = v.__iterator(type, reverse);\n } else {\n return useKeys ? step : iteratorValue(type, iterations++, v, step);\n }\n }\n return iteratorDone();\n });\n }\n return flatSequence;\n }\n\n\n function flatMapFactory(iterable, mapper, context) {\n var coerce = iterableClass(iterable);\n return iterable.toSeq().map(\n function(v, k) {return coerce(mapper.call(context, v, k, iterable))}\n ).flatten(true);\n }\n\n\n function interposeFactory(iterable, separator) {\n var interposedSequence = makeSequence(iterable);\n interposedSequence.size = iterable.size && iterable.size * 2 -1;\n interposedSequence.__iterateUncached = function(fn, reverse) {var this$0 = this;\n var iterations = 0;\n iterable.__iterate(function(v, k) \n {return (!iterations || fn(separator, iterations++, this$0) !== false) &&\n fn(v, iterations++, this$0) !== false},\n reverse\n );\n return iterations;\n };\n interposedSequence.__iteratorUncached = function(type, reverse) {\n var iterator = iterable.__iterator(ITERATE_VALUES, reverse);\n var iterations = 0;\n var step;\n return new Iterator(function() {\n if (!step || iterations % 2) {\n step = iterator.next();\n if (step.done) {\n return step;\n }\n }\n return iterations % 2 ?\n iteratorValue(type, iterations++, separator) :\n iteratorValue(type, iterations++, step.value, step);\n });\n };\n return interposedSequence;\n }\n\n\n function sortFactory(iterable, comparator, mapper) {\n if (!comparator) {\n comparator = defaultComparator;\n }\n var isKeyedIterable = isKeyed(iterable);\n var index = 0;\n var entries = iterable.toSeq().map(\n function(v, k) {return [k, v, index++, mapper ? mapper(v, k, iterable) : v]}\n ).toArray();\n entries.sort(function(a, b) {return comparator(a[3], b[3]) || a[2] - b[2]}).forEach(\n isKeyedIterable ?\n function(v, i) { entries[i].length = 2; } :\n function(v, i) { entries[i] = v[1]; }\n );\n return isKeyedIterable ? KeyedSeq(entries) :\n isIndexed(iterable) ? IndexedSeq(entries) :\n SetSeq(entries);\n }\n\n\n function maxFactory(iterable, comparator, mapper) {\n if (!comparator) {\n comparator = defaultComparator;\n }\n if (mapper) {\n var entry = iterable.toSeq()\n .map(function(v, k) {return [v, mapper(v, k, iterable)]})\n .reduce(function(a, b) {return maxCompare(comparator, a[1], b[1]) ? b : a});\n return entry && entry[0];\n } else {\n return iterable.reduce(function(a, b) {return maxCompare(comparator, a, b) ? b : a});\n }\n }\n\n function maxCompare(comparator, a, b) {\n var comp = comparator(b, a);\n // b is considered the new max if the comparator declares them equal, but\n // they are not equal and b is in fact a nullish value.\n return (comp === 0 && b !== a && (b === undefined || b === null || b !== b)) || comp > 0;\n }\n\n\n function zipWithFactory(keyIter, zipper, iters) {\n var zipSequence = makeSequence(keyIter);\n zipSequence.size = new ArraySeq(iters).map(function(i ) {return i.size}).min();\n // Note: this a generic base implementation of __iterate in terms of\n // __iterator which may be more generically useful in the future.\n zipSequence.__iterate = function(fn, reverse) {\n /* generic:\n var iterator = this.__iterator(ITERATE_ENTRIES, reverse);\n var step;\n var iterations = 0;\n while (!(step = iterator.next()).done) {\n iterations++;\n if (fn(step.value[1], step.value[0], this) === false) {\n break;\n }\n }\n return iterations;\n */\n // indexed:\n var iterator = this.__iterator(ITERATE_VALUES, reverse);\n var step;\n var iterations = 0;\n while (!(step = iterator.next()).done) {\n if (fn(step.value, iterations++, this) === false) {\n break;\n }\n }\n return iterations;\n };\n zipSequence.__iteratorUncached = function(type, reverse) {\n var iterators = iters.map(function(i )\n {return (i = Iterable(i), getIterator(reverse ? i.reverse() : i))}\n );\n var iterations = 0;\n var isDone = false;\n return new Iterator(function() {\n var steps;\n if (!isDone) {\n steps = iterators.map(function(i ) {return i.next()});\n isDone = steps.some(function(s ) {return s.done});\n }\n if (isDone) {\n return iteratorDone();\n }\n return iteratorValue(\n type,\n iterations++,\n zipper.apply(null, steps.map(function(s ) {return s.value}))\n );\n });\n };\n return zipSequence\n }\n\n\n // #pragma Helper Functions\n\n function reify(iter, seq) {\n return isSeq(iter) ? seq : iter.constructor(seq);\n }\n\n function validateEntry(entry) {\n if (entry !== Object(entry)) {\n throw new TypeError('Expected [K, V] tuple: ' + entry);\n }\n }\n\n function resolveSize(iter) {\n assertNotInfinite(iter.size);\n return ensureSize(iter);\n }\n\n function iterableClass(iterable) {\n return isKeyed(iterable) ? KeyedIterable :\n isIndexed(iterable) ? IndexedIterable :\n SetIterable;\n }\n\n function makeSequence(iterable) {\n return Object.create(\n (\n isKeyed(iterable) ? KeyedSeq :\n isIndexed(iterable) ? IndexedSeq :\n SetSeq\n ).prototype\n );\n }\n\n function cacheResultThrough() {\n if (this._iter.cacheResult) {\n this._iter.cacheResult();\n this.size = this._iter.size;\n return this;\n } else {\n return Seq.prototype.cacheResult.call(this);\n }\n }\n\n function defaultComparator(a, b) {\n return a > b ? 1 : a < b ? -1 : 0;\n }\n\n function forceIterator(keyPath) {\n var iter = getIterator(keyPath);\n if (!iter) {\n // Array might not be iterable in this environment, so we need a fallback\n // to our wrapped type.\n if (!isArrayLike(keyPath)) {\n throw new TypeError('Expected iterable or array-like: ' + keyPath);\n }\n iter = getIterator(Iterable(keyPath));\n }\n return iter;\n }\n\n createClass(Record, KeyedCollection);\n\n function Record(defaultValues, name) {\n var hasInitialized;\n\n var RecordType = function Record(values) {\n if (values instanceof RecordType) {\n return values;\n }\n if (!(this instanceof RecordType)) {\n return new RecordType(values);\n }\n if (!hasInitialized) {\n hasInitialized = true;\n var keys = Object.keys(defaultValues);\n setProps(RecordTypePrototype, keys);\n RecordTypePrototype.size = keys.length;\n RecordTypePrototype._name = name;\n RecordTypePrototype._keys = keys;\n RecordTypePrototype._defaultValues = defaultValues;\n }\n this._map = Map(values);\n };\n\n var RecordTypePrototype = RecordType.prototype = Object.create(RecordPrototype);\n RecordTypePrototype.constructor = RecordType;\n\n return RecordType;\n }\n\n Record.prototype.toString = function() {\n return this.__toString(recordName(this) + ' {', '}');\n };\n\n // @pragma Access\n\n Record.prototype.has = function(k) {\n return this._defaultValues.hasOwnProperty(k);\n };\n\n Record.prototype.get = function(k, notSetValue) {\n if (!this.has(k)) {\n return notSetValue;\n }\n var defaultVal = this._defaultValues[k];\n return this._map ? this._map.get(k, defaultVal) : defaultVal;\n };\n\n // @pragma Modification\n\n Record.prototype.clear = function() {\n if (this.__ownerID) {\n this._map && this._map.clear();\n return this;\n }\n var RecordType = this.constructor;\n return RecordType._empty || (RecordType._empty = makeRecord(this, emptyMap()));\n };\n\n Record.prototype.set = function(k, v) {\n if (!this.has(k)) {\n throw new Error('Cannot set unknown key \"' + k + '\" on ' + recordName(this));\n }\n var newMap = this._map && this._map.set(k, v);\n if (this.__ownerID || newMap === this._map) {\n return this;\n }\n return makeRecord(this, newMap);\n };\n\n Record.prototype.remove = function(k) {\n if (!this.has(k)) {\n return this;\n }\n var newMap = this._map && this._map.remove(k);\n if (this.__ownerID || newMap === this._map) {\n return this;\n }\n return makeRecord(this, newMap);\n };\n\n Record.prototype.wasAltered = function() {\n return this._map.wasAltered();\n };\n\n Record.prototype.__iterator = function(type, reverse) {var this$0 = this;\n return KeyedIterable(this._defaultValues).map(function(_, k) {return this$0.get(k)}).__iterator(type, reverse);\n };\n\n Record.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return KeyedIterable(this._defaultValues).map(function(_, k) {return this$0.get(k)}).__iterate(fn, reverse);\n };\n\n Record.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n var newMap = this._map && this._map.__ensureOwner(ownerID);\n if (!ownerID) {\n this.__ownerID = ownerID;\n this._map = newMap;\n return this;\n }\n return makeRecord(this, newMap, ownerID);\n };\n\n\n var RecordPrototype = Record.prototype;\n RecordPrototype[DELETE] = RecordPrototype.remove;\n RecordPrototype.deleteIn =\n RecordPrototype.removeIn = MapPrototype.removeIn;\n RecordPrototype.merge = MapPrototype.merge;\n RecordPrototype.mergeWith = MapPrototype.mergeWith;\n RecordPrototype.mergeIn = MapPrototype.mergeIn;\n RecordPrototype.mergeDeep = MapPrototype.mergeDeep;\n RecordPrototype.mergeDeepWith = MapPrototype.mergeDeepWith;\n RecordPrototype.mergeDeepIn = MapPrototype.mergeDeepIn;\n RecordPrototype.setIn = MapPrototype.setIn;\n RecordPrototype.update = MapPrototype.update;\n RecordPrototype.updateIn = MapPrototype.updateIn;\n RecordPrototype.withMutations = MapPrototype.withMutations;\n RecordPrototype.asMutable = MapPrototype.asMutable;\n RecordPrototype.asImmutable = MapPrototype.asImmutable;\n\n\n function makeRecord(likeRecord, map, ownerID) {\n var record = Object.create(Object.getPrototypeOf(likeRecord));\n record._map = map;\n record.__ownerID = ownerID;\n return record;\n }\n\n function recordName(record) {\n return record._name || record.constructor.name || 'Record';\n }\n\n function setProps(prototype, names) {\n try {\n names.forEach(setProp.bind(undefined, prototype));\n } catch (error) {\n // Object.defineProperty failed. Probably IE8.\n }\n }\n\n function setProp(prototype, name) {\n Object.defineProperty(prototype, name, {\n get: function() {\n return this.get(name);\n },\n set: function(value) {\n invariant(this.__ownerID, 'Cannot set on an immutable record.');\n this.set(name, value);\n }\n });\n }\n\n createClass(Set, SetCollection);\n\n // @pragma Construction\n\n function Set(value) {\n return value === null || value === undefined ? emptySet() :\n isSet(value) && !isOrdered(value) ? value :\n emptySet().withMutations(function(set ) {\n var iter = SetIterable(value);\n assertNotInfinite(iter.size);\n iter.forEach(function(v ) {return set.add(v)});\n });\n }\n\n Set.of = function(/*...values*/) {\n return this(arguments);\n };\n\n Set.fromKeys = function(value) {\n return this(KeyedIterable(value).keySeq());\n };\n\n Set.prototype.toString = function() {\n return this.__toString('Set {', '}');\n };\n\n // @pragma Access\n\n Set.prototype.has = function(value) {\n return this._map.has(value);\n };\n\n // @pragma Modification\n\n Set.prototype.add = function(value) {\n return updateSet(this, this._map.set(value, true));\n };\n\n Set.prototype.remove = function(value) {\n return updateSet(this, this._map.remove(value));\n };\n\n Set.prototype.clear = function() {\n return updateSet(this, this._map.clear());\n };\n\n // @pragma Composition\n\n Set.prototype.union = function() {var iters = SLICE$0.call(arguments, 0);\n iters = iters.filter(function(x ) {return x.size !== 0});\n if (iters.length === 0) {\n return this;\n }\n if (this.size === 0 && !this.__ownerID && iters.length === 1) {\n return this.constructor(iters[0]);\n }\n return this.withMutations(function(set ) {\n for (var ii = 0; ii < iters.length; ii++) {\n SetIterable(iters[ii]).forEach(function(value ) {return set.add(value)});\n }\n });\n };\n\n Set.prototype.intersect = function() {var iters = SLICE$0.call(arguments, 0);\n if (iters.length === 0) {\n return this;\n }\n iters = iters.map(function(iter ) {return SetIterable(iter)});\n var originalSet = this;\n return this.withMutations(function(set ) {\n originalSet.forEach(function(value ) {\n if (!iters.every(function(iter ) {return iter.includes(value)})) {\n set.remove(value);\n }\n });\n });\n };\n\n Set.prototype.subtract = function() {var iters = SLICE$0.call(arguments, 0);\n if (iters.length === 0) {\n return this;\n }\n iters = iters.map(function(iter ) {return SetIterable(iter)});\n var originalSet = this;\n return this.withMutations(function(set ) {\n originalSet.forEach(function(value ) {\n if (iters.some(function(iter ) {return iter.includes(value)})) {\n set.remove(value);\n }\n });\n });\n };\n\n Set.prototype.merge = function() {\n return this.union.apply(this, arguments);\n };\n\n Set.prototype.mergeWith = function(merger) {var iters = SLICE$0.call(arguments, 1);\n return this.union.apply(this, iters);\n };\n\n Set.prototype.sort = function(comparator) {\n // Late binding\n return OrderedSet(sortFactory(this, comparator));\n };\n\n Set.prototype.sortBy = function(mapper, comparator) {\n // Late binding\n return OrderedSet(sortFactory(this, comparator, mapper));\n };\n\n Set.prototype.wasAltered = function() {\n return this._map.wasAltered();\n };\n\n Set.prototype.__iterate = function(fn, reverse) {var this$0 = this;\n return this._map.__iterate(function(_, k) {return fn(k, k, this$0)}, reverse);\n };\n\n Set.prototype.__iterator = function(type, reverse) {\n return this._map.map(function(_, k) {return k}).__iterator(type, reverse);\n };\n\n Set.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n var newMap = this._map.__ensureOwner(ownerID);\n if (!ownerID) {\n this.__ownerID = ownerID;\n this._map = newMap;\n return this;\n }\n return this.__make(newMap, ownerID);\n };\n\n\n function isSet(maybeSet) {\n return !!(maybeSet && maybeSet[IS_SET_SENTINEL]);\n }\n\n Set.isSet = isSet;\n\n var IS_SET_SENTINEL = '@@__IMMUTABLE_SET__@@';\n\n var SetPrototype = Set.prototype;\n SetPrototype[IS_SET_SENTINEL] = true;\n SetPrototype[DELETE] = SetPrototype.remove;\n SetPrototype.mergeDeep = SetPrototype.merge;\n SetPrototype.mergeDeepWith = SetPrototype.mergeWith;\n SetPrototype.withMutations = MapPrototype.withMutations;\n SetPrototype.asMutable = MapPrototype.asMutable;\n SetPrototype.asImmutable = MapPrototype.asImmutable;\n\n SetPrototype.__empty = emptySet;\n SetPrototype.__make = makeSet;\n\n function updateSet(set, newMap) {\n if (set.__ownerID) {\n set.size = newMap.size;\n set._map = newMap;\n return set;\n }\n return newMap === set._map ? set :\n newMap.size === 0 ? set.__empty() :\n set.__make(newMap);\n }\n\n function makeSet(map, ownerID) {\n var set = Object.create(SetPrototype);\n set.size = map ? map.size : 0;\n set._map = map;\n set.__ownerID = ownerID;\n return set;\n }\n\n var EMPTY_SET;\n function emptySet() {\n return EMPTY_SET || (EMPTY_SET = makeSet(emptyMap()));\n }\n\n createClass(OrderedSet, Set);\n\n // @pragma Construction\n\n function OrderedSet(value) {\n return value === null || value === undefined ? emptyOrderedSet() :\n isOrderedSet(value) ? value :\n emptyOrderedSet().withMutations(function(set ) {\n var iter = SetIterable(value);\n assertNotInfinite(iter.size);\n iter.forEach(function(v ) {return set.add(v)});\n });\n }\n\n OrderedSet.of = function(/*...values*/) {\n return this(arguments);\n };\n\n OrderedSet.fromKeys = function(value) {\n return this(KeyedIterable(value).keySeq());\n };\n\n OrderedSet.prototype.toString = function() {\n return this.__toString('OrderedSet {', '}');\n };\n\n\n function isOrderedSet(maybeOrderedSet) {\n return isSet(maybeOrderedSet) && isOrdered(maybeOrderedSet);\n }\n\n OrderedSet.isOrderedSet = isOrderedSet;\n\n var OrderedSetPrototype = OrderedSet.prototype;\n OrderedSetPrototype[IS_ORDERED_SENTINEL] = true;\n\n OrderedSetPrototype.__empty = emptyOrderedSet;\n OrderedSetPrototype.__make = makeOrderedSet;\n\n function makeOrderedSet(map, ownerID) {\n var set = Object.create(OrderedSetPrototype);\n set.size = map ? map.size : 0;\n set._map = map;\n set.__ownerID = ownerID;\n return set;\n }\n\n var EMPTY_ORDERED_SET;\n function emptyOrderedSet() {\n return EMPTY_ORDERED_SET || (EMPTY_ORDERED_SET = makeOrderedSet(emptyOrderedMap()));\n }\n\n createClass(Stack, IndexedCollection);\n\n // @pragma Construction\n\n function Stack(value) {\n return value === null || value === undefined ? emptyStack() :\n isStack(value) ? value :\n emptyStack().unshiftAll(value);\n }\n\n Stack.of = function(/*...values*/) {\n return this(arguments);\n };\n\n Stack.prototype.toString = function() {\n return this.__toString('Stack [', ']');\n };\n\n // @pragma Access\n\n Stack.prototype.get = function(index, notSetValue) {\n var head = this._head;\n index = wrapIndex(this, index);\n while (head && index--) {\n head = head.next;\n }\n return head ? head.value : notSetValue;\n };\n\n Stack.prototype.peek = function() {\n return this._head && this._head.value;\n };\n\n // @pragma Modification\n\n Stack.prototype.push = function(/*...values*/) {\n if (arguments.length === 0) {\n return this;\n }\n var newSize = this.size + arguments.length;\n var head = this._head;\n for (var ii = arguments.length - 1; ii >= 0; ii--) {\n head = {\n value: arguments[ii],\n next: head\n };\n }\n if (this.__ownerID) {\n this.size = newSize;\n this._head = head;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return makeStack(newSize, head);\n };\n\n Stack.prototype.pushAll = function(iter) {\n iter = IndexedIterable(iter);\n if (iter.size === 0) {\n return this;\n }\n assertNotInfinite(iter.size);\n var newSize = this.size;\n var head = this._head;\n iter.reverse().forEach(function(value ) {\n newSize++;\n head = {\n value: value,\n next: head\n };\n });\n if (this.__ownerID) {\n this.size = newSize;\n this._head = head;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return makeStack(newSize, head);\n };\n\n Stack.prototype.pop = function() {\n return this.slice(1);\n };\n\n Stack.prototype.unshift = function(/*...values*/) {\n return this.push.apply(this, arguments);\n };\n\n Stack.prototype.unshiftAll = function(iter) {\n return this.pushAll(iter);\n };\n\n Stack.prototype.shift = function() {\n return this.pop.apply(this, arguments);\n };\n\n Stack.prototype.clear = function() {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = 0;\n this._head = undefined;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return emptyStack();\n };\n\n Stack.prototype.slice = function(begin, end) {\n if (wholeSlice(begin, end, this.size)) {\n return this;\n }\n var resolvedBegin = resolveBegin(begin, this.size);\n var resolvedEnd = resolveEnd(end, this.size);\n if (resolvedEnd !== this.size) {\n // super.slice(begin, end);\n return IndexedCollection.prototype.slice.call(this, begin, end);\n }\n var newSize = this.size - resolvedBegin;\n var head = this._head;\n while (resolvedBegin--) {\n head = head.next;\n }\n if (this.__ownerID) {\n this.size = newSize;\n this._head = head;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return makeStack(newSize, head);\n };\n\n // @pragma Mutability\n\n Stack.prototype.__ensureOwner = function(ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n if (!ownerID) {\n this.__ownerID = ownerID;\n this.__altered = false;\n return this;\n }\n return makeStack(this.size, this._head, ownerID, this.__hash);\n };\n\n // @pragma Iteration\n\n Stack.prototype.__iterate = function(fn, reverse) {\n if (reverse) {\n return this.reverse().__iterate(fn);\n }\n var iterations = 0;\n var node = this._head;\n while (node) {\n if (fn(node.value, iterations++, this) === false) {\n break;\n }\n node = node.next;\n }\n return iterations;\n };\n\n Stack.prototype.__iterator = function(type, reverse) {\n if (reverse) {\n return this.reverse().__iterator(type);\n }\n var iterations = 0;\n var node = this._head;\n return new Iterator(function() {\n if (node) {\n var value = node.value;\n node = node.next;\n return iteratorValue(type, iterations++, value);\n }\n return iteratorDone();\n });\n };\n\n\n function isStack(maybeStack) {\n return !!(maybeStack && maybeStack[IS_STACK_SENTINEL]);\n }\n\n Stack.isStack = isStack;\n\n var IS_STACK_SENTINEL = '@@__IMMUTABLE_STACK__@@';\n\n var StackPrototype = Stack.prototype;\n StackPrototype[IS_STACK_SENTINEL] = true;\n StackPrototype.withMutations = MapPrototype.withMutations;\n StackPrototype.asMutable = MapPrototype.asMutable;\n StackPrototype.asImmutable = MapPrototype.asImmutable;\n StackPrototype.wasAltered = MapPrototype.wasAltered;\n\n\n function makeStack(size, head, ownerID, hash) {\n var map = Object.create(StackPrototype);\n map.size = size;\n map._head = head;\n map.__ownerID = ownerID;\n map.__hash = hash;\n map.__altered = false;\n return map;\n }\n\n var EMPTY_STACK;\n function emptyStack() {\n return EMPTY_STACK || (EMPTY_STACK = makeStack(0));\n }\n\n /**\n * Contributes additional methods to a constructor\n */\n function mixin(ctor, methods) {\n var keyCopier = function(key ) { ctor.prototype[key] = methods[key]; };\n Object.keys(methods).forEach(keyCopier);\n Object.getOwnPropertySymbols &&\n Object.getOwnPropertySymbols(methods).forEach(keyCopier);\n return ctor;\n }\n\n Iterable.Iterator = Iterator;\n\n mixin(Iterable, {\n\n // ### Conversion to other types\n\n toArray: function() {\n assertNotInfinite(this.size);\n var array = new Array(this.size || 0);\n this.valueSeq().__iterate(function(v, i) { array[i] = v; });\n return array;\n },\n\n toIndexedSeq: function() {\n return new ToIndexedSequence(this);\n },\n\n toJS: function() {\n return this.toSeq().map(\n function(value ) {return value && typeof value.toJS === 'function' ? value.toJS() : value}\n ).__toJS();\n },\n\n toJSON: function() {\n return this.toSeq().map(\n function(value ) {return value && typeof value.toJSON === 'function' ? value.toJSON() : value}\n ).__toJS();\n },\n\n toKeyedSeq: function() {\n return new ToKeyedSequence(this, true);\n },\n\n toMap: function() {\n // Use Late Binding here to solve the circular dependency.\n return Map(this.toKeyedSeq());\n },\n\n toObject: function() {\n assertNotInfinite(this.size);\n var object = {};\n this.__iterate(function(v, k) { object[k] = v; });\n return object;\n },\n\n toOrderedMap: function() {\n // Use Late Binding here to solve the circular dependency.\n return OrderedMap(this.toKeyedSeq());\n },\n\n toOrderedSet: function() {\n // Use Late Binding here to solve the circular dependency.\n return OrderedSet(isKeyed(this) ? this.valueSeq() : this);\n },\n\n toSet: function() {\n // Use Late Binding here to solve the circular dependency.\n return Set(isKeyed(this) ? this.valueSeq() : this);\n },\n\n toSetSeq: function() {\n return new ToSetSequence(this);\n },\n\n toSeq: function() {\n return isIndexed(this) ? this.toIndexedSeq() :\n isKeyed(this) ? this.toKeyedSeq() :\n this.toSetSeq();\n },\n\n toStack: function() {\n // Use Late Binding here to solve the circular dependency.\n return Stack(isKeyed(this) ? this.valueSeq() : this);\n },\n\n toList: function() {\n // Use Late Binding here to solve the circular dependency.\n return List(isKeyed(this) ? this.valueSeq() : this);\n },\n\n\n // ### Common JavaScript methods and properties\n\n toString: function() {\n return '[Iterable]';\n },\n\n __toString: function(head, tail) {\n if (this.size === 0) {\n return head + tail;\n }\n return head + ' ' + this.toSeq().map(this.__toStringMapper).join(', ') + ' ' + tail;\n },\n\n\n // ### ES6 Collection methods (ES6 Array and Map)\n\n concat: function() {var values = SLICE$0.call(arguments, 0);\n return reify(this, concatFactory(this, values));\n },\n\n includes: function(searchValue) {\n return this.some(function(value ) {return is(value, searchValue)});\n },\n\n entries: function() {\n return this.__iterator(ITERATE_ENTRIES);\n },\n\n every: function(predicate, context) {\n assertNotInfinite(this.size);\n var returnValue = true;\n this.__iterate(function(v, k, c) {\n if (!predicate.call(context, v, k, c)) {\n returnValue = false;\n return false;\n }\n });\n return returnValue;\n },\n\n filter: function(predicate, context) {\n return reify(this, filterFactory(this, predicate, context, true));\n },\n\n find: function(predicate, context, notSetValue) {\n var entry = this.findEntry(predicate, context);\n return entry ? entry[1] : notSetValue;\n },\n\n findEntry: function(predicate, context) {\n var found;\n this.__iterate(function(v, k, c) {\n if (predicate.call(context, v, k, c)) {\n found = [k, v];\n return false;\n }\n });\n return found;\n },\n\n findLastEntry: function(predicate, context) {\n return this.toSeq().reverse().findEntry(predicate, context);\n },\n\n forEach: function(sideEffect, context) {\n assertNotInfinite(this.size);\n return this.__iterate(context ? sideEffect.bind(context) : sideEffect);\n },\n\n join: function(separator) {\n assertNotInfinite(this.size);\n separator = separator !== undefined ? '' + separator : ',';\n var joined = '';\n var isFirst = true;\n this.__iterate(function(v ) {\n isFirst ? (isFirst = false) : (joined += separator);\n joined += v !== null && v !== undefined ? v.toString() : '';\n });\n return joined;\n },\n\n keys: function() {\n return this.__iterator(ITERATE_KEYS);\n },\n\n map: function(mapper, context) {\n return reify(this, mapFactory(this, mapper, context));\n },\n\n reduce: function(reducer, initialReduction, context) {\n assertNotInfinite(this.size);\n var reduction;\n var useFirst;\n if (arguments.length < 2) {\n useFirst = true;\n } else {\n reduction = initialReduction;\n }\n this.__iterate(function(v, k, c) {\n if (useFirst) {\n useFirst = false;\n reduction = v;\n } else {\n reduction = reducer.call(context, reduction, v, k, c);\n }\n });\n return reduction;\n },\n\n reduceRight: function(reducer, initialReduction, context) {\n var reversed = this.toKeyedSeq().reverse();\n return reversed.reduce.apply(reversed, arguments);\n },\n\n reverse: function() {\n return reify(this, reverseFactory(this, true));\n },\n\n slice: function(begin, end) {\n return reify(this, sliceFactory(this, begin, end, true));\n },\n\n some: function(predicate, context) {\n return !this.every(not(predicate), context);\n },\n\n sort: function(comparator) {\n return reify(this, sortFactory(this, comparator));\n },\n\n values: function() {\n return this.__iterator(ITERATE_VALUES);\n },\n\n\n // ### More sequential methods\n\n butLast: function() {\n return this.slice(0, -1);\n },\n\n isEmpty: function() {\n return this.size !== undefined ? this.size === 0 : !this.some(function() {return true});\n },\n\n count: function(predicate, context) {\n return ensureSize(\n predicate ? this.toSeq().filter(predicate, context) : this\n );\n },\n\n countBy: function(grouper, context) {\n return countByFactory(this, grouper, context);\n },\n\n equals: function(other) {\n return deepEqual(this, other);\n },\n\n entrySeq: function() {\n var iterable = this;\n if (iterable._cache) {\n // We cache as an entries array, so we can just return the cache!\n return new ArraySeq(iterable._cache);\n }\n var entriesSequence = iterable.toSeq().map(entryMapper).toIndexedSeq();\n entriesSequence.fromEntrySeq = function() {return iterable.toSeq()};\n return entriesSequence;\n },\n\n filterNot: function(predicate, context) {\n return this.filter(not(predicate), context);\n },\n\n findLast: function(predicate, context, notSetValue) {\n return this.toKeyedSeq().reverse().find(predicate, context, notSetValue);\n },\n\n first: function() {\n return this.find(returnTrue);\n },\n\n flatMap: function(mapper, context) {\n return reify(this, flatMapFactory(this, mapper, context));\n },\n\n flatten: function(depth) {\n return reify(this, flattenFactory(this, depth, true));\n },\n\n fromEntrySeq: function() {\n return new FromEntriesSequence(this);\n },\n\n get: function(searchKey, notSetValue) {\n return this.find(function(_, key) {return is(key, searchKey)}, undefined, notSetValue);\n },\n\n getIn: function(searchKeyPath, notSetValue) {\n var nested = this;\n // Note: in an ES6 environment, we would prefer:\n // for (var key of searchKeyPath) {\n var iter = forceIterator(searchKeyPath);\n var step;\n while (!(step = iter.next()).done) {\n var key = step.value;\n nested = nested && nested.get ? nested.get(key, NOT_SET) : NOT_SET;\n if (nested === NOT_SET) {\n return notSetValue;\n }\n }\n return nested;\n },\n\n groupBy: function(grouper, context) {\n return groupByFactory(this, grouper, context);\n },\n\n has: function(searchKey) {\n return this.get(searchKey, NOT_SET) !== NOT_SET;\n },\n\n hasIn: function(searchKeyPath) {\n return this.getIn(searchKeyPath, NOT_SET) !== NOT_SET;\n },\n\n isSubset: function(iter) {\n iter = typeof iter.includes === 'function' ? iter : Iterable(iter);\n return this.every(function(value ) {return iter.includes(value)});\n },\n\n isSuperset: function(iter) {\n iter = typeof iter.isSubset === 'function' ? iter : Iterable(iter);\n return iter.isSubset(this);\n },\n\n keySeq: function() {\n return this.toSeq().map(keyMapper).toIndexedSeq();\n },\n\n last: function() {\n return this.toSeq().reverse().first();\n },\n\n max: function(comparator) {\n return maxFactory(this, comparator);\n },\n\n maxBy: function(mapper, comparator) {\n return maxFactory(this, comparator, mapper);\n },\n\n min: function(comparator) {\n return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator);\n },\n\n minBy: function(mapper, comparator) {\n return maxFactory(this, comparator ? neg(comparator) : defaultNegComparator, mapper);\n },\n\n rest: function() {\n return this.slice(1);\n },\n\n skip: function(amount) {\n return this.slice(Math.max(0, amount));\n },\n\n skipLast: function(amount) {\n return reify(this, this.toSeq().reverse().skip(amount).reverse());\n },\n\n skipWhile: function(predicate, context) {\n return reify(this, skipWhileFactory(this, predicate, context, true));\n },\n\n skipUntil: function(predicate, context) {\n return this.skipWhile(not(predicate), context);\n },\n\n sortBy: function(mapper, comparator) {\n return reify(this, sortFactory(this, comparator, mapper));\n },\n\n take: function(amount) {\n return this.slice(0, Math.max(0, amount));\n },\n\n takeLast: function(amount) {\n return reify(this, this.toSeq().reverse().take(amount).reverse());\n },\n\n takeWhile: function(predicate, context) {\n return reify(this, takeWhileFactory(this, predicate, context));\n },\n\n takeUntil: function(predicate, context) {\n return this.takeWhile(not(predicate), context);\n },\n\n valueSeq: function() {\n return this.toIndexedSeq();\n },\n\n\n // ### Hashable Object\n\n hashCode: function() {\n return this.__hash || (this.__hash = hashIterable(this));\n }\n\n\n // ### Internal\n\n // abstract __iterate(fn, reverse)\n\n // abstract __iterator(type, reverse)\n });\n\n // var IS_ITERABLE_SENTINEL = '@@__IMMUTABLE_ITERABLE__@@';\n // var IS_KEYED_SENTINEL = '@@__IMMUTABLE_KEYED__@@';\n // var IS_INDEXED_SENTINEL = '@@__IMMUTABLE_INDEXED__@@';\n // var IS_ORDERED_SENTINEL = '@@__IMMUTABLE_ORDERED__@@';\n\n var IterablePrototype = Iterable.prototype;\n IterablePrototype[IS_ITERABLE_SENTINEL] = true;\n IterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.values;\n IterablePrototype.__toJS = IterablePrototype.toArray;\n IterablePrototype.__toStringMapper = quoteString;\n IterablePrototype.inspect =\n IterablePrototype.toSource = function() { return this.toString(); };\n IterablePrototype.chain = IterablePrototype.flatMap;\n IterablePrototype.contains = IterablePrototype.includes;\n\n // Temporary warning about using length\n (function () {\n try {\n Object.defineProperty(IterablePrototype, 'length', {\n get: function () {\n if (!Iterable.noLengthWarning) {\n var stack;\n try {\n throw new Error();\n } catch (error) {\n stack = error.stack;\n }\n if (stack.indexOf('_wrapObject') === -1) {\n console && console.warn && console.warn(\n 'iterable.length has been deprecated, '+\n 'use iterable.size or iterable.count(). '+\n 'This warning will become a silent error in a future version. ' +\n stack\n );\n return this.size;\n }\n }\n }\n });\n } catch (e) {}\n })();\n\n\n\n mixin(KeyedIterable, {\n\n // ### More sequential methods\n\n flip: function() {\n return reify(this, flipFactory(this));\n },\n\n findKey: function(predicate, context) {\n var entry = this.findEntry(predicate, context);\n return entry && entry[0];\n },\n\n findLastKey: function(predicate, context) {\n return this.toSeq().reverse().findKey(predicate, context);\n },\n\n keyOf: function(searchValue) {\n return this.findKey(function(value ) {return is(value, searchValue)});\n },\n\n lastKeyOf: function(searchValue) {\n return this.findLastKey(function(value ) {return is(value, searchValue)});\n },\n\n mapEntries: function(mapper, context) {var this$0 = this;\n var iterations = 0;\n return reify(this,\n this.toSeq().map(\n function(v, k) {return mapper.call(context, [k, v], iterations++, this$0)}\n ).fromEntrySeq()\n );\n },\n\n mapKeys: function(mapper, context) {var this$0 = this;\n return reify(this,\n this.toSeq().flip().map(\n function(k, v) {return mapper.call(context, k, v, this$0)}\n ).flip()\n );\n }\n\n });\n\n var KeyedIterablePrototype = KeyedIterable.prototype;\n KeyedIterablePrototype[IS_KEYED_SENTINEL] = true;\n KeyedIterablePrototype[ITERATOR_SYMBOL] = IterablePrototype.entries;\n KeyedIterablePrototype.__toJS = IterablePrototype.toObject;\n KeyedIterablePrototype.__toStringMapper = function(v, k) {return JSON.stringify(k) + ': ' + quoteString(v)};\n\n\n\n mixin(IndexedIterable, {\n\n // ### Conversion to other types\n\n toKeyedSeq: function() {\n return new ToKeyedSequence(this, false);\n },\n\n\n // ### ES6 Collection methods (ES6 Array and Map)\n\n filter: function(predicate, context) {\n return reify(this, filterFactory(this, predicate, context, false));\n },\n\n findIndex: function(predicate, context) {\n var entry = this.findEntry(predicate, context);\n return entry ? entry[0] : -1;\n },\n\n indexOf: function(searchValue) {\n var key = this.toKeyedSeq().keyOf(searchValue);\n return key === undefined ? -1 : key;\n },\n\n lastIndexOf: function(searchValue) {\n var key = this.toKeyedSeq().reverse().keyOf(searchValue);\n return key === undefined ? -1 : key;\n\n // var index =\n // return this.toSeq().reverse().indexOf(searchValue);\n },\n\n reverse: function() {\n return reify(this, reverseFactory(this, false));\n },\n\n slice: function(begin, end) {\n return reify(this, sliceFactory(this, begin, end, false));\n },\n\n splice: function(index, removeNum /*, ...values*/) {\n var numArgs = arguments.length;\n removeNum = Math.max(removeNum | 0, 0);\n if (numArgs === 0 || (numArgs === 2 && !removeNum)) {\n return this;\n }\n // If index is negative, it should resolve relative to the size of the\n // collection. However size may be expensive to compute if not cached, so\n // only call count() if the number is in fact negative.\n index = resolveBegin(index, index < 0 ? this.count() : this.size);\n var spliced = this.slice(0, index);\n return reify(\n this,\n numArgs === 1 ?\n spliced :\n spliced.concat(arrCopy(arguments, 2), this.slice(index + removeNum))\n );\n },\n\n\n // ### More collection methods\n\n findLastIndex: function(predicate, context) {\n var key = this.toKeyedSeq().findLastKey(predicate, context);\n return key === undefined ? -1 : key;\n },\n\n first: function() {\n return this.get(0);\n },\n\n flatten: function(depth) {\n return reify(this, flattenFactory(this, depth, false));\n },\n\n get: function(index, notSetValue) {\n index = wrapIndex(this, index);\n return (index < 0 || (this.size === Infinity ||\n (this.size !== undefined && index > this.size))) ?\n notSetValue :\n this.find(function(_, key) {return key === index}, undefined, notSetValue);\n },\n\n has: function(index) {\n index = wrapIndex(this, index);\n return index >= 0 && (this.size !== undefined ?\n this.size === Infinity || index < this.size :\n this.indexOf(index) !== -1\n );\n },\n\n interpose: function(separator) {\n return reify(this, interposeFactory(this, separator));\n },\n\n interleave: function(/*...iterables*/) {\n var iterables = [this].concat(arrCopy(arguments));\n var zipped = zipWithFactory(this.toSeq(), IndexedSeq.of, iterables);\n var interleaved = zipped.flatten(true);\n if (zipped.size) {\n interleaved.size = zipped.size * iterables.length;\n }\n return reify(this, interleaved);\n },\n\n last: function() {\n return this.get(-1);\n },\n\n skipWhile: function(predicate, context) {\n return reify(this, skipWhileFactory(this, predicate, context, false));\n },\n\n zip: function(/*, ...iterables */) {\n var iterables = [this].concat(arrCopy(arguments));\n return reify(this, zipWithFactory(this, defaultZipper, iterables));\n },\n\n zipWith: function(zipper/*, ...iterables */) {\n var iterables = arrCopy(arguments);\n iterables[0] = this;\n return reify(this, zipWithFactory(this, zipper, iterables));\n }\n\n });\n\n IndexedIterable.prototype[IS_INDEXED_SENTINEL] = true;\n IndexedIterable.prototype[IS_ORDERED_SENTINEL] = true;\n\n\n\n mixin(SetIterable, {\n\n // ### ES6 Collection methods (ES6 Array and Map)\n\n get: function(value, notSetValue) {\n return this.has(value) ? value : notSetValue;\n },\n\n includes: function(value) {\n return this.has(value);\n },\n\n\n // ### More sequential methods\n\n keySeq: function() {\n return this.valueSeq();\n }\n\n });\n\n SetIterable.prototype.has = IterablePrototype.includes;\n\n\n // Mixin subclasses\n\n mixin(KeyedSeq, KeyedIterable.prototype);\n mixin(IndexedSeq, IndexedIterable.prototype);\n mixin(SetSeq, SetIterable.prototype);\n\n mixin(KeyedCollection, KeyedIterable.prototype);\n mixin(IndexedCollection, IndexedIterable.prototype);\n mixin(SetCollection, SetIterable.prototype);\n\n\n // #pragma Helper functions\n\n function keyMapper(v, k) {\n return k;\n }\n\n function entryMapper(v, k) {\n return [k, v];\n }\n\n function not(predicate) {\n return function() {\n return !predicate.apply(this, arguments);\n }\n }\n\n function neg(predicate) {\n return function() {\n return -predicate.apply(this, arguments);\n }\n }\n\n function quoteString(value) {\n return typeof value === 'string' ? JSON.stringify(value) : value;\n }\n\n function defaultZipper() {\n return arrCopy(arguments);\n }\n\n function defaultNegComparator(a, b) {\n return a < b ? 1 : a > b ? -1 : 0;\n }\n\n function hashIterable(iterable) {\n if (iterable.size === Infinity) {\n return 0;\n }\n var ordered = isOrdered(iterable);\n var keyed = isKeyed(iterable);\n var h = ordered ? 1 : 0;\n var size = iterable.__iterate(\n keyed ?\n ordered ?\n function(v, k) { h = 31 * h + hashMerge(hash(v), hash(k)) | 0; } :\n function(v, k) { h = h + hashMerge(hash(v), hash(k)) | 0; } :\n ordered ?\n function(v ) { h = 31 * h + hash(v) | 0; } :\n function(v ) { h = h + hash(v) | 0; }\n );\n return murmurHashOfSize(size, h);\n }\n\n function murmurHashOfSize(size, h) {\n h = imul(h, 0xCC9E2D51);\n h = imul(h << 15 | h >>> -15, 0x1B873593);\n h = imul(h << 13 | h >>> -13, 5);\n h = (h + 0xE6546B64 | 0) ^ size;\n h = imul(h ^ h >>> 16, 0x85EBCA6B);\n h = imul(h ^ h >>> 13, 0xC2B2AE35);\n h = smi(h ^ h >>> 16);\n return h;\n }\n\n function hashMerge(a, b) {\n return a ^ b + 0x9E3779B9 + (a << 6) + (a >> 2) | 0; // int\n }\n\n var Immutable = {\n\n Iterable: Iterable,\n\n Seq: Seq,\n Collection: Collection,\n Map: Map,\n OrderedMap: OrderedMap,\n List: List,\n Stack: Stack,\n Set: Set,\n OrderedSet: OrderedSet,\n\n Record: Record,\n Range: Range,\n Repeat: Repeat,\n\n is: is,\n fromJS: fromJS\n\n };\n\n return Immutable;\n\n}));","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar PhotosMimeType = require(\"./PhotosMimeType\");\n\nvar createArrayFromMixed = require(\"./createArrayFromMixed\");\n\nvar emptyFunction = require(\"./emptyFunction\");\n\nvar CR_LF_REGEX = new RegExp(\"\\r\\n\", 'g');\nvar LF_ONLY = \"\\n\";\nvar RICH_TEXT_TYPES = {\n 'text/rtf': 1,\n 'text/html': 1\n};\n/**\n * If DataTransferItem is a file then return the Blob of data.\n *\n * @param {object} item\n * @return {?blob}\n */\n\nfunction getFileFromDataTransfer(item) {\n if (item.kind == 'file') {\n return item.getAsFile();\n }\n}\n\nvar DataTransfer =\n/*#__PURE__*/\nfunction () {\n /**\n * @param {object} data\n */\n function DataTransfer(data) {\n this.data = data; // Types could be DOMStringList or array\n\n this.types = data.types ? createArrayFromMixed(data.types) : [];\n }\n /**\n * Is this likely to be a rich text data transfer?\n *\n * @return {boolean}\n */\n\n\n var _proto = DataTransfer.prototype;\n\n _proto.isRichText = function isRichText() {\n // If HTML is available, treat this data as rich text. This way, we avoid\n // using a pasted image if it is packaged with HTML -- this may occur with\n // pastes from MS Word, for example. However this is only rich text if\n // there's accompanying text.\n if (this.getHTML() && this.getText()) {\n return true;\n } // When an image is copied from a preview window, you end up with two\n // DataTransferItems one of which is a file's metadata as text. Skip those.\n\n\n if (this.isImage()) {\n return false;\n }\n\n return this.types.some(function (type) {\n return RICH_TEXT_TYPES[type];\n });\n };\n /**\n * Get raw text.\n *\n * @return {?string}\n */\n\n\n _proto.getText = function getText() {\n var text;\n\n if (this.data.getData) {\n if (!this.types.length) {\n text = this.data.getData('Text');\n } else if (this.types.indexOf('text/plain') != -1) {\n text = this.data.getData('text/plain');\n }\n }\n\n return text ? text.replace(CR_LF_REGEX, LF_ONLY) : null;\n };\n /**\n * Get HTML paste data\n *\n * @return {?string}\n */\n\n\n _proto.getHTML = function getHTML() {\n if (this.data.getData) {\n if (!this.types.length) {\n return this.data.getData('Text');\n } else if (this.types.indexOf('text/html') != -1) {\n return this.data.getData('text/html');\n }\n }\n };\n /**\n * Is this a link data transfer?\n *\n * @return {boolean}\n */\n\n\n _proto.isLink = function isLink() {\n return this.types.some(function (type) {\n return type.indexOf('Url') != -1 || type.indexOf('text/uri-list') != -1 || type.indexOf('text/x-moz-url');\n });\n };\n /**\n * Get a link url.\n *\n * @return {?string}\n */\n\n\n _proto.getLink = function getLink() {\n if (this.data.getData) {\n if (this.types.indexOf('text/x-moz-url') != -1) {\n var url = this.data.getData('text/x-moz-url').split('\\n');\n return url[0];\n }\n\n return this.types.indexOf('text/uri-list') != -1 ? this.data.getData('text/uri-list') : this.data.getData('url');\n }\n\n return null;\n };\n /**\n * Is this an image data transfer?\n *\n * @return {boolean}\n */\n\n\n _proto.isImage = function isImage() {\n var isImage = this.types.some(function (type) {\n // Firefox will have a type of application/x-moz-file for images during\n // dragging\n return type.indexOf('application/x-moz-file') != -1;\n });\n\n if (isImage) {\n return true;\n }\n\n var items = this.getFiles();\n\n for (var i = 0; i < items.length; i++) {\n var type = items[i].type;\n\n if (!PhotosMimeType.isImage(type)) {\n return false;\n }\n }\n\n return true;\n };\n\n _proto.getCount = function getCount() {\n if (this.data.hasOwnProperty('items')) {\n return this.data.items.length;\n } else if (this.data.hasOwnProperty('mozItemCount')) {\n return this.data.mozItemCount;\n } else if (this.data.files) {\n return this.data.files.length;\n }\n\n return null;\n };\n /**\n * Get files.\n *\n * @return {array}\n */\n\n\n _proto.getFiles = function getFiles() {\n if (this.data.items) {\n // createArrayFromMixed doesn't properly handle DataTransferItemLists.\n return Array.prototype.slice.call(this.data.items).map(getFileFromDataTransfer).filter(emptyFunction.thatReturnsArgument);\n } else if (this.data.files) {\n return Array.prototype.slice.call(this.data.files);\n } else {\n return [];\n }\n };\n /**\n * Are there any files to fetch?\n *\n * @return {boolean}\n */\n\n\n _proto.hasFiles = function hasFiles() {\n return this.getFiles().length > 0;\n };\n\n return DataTransfer;\n}();\n\nmodule.exports = DataTransfer;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\nmodule.exports = {\n BACKSPACE: 8,\n TAB: 9,\n RETURN: 13,\n ALT: 18,\n ESC: 27,\n SPACE: 32,\n PAGE_UP: 33,\n PAGE_DOWN: 34,\n END: 35,\n HOME: 36,\n LEFT: 37,\n UP: 38,\n RIGHT: 39,\n DOWN: 40,\n DELETE: 46,\n COMMA: 188,\n PERIOD: 190,\n A: 65,\n Z: 90,\n ZERO: 48,\n NUMPAD_0: 96,\n NUMPAD_9: 105\n};","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\nvar PhotosMimeType = {\n isImage: function isImage(mimeString) {\n return getParts(mimeString)[0] === 'image';\n },\n isJpeg: function isJpeg(mimeString) {\n var parts = getParts(mimeString);\n return PhotosMimeType.isImage(mimeString) && ( // see http://fburl.com/10972194\n parts[1] === 'jpeg' || parts[1] === 'pjpeg');\n }\n};\n\nfunction getParts(mimeString) {\n return mimeString.split('/');\n}\n\nmodule.exports = PhotosMimeType;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n/**\n * @param {DOMElement} element\n * @param {DOMDocument} doc\n * @return {boolean}\n */\nfunction _isViewportScrollElement(element, doc) {\n return !!doc && (element === doc.documentElement || element === doc.body);\n}\n/**\n * Scroll Module. This class contains 4 simple static functions\n * to be used to access Element.scrollTop/scrollLeft properties.\n * To solve the inconsistencies between browsers when either\n * document.body or document.documentElement is supplied,\n * below logic will be used to alleviate the issue:\n *\n * 1. If 'element' is either 'document.body' or 'document.documentElement,\n * get whichever element's 'scroll{Top,Left}' is larger.\n * 2. If 'element' is either 'document.body' or 'document.documentElement',\n * set the 'scroll{Top,Left}' on both elements.\n */\n\n\nvar Scroll = {\n /**\n * @param {DOMElement} element\n * @return {number}\n */\n getTop: function getTop(element) {\n var doc = element.ownerDocument;\n return _isViewportScrollElement(element, doc) ? // In practice, they will either both have the same value,\n // or one will be zero and the other will be the scroll position\n // of the viewport. So we can use `X || Y` instead of `Math.max(X, Y)`\n doc.body.scrollTop || doc.documentElement.scrollTop : element.scrollTop;\n },\n\n /**\n * @param {DOMElement} element\n * @param {number} newTop\n */\n setTop: function setTop(element, newTop) {\n var doc = element.ownerDocument;\n\n if (_isViewportScrollElement(element, doc)) {\n doc.body.scrollTop = doc.documentElement.scrollTop = newTop;\n } else {\n element.scrollTop = newTop;\n }\n },\n\n /**\n * @param {DOMElement} element\n * @return {number}\n */\n getLeft: function getLeft(element) {\n var doc = element.ownerDocument;\n return _isViewportScrollElement(element, doc) ? doc.body.scrollLeft || doc.documentElement.scrollLeft : element.scrollLeft;\n },\n\n /**\n * @param {DOMElement} element\n * @param {number} newLeft\n */\n setLeft: function setLeft(element, newLeft) {\n var doc = element.ownerDocument;\n\n if (_isViewportScrollElement(element, doc)) {\n doc.body.scrollLeft = doc.documentElement.scrollLeft = newLeft;\n } else {\n element.scrollLeft = newLeft;\n }\n }\n};\nmodule.exports = Scroll;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar getStyleProperty = require(\"./getStyleProperty\");\n/**\n * @param {DOMNode} element [description]\n * @param {string} name Overflow style property name.\n * @return {boolean} True if the supplied ndoe is scrollable.\n */\n\n\nfunction _isNodeScrollable(element, name) {\n var overflow = Style.get(element, name);\n return overflow === 'auto' || overflow === 'scroll';\n}\n/**\n * Utilities for querying and mutating style properties.\n */\n\n\nvar Style = {\n /**\n * Gets the style property for the supplied node. This will return either the\n * computed style, if available, or the declared style.\n *\n * @param {DOMNode} node\n * @param {string} name Style property name.\n * @return {?string} Style property value.\n */\n get: getStyleProperty,\n\n /**\n * Determines the nearest ancestor of a node that is scrollable.\n *\n * NOTE: This can be expensive if used repeatedly or on a node nested deeply.\n *\n * @param {?DOMNode} node Node from which to start searching.\n * @return {?DOMWindow|DOMElement} Scroll parent of the supplied node.\n */\n getScrollParent: function getScrollParent(node) {\n if (!node) {\n return null;\n }\n\n var ownerDocument = node.ownerDocument;\n\n while (node && node !== ownerDocument.body) {\n if (_isNodeScrollable(node, 'overflow') || _isNodeScrollable(node, 'overflowY') || _isNodeScrollable(node, 'overflowX')) {\n return node;\n }\n\n node = node.parentNode;\n }\n\n return ownerDocument.defaultView || ownerDocument.parentWindow;\n }\n};\nmodule.exports = Style;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n * @stub\n * \n */\n'use strict'; // \\u00a1-\\u00b1\\u00b4-\\u00b8\\u00ba\\u00bb\\u00bf\n// is latin supplement punctuation except fractions and superscript\n// numbers\n// \\u2010-\\u2027\\u2030-\\u205e\n// is punctuation from the general punctuation block:\n// weird quotes, commas, bullets, dashes, etc.\n// \\u30fb\\u3001\\u3002\\u3008-\\u3011\\u3014-\\u301f\n// is CJK punctuation\n// \\uff1a-\\uff1f\\uff01-\\uff0f\\uff3b-\\uff40\\uff5b-\\uff65\n// is some full-width/half-width punctuation\n// \\u2E2E\\u061f\\u066a-\\u066c\\u061b\\u060c\\u060d\\uFD3e\\uFD3F\n// is some Arabic punctuation marks\n// \\u1801\\u0964\\u104a\\u104b\n// is misc. other language punctuation marks\n\nvar PUNCTUATION = '[.,+*?$|#{}()\\'\\\\^\\\\-\\\\[\\\\]\\\\\\\\\\\\/!@%\"~=<>_:;' + \"\\u30FB\\u3001\\u3002\\u3008-\\u3011\\u3014-\\u301F\\uFF1A-\\uFF1F\\uFF01-\\uFF0F\" + \"\\uFF3B-\\uFF40\\uFF5B-\\uFF65\\u2E2E\\u061F\\u066A-\\u066C\\u061B\\u060C\\u060D\" + \"\\uFD3E\\uFD3F\\u1801\\u0964\\u104A\\u104B\\u2010-\\u2027\\u2030-\\u205E\" + \"\\xA1-\\xB1\\xB4-\\xB8\\xBA\\xBB\\xBF]\";\nmodule.exports = {\n getPunctuation: function getPunctuation() {\n return PUNCTUATION;\n }\n};","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\n'use strict';\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar URI =\n/*#__PURE__*/\nfunction () {\n function URI(uri) {\n _defineProperty(this, \"_uri\", void 0);\n\n this._uri = uri;\n }\n\n var _proto = URI.prototype;\n\n _proto.toString = function toString() {\n return this._uri;\n };\n\n return URI;\n}();\n\nmodule.exports = URI;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n * \n */\n\n/**\n * Basic (stateless) API for text direction detection\n *\n * Part of our implementation of Unicode Bidirectional Algorithm (UBA)\n * Unicode Standard Annex #9 (UAX9)\n * http://www.unicode.org/reports/tr9/\n */\n'use strict';\n\nvar UnicodeBidiDirection = require(\"./UnicodeBidiDirection\");\n\nvar invariant = require(\"./invariant\");\n\n/**\n * RegExp ranges of characters with a *Strong* Bidi_Class value.\n *\n * Data is based on DerivedBidiClass.txt in UCD version 7.0.0.\n *\n * NOTE: For performance reasons, we only support Unicode's\n * Basic Multilingual Plane (BMP) for now.\n */\nvar RANGE_BY_BIDI_TYPE = {\n L: \"A-Za-z\\xAA\\xB5\\xBA\\xC0-\\xD6\\xD8-\\xF6\\xF8-\\u01BA\\u01BB\" + \"\\u01BC-\\u01BF\\u01C0-\\u01C3\\u01C4-\\u0293\\u0294\\u0295-\\u02AF\\u02B0-\\u02B8\" + \"\\u02BB-\\u02C1\\u02D0-\\u02D1\\u02E0-\\u02E4\\u02EE\\u0370-\\u0373\\u0376-\\u0377\" + \"\\u037A\\u037B-\\u037D\\u037F\\u0386\\u0388-\\u038A\\u038C\\u038E-\\u03A1\" + \"\\u03A3-\\u03F5\\u03F7-\\u0481\\u0482\\u048A-\\u052F\\u0531-\\u0556\\u0559\" + \"\\u055A-\\u055F\\u0561-\\u0587\\u0589\\u0903\\u0904-\\u0939\\u093B\\u093D\" + \"\\u093E-\\u0940\\u0949-\\u094C\\u094E-\\u094F\\u0950\\u0958-\\u0961\\u0964-\\u0965\" + \"\\u0966-\\u096F\\u0970\\u0971\\u0972-\\u0980\\u0982-\\u0983\\u0985-\\u098C\" + \"\\u098F-\\u0990\\u0993-\\u09A8\\u09AA-\\u09B0\\u09B2\\u09B6-\\u09B9\\u09BD\" + \"\\u09BE-\\u09C0\\u09C7-\\u09C8\\u09CB-\\u09CC\\u09CE\\u09D7\\u09DC-\\u09DD\" + \"\\u09DF-\\u09E1\\u09E6-\\u09EF\\u09F0-\\u09F1\\u09F4-\\u09F9\\u09FA\\u0A03\" + \"\\u0A05-\\u0A0A\\u0A0F-\\u0A10\\u0A13-\\u0A28\\u0A2A-\\u0A30\\u0A32-\\u0A33\" + \"\\u0A35-\\u0A36\\u0A38-\\u0A39\\u0A3E-\\u0A40\\u0A59-\\u0A5C\\u0A5E\\u0A66-\\u0A6F\" + \"\\u0A72-\\u0A74\\u0A83\\u0A85-\\u0A8D\\u0A8F-\\u0A91\\u0A93-\\u0AA8\\u0AAA-\\u0AB0\" + \"\\u0AB2-\\u0AB3\\u0AB5-\\u0AB9\\u0ABD\\u0ABE-\\u0AC0\\u0AC9\\u0ACB-\\u0ACC\\u0AD0\" + \"\\u0AE0-\\u0AE1\\u0AE6-\\u0AEF\\u0AF0\\u0B02-\\u0B03\\u0B05-\\u0B0C\\u0B0F-\\u0B10\" + \"\\u0B13-\\u0B28\\u0B2A-\\u0B30\\u0B32-\\u0B33\\u0B35-\\u0B39\\u0B3D\\u0B3E\\u0B40\" + \"\\u0B47-\\u0B48\\u0B4B-\\u0B4C\\u0B57\\u0B5C-\\u0B5D\\u0B5F-\\u0B61\\u0B66-\\u0B6F\" + \"\\u0B70\\u0B71\\u0B72-\\u0B77\\u0B83\\u0B85-\\u0B8A\\u0B8E-\\u0B90\\u0B92-\\u0B95\" + \"\\u0B99-\\u0B9A\\u0B9C\\u0B9E-\\u0B9F\\u0BA3-\\u0BA4\\u0BA8-\\u0BAA\\u0BAE-\\u0BB9\" + \"\\u0BBE-\\u0BBF\\u0BC1-\\u0BC2\\u0BC6-\\u0BC8\\u0BCA-\\u0BCC\\u0BD0\\u0BD7\" + \"\\u0BE6-\\u0BEF\\u0BF0-\\u0BF2\\u0C01-\\u0C03\\u0C05-\\u0C0C\\u0C0E-\\u0C10\" + \"\\u0C12-\\u0C28\\u0C2A-\\u0C39\\u0C3D\\u0C41-\\u0C44\\u0C58-\\u0C59\\u0C60-\\u0C61\" + \"\\u0C66-\\u0C6F\\u0C7F\\u0C82-\\u0C83\\u0C85-\\u0C8C\\u0C8E-\\u0C90\\u0C92-\\u0CA8\" + \"\\u0CAA-\\u0CB3\\u0CB5-\\u0CB9\\u0CBD\\u0CBE\\u0CBF\\u0CC0-\\u0CC4\\u0CC6\" + \"\\u0CC7-\\u0CC8\\u0CCA-\\u0CCB\\u0CD5-\\u0CD6\\u0CDE\\u0CE0-\\u0CE1\\u0CE6-\\u0CEF\" + \"\\u0CF1-\\u0CF2\\u0D02-\\u0D03\\u0D05-\\u0D0C\\u0D0E-\\u0D10\\u0D12-\\u0D3A\\u0D3D\" + \"\\u0D3E-\\u0D40\\u0D46-\\u0D48\\u0D4A-\\u0D4C\\u0D4E\\u0D57\\u0D60-\\u0D61\" + \"\\u0D66-\\u0D6F\\u0D70-\\u0D75\\u0D79\\u0D7A-\\u0D7F\\u0D82-\\u0D83\\u0D85-\\u0D96\" + \"\\u0D9A-\\u0DB1\\u0DB3-\\u0DBB\\u0DBD\\u0DC0-\\u0DC6\\u0DCF-\\u0DD1\\u0DD8-\\u0DDF\" + \"\\u0DE6-\\u0DEF\\u0DF2-\\u0DF3\\u0DF4\\u0E01-\\u0E30\\u0E32-\\u0E33\\u0E40-\\u0E45\" + \"\\u0E46\\u0E4F\\u0E50-\\u0E59\\u0E5A-\\u0E5B\\u0E81-\\u0E82\\u0E84\\u0E87-\\u0E88\" + \"\\u0E8A\\u0E8D\\u0E94-\\u0E97\\u0E99-\\u0E9F\\u0EA1-\\u0EA3\\u0EA5\\u0EA7\" + \"\\u0EAA-\\u0EAB\\u0EAD-\\u0EB0\\u0EB2-\\u0EB3\\u0EBD\\u0EC0-\\u0EC4\\u0EC6\" + \"\\u0ED0-\\u0ED9\\u0EDC-\\u0EDF\\u0F00\\u0F01-\\u0F03\\u0F04-\\u0F12\\u0F13\\u0F14\" + \"\\u0F15-\\u0F17\\u0F1A-\\u0F1F\\u0F20-\\u0F29\\u0F2A-\\u0F33\\u0F34\\u0F36\\u0F38\" + \"\\u0F3E-\\u0F3F\\u0F40-\\u0F47\\u0F49-\\u0F6C\\u0F7F\\u0F85\\u0F88-\\u0F8C\" + \"\\u0FBE-\\u0FC5\\u0FC7-\\u0FCC\\u0FCE-\\u0FCF\\u0FD0-\\u0FD4\\u0FD5-\\u0FD8\" + \"\\u0FD9-\\u0FDA\\u1000-\\u102A\\u102B-\\u102C\\u1031\\u1038\\u103B-\\u103C\\u103F\" + \"\\u1040-\\u1049\\u104A-\\u104F\\u1050-\\u1055\\u1056-\\u1057\\u105A-\\u105D\\u1061\" + \"\\u1062-\\u1064\\u1065-\\u1066\\u1067-\\u106D\\u106E-\\u1070\\u1075-\\u1081\" + \"\\u1083-\\u1084\\u1087-\\u108C\\u108E\\u108F\\u1090-\\u1099\\u109A-\\u109C\" + \"\\u109E-\\u109F\\u10A0-\\u10C5\\u10C7\\u10CD\\u10D0-\\u10FA\\u10FB\\u10FC\" + \"\\u10FD-\\u1248\\u124A-\\u124D\\u1250-\\u1256\\u1258\\u125A-\\u125D\\u1260-\\u1288\" + \"\\u128A-\\u128D\\u1290-\\u12B0\\u12B2-\\u12B5\\u12B8-\\u12BE\\u12C0\\u12C2-\\u12C5\" + \"\\u12C8-\\u12D6\\u12D8-\\u1310\\u1312-\\u1315\\u1318-\\u135A\\u1360-\\u1368\" + \"\\u1369-\\u137C\\u1380-\\u138F\\u13A0-\\u13F4\\u1401-\\u166C\\u166D-\\u166E\" + \"\\u166F-\\u167F\\u1681-\\u169A\\u16A0-\\u16EA\\u16EB-\\u16ED\\u16EE-\\u16F0\" + \"\\u16F1-\\u16F8\\u1700-\\u170C\\u170E-\\u1711\\u1720-\\u1731\\u1735-\\u1736\" + \"\\u1740-\\u1751\\u1760-\\u176C\\u176E-\\u1770\\u1780-\\u17B3\\u17B6\\u17BE-\\u17C5\" + \"\\u17C7-\\u17C8\\u17D4-\\u17D6\\u17D7\\u17D8-\\u17DA\\u17DC\\u17E0-\\u17E9\" + \"\\u1810-\\u1819\\u1820-\\u1842\\u1843\\u1844-\\u1877\\u1880-\\u18A8\\u18AA\" + \"\\u18B0-\\u18F5\\u1900-\\u191E\\u1923-\\u1926\\u1929-\\u192B\\u1930-\\u1931\" + \"\\u1933-\\u1938\\u1946-\\u194F\\u1950-\\u196D\\u1970-\\u1974\\u1980-\\u19AB\" + \"\\u19B0-\\u19C0\\u19C1-\\u19C7\\u19C8-\\u19C9\\u19D0-\\u19D9\\u19DA\\u1A00-\\u1A16\" + \"\\u1A19-\\u1A1A\\u1A1E-\\u1A1F\\u1A20-\\u1A54\\u1A55\\u1A57\\u1A61\\u1A63-\\u1A64\" + \"\\u1A6D-\\u1A72\\u1A80-\\u1A89\\u1A90-\\u1A99\\u1AA0-\\u1AA6\\u1AA7\\u1AA8-\\u1AAD\" + \"\\u1B04\\u1B05-\\u1B33\\u1B35\\u1B3B\\u1B3D-\\u1B41\\u1B43-\\u1B44\\u1B45-\\u1B4B\" + \"\\u1B50-\\u1B59\\u1B5A-\\u1B60\\u1B61-\\u1B6A\\u1B74-\\u1B7C\\u1B82\\u1B83-\\u1BA0\" + \"\\u1BA1\\u1BA6-\\u1BA7\\u1BAA\\u1BAE-\\u1BAF\\u1BB0-\\u1BB9\\u1BBA-\\u1BE5\\u1BE7\" + \"\\u1BEA-\\u1BEC\\u1BEE\\u1BF2-\\u1BF3\\u1BFC-\\u1BFF\\u1C00-\\u1C23\\u1C24-\\u1C2B\" + \"\\u1C34-\\u1C35\\u1C3B-\\u1C3F\\u1C40-\\u1C49\\u1C4D-\\u1C4F\\u1C50-\\u1C59\" + \"\\u1C5A-\\u1C77\\u1C78-\\u1C7D\\u1C7E-\\u1C7F\\u1CC0-\\u1CC7\\u1CD3\\u1CE1\" + \"\\u1CE9-\\u1CEC\\u1CEE-\\u1CF1\\u1CF2-\\u1CF3\\u1CF5-\\u1CF6\\u1D00-\\u1D2B\" + \"\\u1D2C-\\u1D6A\\u1D6B-\\u1D77\\u1D78\\u1D79-\\u1D9A\\u1D9B-\\u1DBF\\u1E00-\\u1F15\" + \"\\u1F18-\\u1F1D\\u1F20-\\u1F45\\u1F48-\\u1F4D\\u1F50-\\u1F57\\u1F59\\u1F5B\\u1F5D\" + \"\\u1F5F-\\u1F7D\\u1F80-\\u1FB4\\u1FB6-\\u1FBC\\u1FBE\\u1FC2-\\u1FC4\\u1FC6-\\u1FCC\" + \"\\u1FD0-\\u1FD3\\u1FD6-\\u1FDB\\u1FE0-\\u1FEC\\u1FF2-\\u1FF4\\u1FF6-\\u1FFC\\u200E\" + \"\\u2071\\u207F\\u2090-\\u209C\\u2102\\u2107\\u210A-\\u2113\\u2115\\u2119-\\u211D\" + \"\\u2124\\u2126\\u2128\\u212A-\\u212D\\u212F-\\u2134\\u2135-\\u2138\\u2139\" + \"\\u213C-\\u213F\\u2145-\\u2149\\u214E\\u214F\\u2160-\\u2182\\u2183-\\u2184\" + \"\\u2185-\\u2188\\u2336-\\u237A\\u2395\\u249C-\\u24E9\\u26AC\\u2800-\\u28FF\" + \"\\u2C00-\\u2C2E\\u2C30-\\u2C5E\\u2C60-\\u2C7B\\u2C7C-\\u2C7D\\u2C7E-\\u2CE4\" + \"\\u2CEB-\\u2CEE\\u2CF2-\\u2CF3\\u2D00-\\u2D25\\u2D27\\u2D2D\\u2D30-\\u2D67\\u2D6F\" + \"\\u2D70\\u2D80-\\u2D96\\u2DA0-\\u2DA6\\u2DA8-\\u2DAE\\u2DB0-\\u2DB6\\u2DB8-\\u2DBE\" + \"\\u2DC0-\\u2DC6\\u2DC8-\\u2DCE\\u2DD0-\\u2DD6\\u2DD8-\\u2DDE\\u3005\\u3006\\u3007\" + \"\\u3021-\\u3029\\u302E-\\u302F\\u3031-\\u3035\\u3038-\\u303A\\u303B\\u303C\" + \"\\u3041-\\u3096\\u309D-\\u309E\\u309F\\u30A1-\\u30FA\\u30FC-\\u30FE\\u30FF\" + \"\\u3105-\\u312D\\u3131-\\u318E\\u3190-\\u3191\\u3192-\\u3195\\u3196-\\u319F\" + \"\\u31A0-\\u31BA\\u31F0-\\u31FF\\u3200-\\u321C\\u3220-\\u3229\\u322A-\\u3247\" + \"\\u3248-\\u324F\\u3260-\\u327B\\u327F\\u3280-\\u3289\\u328A-\\u32B0\\u32C0-\\u32CB\" + \"\\u32D0-\\u32FE\\u3300-\\u3376\\u337B-\\u33DD\\u33E0-\\u33FE\\u3400-\\u4DB5\" + \"\\u4E00-\\u9FCC\\uA000-\\uA014\\uA015\\uA016-\\uA48C\\uA4D0-\\uA4F7\\uA4F8-\\uA4FD\" + \"\\uA4FE-\\uA4FF\\uA500-\\uA60B\\uA60C\\uA610-\\uA61F\\uA620-\\uA629\\uA62A-\\uA62B\" + \"\\uA640-\\uA66D\\uA66E\\uA680-\\uA69B\\uA69C-\\uA69D\\uA6A0-\\uA6E5\\uA6E6-\\uA6EF\" + \"\\uA6F2-\\uA6F7\\uA722-\\uA76F\\uA770\\uA771-\\uA787\\uA789-\\uA78A\\uA78B-\\uA78E\" + \"\\uA790-\\uA7AD\\uA7B0-\\uA7B1\\uA7F7\\uA7F8-\\uA7F9\\uA7FA\\uA7FB-\\uA801\" + \"\\uA803-\\uA805\\uA807-\\uA80A\\uA80C-\\uA822\\uA823-\\uA824\\uA827\\uA830-\\uA835\" + \"\\uA836-\\uA837\\uA840-\\uA873\\uA880-\\uA881\\uA882-\\uA8B3\\uA8B4-\\uA8C3\" + \"\\uA8CE-\\uA8CF\\uA8D0-\\uA8D9\\uA8F2-\\uA8F7\\uA8F8-\\uA8FA\\uA8FB\\uA900-\\uA909\" + \"\\uA90A-\\uA925\\uA92E-\\uA92F\\uA930-\\uA946\\uA952-\\uA953\\uA95F\\uA960-\\uA97C\" + \"\\uA983\\uA984-\\uA9B2\\uA9B4-\\uA9B5\\uA9BA-\\uA9BB\\uA9BD-\\uA9C0\\uA9C1-\\uA9CD\" + \"\\uA9CF\\uA9D0-\\uA9D9\\uA9DE-\\uA9DF\\uA9E0-\\uA9E4\\uA9E6\\uA9E7-\\uA9EF\" + \"\\uA9F0-\\uA9F9\\uA9FA-\\uA9FE\\uAA00-\\uAA28\\uAA2F-\\uAA30\\uAA33-\\uAA34\" + \"\\uAA40-\\uAA42\\uAA44-\\uAA4B\\uAA4D\\uAA50-\\uAA59\\uAA5C-\\uAA5F\\uAA60-\\uAA6F\" + \"\\uAA70\\uAA71-\\uAA76\\uAA77-\\uAA79\\uAA7A\\uAA7B\\uAA7D\\uAA7E-\\uAAAF\\uAAB1\" + \"\\uAAB5-\\uAAB6\\uAAB9-\\uAABD\\uAAC0\\uAAC2\\uAADB-\\uAADC\\uAADD\\uAADE-\\uAADF\" + \"\\uAAE0-\\uAAEA\\uAAEB\\uAAEE-\\uAAEF\\uAAF0-\\uAAF1\\uAAF2\\uAAF3-\\uAAF4\\uAAF5\" + \"\\uAB01-\\uAB06\\uAB09-\\uAB0E\\uAB11-\\uAB16\\uAB20-\\uAB26\\uAB28-\\uAB2E\" + \"\\uAB30-\\uAB5A\\uAB5B\\uAB5C-\\uAB5F\\uAB64-\\uAB65\\uABC0-\\uABE2\\uABE3-\\uABE4\" + \"\\uABE6-\\uABE7\\uABE9-\\uABEA\\uABEB\\uABEC\\uABF0-\\uABF9\\uAC00-\\uD7A3\" + \"\\uD7B0-\\uD7C6\\uD7CB-\\uD7FB\\uE000-\\uF8FF\\uF900-\\uFA6D\\uFA70-\\uFAD9\" + \"\\uFB00-\\uFB06\\uFB13-\\uFB17\\uFF21-\\uFF3A\\uFF41-\\uFF5A\\uFF66-\\uFF6F\\uFF70\" + \"\\uFF71-\\uFF9D\\uFF9E-\\uFF9F\\uFFA0-\\uFFBE\\uFFC2-\\uFFC7\\uFFCA-\\uFFCF\" + \"\\uFFD2-\\uFFD7\\uFFDA-\\uFFDC\",\n R: \"\\u0590\\u05BE\\u05C0\\u05C3\\u05C6\\u05C8-\\u05CF\\u05D0-\\u05EA\\u05EB-\\u05EF\" + \"\\u05F0-\\u05F2\\u05F3-\\u05F4\\u05F5-\\u05FF\\u07C0-\\u07C9\\u07CA-\\u07EA\" + \"\\u07F4-\\u07F5\\u07FA\\u07FB-\\u07FF\\u0800-\\u0815\\u081A\\u0824\\u0828\" + \"\\u082E-\\u082F\\u0830-\\u083E\\u083F\\u0840-\\u0858\\u085C-\\u085D\\u085E\" + \"\\u085F-\\u089F\\u200F\\uFB1D\\uFB1F-\\uFB28\\uFB2A-\\uFB36\\uFB37\\uFB38-\\uFB3C\" + \"\\uFB3D\\uFB3E\\uFB3F\\uFB40-\\uFB41\\uFB42\\uFB43-\\uFB44\\uFB45\\uFB46-\\uFB4F\",\n AL: \"\\u0608\\u060B\\u060D\\u061B\\u061C\\u061D\\u061E-\\u061F\\u0620-\\u063F\\u0640\" + \"\\u0641-\\u064A\\u066D\\u066E-\\u066F\\u0671-\\u06D3\\u06D4\\u06D5\\u06E5-\\u06E6\" + \"\\u06EE-\\u06EF\\u06FA-\\u06FC\\u06FD-\\u06FE\\u06FF\\u0700-\\u070D\\u070E\\u070F\" + \"\\u0710\\u0712-\\u072F\\u074B-\\u074C\\u074D-\\u07A5\\u07B1\\u07B2-\\u07BF\" + \"\\u08A0-\\u08B2\\u08B3-\\u08E3\\uFB50-\\uFBB1\\uFBB2-\\uFBC1\\uFBC2-\\uFBD2\" + \"\\uFBD3-\\uFD3D\\uFD40-\\uFD4F\\uFD50-\\uFD8F\\uFD90-\\uFD91\\uFD92-\\uFDC7\" + \"\\uFDC8-\\uFDCF\\uFDF0-\\uFDFB\\uFDFC\\uFDFE-\\uFDFF\\uFE70-\\uFE74\\uFE75\" + \"\\uFE76-\\uFEFC\\uFEFD-\\uFEFE\"\n};\nvar REGEX_STRONG = new RegExp('[' + RANGE_BY_BIDI_TYPE.L + RANGE_BY_BIDI_TYPE.R + RANGE_BY_BIDI_TYPE.AL + ']');\nvar REGEX_RTL = new RegExp('[' + RANGE_BY_BIDI_TYPE.R + RANGE_BY_BIDI_TYPE.AL + ']');\n/**\n * Returns the first strong character (has Bidi_Class value of L, R, or AL).\n *\n * @param str A text block; e.g. paragraph, table cell, tag\n * @return A character with strong bidi direction, or null if not found\n */\n\nfunction firstStrongChar(str) {\n var match = REGEX_STRONG.exec(str);\n return match == null ? null : match[0];\n}\n/**\n * Returns the direction of a block of text, based on the direction of its\n * first strong character (has Bidi_Class value of L, R, or AL).\n *\n * @param str A text block; e.g. paragraph, table cell, tag\n * @return The resolved direction\n */\n\n\nfunction firstStrongCharDir(str) {\n var strongChar = firstStrongChar(str);\n\n if (strongChar == null) {\n return UnicodeBidiDirection.NEUTRAL;\n }\n\n return REGEX_RTL.exec(strongChar) ? UnicodeBidiDirection.RTL : UnicodeBidiDirection.LTR;\n}\n/**\n * Returns the direction of a block of text, based on the direction of its\n * first strong character (has Bidi_Class value of L, R, or AL), or a fallback\n * direction, if no strong character is found.\n *\n * This function is supposed to be used in respect to Higher-Level Protocol\n * rule HL1. (http://www.unicode.org/reports/tr9/#HL1)\n *\n * @param str A text block; e.g. paragraph, table cell, tag\n * @param fallback Fallback direction, used if no strong direction detected\n * for the block (default = NEUTRAL)\n * @return The resolved direction\n */\n\n\nfunction resolveBlockDir(str, fallback) {\n fallback = fallback || UnicodeBidiDirection.NEUTRAL;\n\n if (!str.length) {\n return fallback;\n }\n\n var blockDir = firstStrongCharDir(str);\n return blockDir === UnicodeBidiDirection.NEUTRAL ? fallback : blockDir;\n}\n/**\n * Returns the direction of a block of text, based on the direction of its\n * first strong character (has Bidi_Class value of L, R, or AL), or a fallback\n * direction, if no strong character is found.\n *\n * NOTE: This function is similar to resolveBlockDir(), but uses the global\n * direction as the fallback, so it *always* returns a Strong direction,\n * making it useful for integration in places that you need to make the final\n * decision, like setting some CSS class.\n *\n * This function is supposed to be used in respect to Higher-Level Protocol\n * rule HL1. (http://www.unicode.org/reports/tr9/#HL1)\n *\n * @param str A text block; e.g. paragraph, table cell\n * @param strongFallback Fallback direction, used if no strong direction\n * detected for the block (default = global direction)\n * @return The resolved Strong direction\n */\n\n\nfunction getDirection(str, strongFallback) {\n if (!strongFallback) {\n strongFallback = UnicodeBidiDirection.getGlobalDir();\n }\n\n !UnicodeBidiDirection.isStrong(strongFallback) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Fallback direction must be a strong direction') : invariant(false) : void 0;\n return resolveBlockDir(str, strongFallback);\n}\n/**\n * Returns true if getDirection(arguments...) returns LTR.\n *\n * @param str A text block; e.g. paragraph, table cell\n * @param strongFallback Fallback direction, used if no strong direction\n * detected for the block (default = global direction)\n * @return True if the resolved direction is LTR\n */\n\n\nfunction isDirectionLTR(str, strongFallback) {\n return getDirection(str, strongFallback) === UnicodeBidiDirection.LTR;\n}\n/**\n * Returns true if getDirection(arguments...) returns RTL.\n *\n * @param str A text block; e.g. paragraph, table cell\n * @param strongFallback Fallback direction, used if no strong direction\n * detected for the block (default = global direction)\n * @return True if the resolved direction is RTL\n */\n\n\nfunction isDirectionRTL(str, strongFallback) {\n return getDirection(str, strongFallback) === UnicodeBidiDirection.RTL;\n}\n\nvar UnicodeBidi = {\n firstStrongChar: firstStrongChar,\n firstStrongCharDir: firstStrongCharDir,\n resolveBlockDir: resolveBlockDir,\n getDirection: getDirection,\n isDirectionLTR: isDirectionLTR,\n isDirectionRTL: isDirectionRTL\n};\nmodule.exports = UnicodeBidi;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n * \n */\n\n/**\n * Constants to represent text directionality\n *\n * Also defines a *global* direciton, to be used in bidi algorithms as a\n * default fallback direciton, when no better direction is found or provided.\n *\n * NOTE: Use `setGlobalDir()`, or update `initGlobalDir()`, to set the initial\n * global direction value based on the application.\n *\n * Part of the implementation of Unicode Bidirectional Algorithm (UBA)\n * Unicode Standard Annex #9 (UAX9)\n * http://www.unicode.org/reports/tr9/\n */\n'use strict';\n\nvar invariant = require(\"./invariant\");\n\nvar NEUTRAL = 'NEUTRAL'; // No strong direction\n\nvar LTR = 'LTR'; // Left-to-Right direction\n\nvar RTL = 'RTL'; // Right-to-Left direction\n\nvar globalDir = null; // == Helpers ==\n\n/**\n * Check if a directionality value is a Strong one\n */\n\nfunction isStrong(dir) {\n return dir === LTR || dir === RTL;\n}\n/**\n * Get string value to be used for `dir` HTML attribute or `direction` CSS\n * property.\n */\n\n\nfunction getHTMLDir(dir) {\n !isStrong(dir) ? process.env.NODE_ENV !== \"production\" ? invariant(false, '`dir` must be a strong direction to be converted to HTML Direction') : invariant(false) : void 0;\n return dir === LTR ? 'ltr' : 'rtl';\n}\n/**\n * Get string value to be used for `dir` HTML attribute or `direction` CSS\n * property, but returns null if `dir` has same value as `otherDir`.\n * `null`.\n */\n\n\nfunction getHTMLDirIfDifferent(dir, otherDir) {\n !isStrong(dir) ? process.env.NODE_ENV !== \"production\" ? invariant(false, '`dir` must be a strong direction to be converted to HTML Direction') : invariant(false) : void 0;\n !isStrong(otherDir) ? process.env.NODE_ENV !== \"production\" ? invariant(false, '`otherDir` must be a strong direction to be converted to HTML Direction') : invariant(false) : void 0;\n return dir === otherDir ? null : getHTMLDir(dir);\n} // == Global Direction ==\n\n/**\n * Set the global direction.\n */\n\n\nfunction setGlobalDir(dir) {\n globalDir = dir;\n}\n/**\n * Initialize the global direction\n */\n\n\nfunction initGlobalDir() {\n setGlobalDir(LTR);\n}\n/**\n * Get the global direction\n */\n\n\nfunction getGlobalDir() {\n if (!globalDir) {\n this.initGlobalDir();\n }\n\n !globalDir ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Global direction not set.') : invariant(false) : void 0;\n return globalDir;\n}\n\nvar UnicodeBidiDirection = {\n // Values\n NEUTRAL: NEUTRAL,\n LTR: LTR,\n RTL: RTL,\n // Helpers\n isStrong: isStrong,\n getHTMLDir: getHTMLDir,\n getHTMLDirIfDifferent: getHTMLDirIfDifferent,\n // Global Direction\n setGlobalDir: setGlobalDir,\n initGlobalDir: initGlobalDir,\n getGlobalDir: getGlobalDir\n};\nmodule.exports = UnicodeBidiDirection;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n * \n */\n\n/**\n * Stateful API for text direction detection\n *\n * This class can be used in applications where you need to detect the\n * direction of a sequence of text blocks, where each direction shall be used\n * as the fallback direction for the next one.\n *\n * NOTE: A default direction, if not provided, is set based on the global\n * direction, as defined by `UnicodeBidiDirection`.\n *\n * == Example ==\n * ```\n * var UnicodeBidiService = require('UnicodeBidiService');\n *\n * var bidiService = new UnicodeBidiService();\n *\n * ...\n *\n * bidiService.reset();\n * for (var para in paragraphs) {\n * var dir = bidiService.getDirection(para);\n * ...\n * }\n * ```\n *\n * Part of our implementation of Unicode Bidirectional Algorithm (UBA)\n * Unicode Standard Annex #9 (UAX9)\n * http://www.unicode.org/reports/tr9/\n */\n'use strict';\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nvar UnicodeBidi = require(\"./UnicodeBidi\");\n\nvar UnicodeBidiDirection = require(\"./UnicodeBidiDirection\");\n\nvar invariant = require(\"./invariant\");\n\nvar UnicodeBidiService =\n/*#__PURE__*/\nfunction () {\n /**\n * Stateful class for paragraph direction detection\n *\n * @param defaultDir Default direction of the service\n */\n function UnicodeBidiService(defaultDir) {\n _defineProperty(this, \"_defaultDir\", void 0);\n\n _defineProperty(this, \"_lastDir\", void 0);\n\n if (!defaultDir) {\n defaultDir = UnicodeBidiDirection.getGlobalDir();\n } else {\n !UnicodeBidiDirection.isStrong(defaultDir) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'Default direction must be a strong direction (LTR or RTL)') : invariant(false) : void 0;\n }\n\n this._defaultDir = defaultDir;\n this.reset();\n }\n /**\n * Reset the internal state\n *\n * Instead of creating a new instance, you can just reset() your instance\n * everytime you start a new loop.\n */\n\n\n var _proto = UnicodeBidiService.prototype;\n\n _proto.reset = function reset() {\n this._lastDir = this._defaultDir;\n };\n /**\n * Returns the direction of a block of text, and remembers it as the\n * fall-back direction for the next paragraph.\n *\n * @param str A text block, e.g. paragraph, table cell, tag\n * @return The resolved direction\n */\n\n\n _proto.getDirection = function getDirection(str) {\n this._lastDir = UnicodeBidi.getDirection(str, this._lastDir);\n return this._lastDir;\n };\n\n return UnicodeBidiService;\n}();\n\nmodule.exports = UnicodeBidiService;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\n\n/**\n * Unicode-enabled replacesments for basic String functions.\n *\n * All the functions in this module assume that the input string is a valid\n * UTF-16 encoding of a Unicode sequence. If it's not the case, the behavior\n * will be undefined.\n *\n * WARNING: Since this module is typechecks-enforced, you may find new bugs\n * when replacing normal String functions with ones provided here.\n */\n'use strict';\n\nvar invariant = require(\"./invariant\"); // These two ranges are consecutive so anything in [HIGH_START, LOW_END] is a\n// surrogate code unit.\n\n\nvar SURROGATE_HIGH_START = 0xD800;\nvar SURROGATE_HIGH_END = 0xDBFF;\nvar SURROGATE_LOW_START = 0xDC00;\nvar SURROGATE_LOW_END = 0xDFFF;\nvar SURROGATE_UNITS_REGEX = /[\\uD800-\\uDFFF]/;\n/**\n * @param {number} codeUnit A Unicode code-unit, in range [0, 0x10FFFF]\n * @return {boolean} Whether code-unit is in a surrogate (hi/low) range\n */\n\nfunction isCodeUnitInSurrogateRange(codeUnit) {\n return SURROGATE_HIGH_START <= codeUnit && codeUnit <= SURROGATE_LOW_END;\n}\n/**\n * Returns whether the two characters starting at `index` form a surrogate pair.\n * For example, given the string s = \"\\uD83D\\uDE0A\", (s, 0) returns true and\n * (s, 1) returns false.\n *\n * @param {string} str\n * @param {number} index\n * @return {boolean}\n */\n\n\nfunction isSurrogatePair(str, index) {\n !(0 <= index && index < str.length) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'isSurrogatePair: Invalid index %s for string length %s.', index, str.length) : invariant(false) : void 0;\n\n if (index + 1 === str.length) {\n return false;\n }\n\n var first = str.charCodeAt(index);\n var second = str.charCodeAt(index + 1);\n return SURROGATE_HIGH_START <= first && first <= SURROGATE_HIGH_END && SURROGATE_LOW_START <= second && second <= SURROGATE_LOW_END;\n}\n/**\n * @param {string} str Non-empty string\n * @return {boolean} True if the input includes any surrogate code units\n */\n\n\nfunction hasSurrogateUnit(str) {\n return SURROGATE_UNITS_REGEX.test(str);\n}\n/**\n * Return the length of the original Unicode character at given position in the\n * String by looking into the UTF-16 code unit; that is equal to 1 for any\n * non-surrogate characters in BMP ([U+0000..U+D7FF] and [U+E000, U+FFFF]); and\n * returns 2 for the hi/low surrogates ([U+D800..U+DFFF]), which are in fact\n * representing non-BMP characters ([U+10000..U+10FFFF]).\n *\n * Examples:\n * - '\\u0020' => 1\n * - '\\u3020' => 1\n * - '\\uD835' => 2\n * - '\\uD835\\uDDEF' => 2\n * - '\\uDDEF' => 2\n *\n * @param {string} str Non-empty string\n * @param {number} pos Position in the string to look for one code unit\n * @return {number} Number 1 or 2\n */\n\n\nfunction getUTF16Length(str, pos) {\n return 1 + isCodeUnitInSurrogateRange(str.charCodeAt(pos));\n}\n/**\n * Fully Unicode-enabled replacement for String#length\n *\n * @param {string} str Valid Unicode string\n * @return {number} The number of Unicode characters in the string\n */\n\n\nfunction strlen(str) {\n // Call the native functions if there's no surrogate char\n if (!hasSurrogateUnit(str)) {\n return str.length;\n }\n\n var len = 0;\n\n for (var pos = 0; pos < str.length; pos += getUTF16Length(str, pos)) {\n len++;\n }\n\n return len;\n}\n/**\n * Fully Unicode-enabled replacement for String#substr()\n *\n * @param {string} str Valid Unicode string\n * @param {number} start Location in Unicode sequence to begin extracting\n * @param {?number} length The number of Unicode characters to extract\n * (default: to the end of the string)\n * @return {string} Extracted sub-string\n */\n\n\nfunction substr(str, start, length) {\n start = start || 0;\n length = length === undefined ? Infinity : length || 0; // Call the native functions if there's no surrogate char\n\n if (!hasSurrogateUnit(str)) {\n return str.substr(start, length);\n } // Obvious cases\n\n\n var size = str.length;\n\n if (size <= 0 || start > size || length <= 0) {\n return '';\n } // Find the actual starting position\n\n\n var posA = 0;\n\n if (start > 0) {\n for (; start > 0 && posA < size; start--) {\n posA += getUTF16Length(str, posA);\n }\n\n if (posA >= size) {\n return '';\n }\n } else if (start < 0) {\n for (posA = size; start < 0 && 0 < posA; start++) {\n posA -= getUTF16Length(str, posA - 1);\n }\n\n if (posA < 0) {\n posA = 0;\n }\n } // Find the actual ending position\n\n\n var posB = size;\n\n if (length < size) {\n for (posB = posA; length > 0 && posB < size; length--) {\n posB += getUTF16Length(str, posB);\n }\n }\n\n return str.substring(posA, posB);\n}\n/**\n * Fully Unicode-enabled replacement for String#substring()\n *\n * @param {string} str Valid Unicode string\n * @param {number} start Location in Unicode sequence to begin extracting\n * @param {?number} end Location in Unicode sequence to end extracting\n * (default: end of the string)\n * @return {string} Extracted sub-string\n */\n\n\nfunction substring(str, start, end) {\n start = start || 0;\n end = end === undefined ? Infinity : end || 0;\n\n if (start < 0) {\n start = 0;\n }\n\n if (end < 0) {\n end = 0;\n }\n\n var length = Math.abs(end - start);\n start = start < end ? start : end;\n return substr(str, start, length);\n}\n/**\n * Get a list of Unicode code-points from a String\n *\n * @param {string} str Valid Unicode string\n * @return {array
} A list of code-points in [0..0x10FFFF]\n */\n\n\nfunction getCodePoints(str) {\n var codePoints = [];\n\n for (var pos = 0; pos < str.length; pos += getUTF16Length(str, pos)) {\n codePoints.push(str.codePointAt(pos));\n }\n\n return codePoints;\n}\n\nvar UnicodeUtils = {\n getCodePoints: getCodePoints,\n getUTF16Length: getUTF16Length,\n hasSurrogateUnit: hasSurrogateUnit,\n isCodeUnitInSurrogateRange: isCodeUnitInSurrogateRange,\n isSurrogatePair: isSurrogatePair,\n strlen: strlen,\n substring: substring,\n substr: substr\n};\nmodule.exports = UnicodeUtils;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n'use strict';\n\nvar UserAgentData = require(\"./UserAgentData\");\n\nvar VersionRange = require(\"./VersionRange\");\n\nvar mapObject = require(\"./mapObject\");\n\nvar memoizeStringOnly = require(\"./memoizeStringOnly\");\n/**\n * Checks to see whether `name` and `version` satisfy `query`.\n *\n * @param {string} name Name of the browser, device, engine or platform\n * @param {?string} version Version of the browser, engine or platform\n * @param {string} query Query of form \"Name [range expression]\"\n * @param {?function} normalizer Optional pre-processor for range expression\n * @return {boolean}\n */\n\n\nfunction compare(name, version, query, normalizer) {\n // check for exact match with no version\n if (name === query) {\n return true;\n } // check for non-matching names\n\n\n if (!query.startsWith(name)) {\n return false;\n } // full comparison with version\n\n\n var range = query.slice(name.length);\n\n if (version) {\n range = normalizer ? normalizer(range) : range;\n return VersionRange.contains(range, version);\n }\n\n return false;\n}\n/**\n * Normalizes `version` by stripping any \"NT\" prefix, but only on the Windows\n * platform.\n *\n * Mimics the stripping performed by the `UserAgentWindowsPlatform` PHP class.\n *\n * @param {string} version\n * @return {string}\n */\n\n\nfunction normalizePlatformVersion(version) {\n if (UserAgentData.platformName === 'Windows') {\n return version.replace(/^\\s*NT/, '');\n }\n\n return version;\n}\n/**\n * Provides client-side access to the authoritative PHP-generated User Agent\n * information supplied by the server.\n */\n\n\nvar UserAgent = {\n /**\n * Check if the User Agent browser matches `query`.\n *\n * `query` should be a string like \"Chrome\" or \"Chrome > 33\".\n *\n * Valid browser names include:\n *\n * - ACCESS NetFront\n * - AOL\n * - Amazon Silk\n * - Android\n * - BlackBerry\n * - BlackBerry PlayBook\n * - Chrome\n * - Chrome for iOS\n * - Chrome frame\n * - Facebook PHP SDK\n * - Facebook for iOS\n * - Firefox\n * - IE\n * - IE Mobile\n * - Mobile Safari\n * - Motorola Internet Browser\n * - Nokia\n * - Openwave Mobile Browser\n * - Opera\n * - Opera Mini\n * - Opera Mobile\n * - Safari\n * - UIWebView\n * - Unknown\n * - webOS\n * - etc...\n *\n * An authoritative list can be found in the PHP `BrowserDetector` class and\n * related classes in the same file (see calls to `new UserAgentBrowser` here:\n * https://fburl.com/50728104).\n *\n * @note Function results are memoized\n *\n * @param {string} query Query of the form \"Name [range expression]\"\n * @return {boolean}\n */\n isBrowser: function isBrowser(query) {\n return compare(UserAgentData.browserName, UserAgentData.browserFullVersion, query);\n },\n\n /**\n * Check if the User Agent browser uses a 32 or 64 bit architecture.\n *\n * @note Function results are memoized\n *\n * @param {string} query Query of the form \"32\" or \"64\".\n * @return {boolean}\n */\n isBrowserArchitecture: function isBrowserArchitecture(query) {\n return compare(UserAgentData.browserArchitecture, null, query);\n },\n\n /**\n * Check if the User Agent device matches `query`.\n *\n * `query` should be a string like \"iPhone\" or \"iPad\".\n *\n * Valid device names include:\n *\n * - Kindle\n * - Kindle Fire\n * - Unknown\n * - iPad\n * - iPhone\n * - iPod\n * - etc...\n *\n * An authoritative list can be found in the PHP `DeviceDetector` class and\n * related classes in the same file (see calls to `new UserAgentDevice` here:\n * https://fburl.com/50728332).\n *\n * @note Function results are memoized\n *\n * @param {string} query Query of the form \"Name\"\n * @return {boolean}\n */\n isDevice: function isDevice(query) {\n return compare(UserAgentData.deviceName, null, query);\n },\n\n /**\n * Check if the User Agent rendering engine matches `query`.\n *\n * `query` should be a string like \"WebKit\" or \"WebKit >= 537\".\n *\n * Valid engine names include:\n *\n * - Gecko\n * - Presto\n * - Trident\n * - WebKit\n * - etc...\n *\n * An authoritative list can be found in the PHP `RenderingEngineDetector`\n * class related classes in the same file (see calls to `new\n * UserAgentRenderingEngine` here: https://fburl.com/50728617).\n *\n * @note Function results are memoized\n *\n * @param {string} query Query of the form \"Name [range expression]\"\n * @return {boolean}\n */\n isEngine: function isEngine(query) {\n return compare(UserAgentData.engineName, UserAgentData.engineVersion, query);\n },\n\n /**\n * Check if the User Agent platform matches `query`.\n *\n * `query` should be a string like \"Windows\" or \"iOS 5 - 6\".\n *\n * Valid platform names include:\n *\n * - Android\n * - BlackBerry OS\n * - Java ME\n * - Linux\n * - Mac OS X\n * - Mac OS X Calendar\n * - Mac OS X Internet Account\n * - Symbian\n * - SymbianOS\n * - Windows\n * - Windows Mobile\n * - Windows Phone\n * - iOS\n * - iOS Facebook Integration Account\n * - iOS Facebook Social Sharing UI\n * - webOS\n * - Chrome OS\n * - etc...\n *\n * An authoritative list can be found in the PHP `PlatformDetector` class and\n * related classes in the same file (see calls to `new UserAgentPlatform`\n * here: https://fburl.com/50729226).\n *\n * @note Function results are memoized\n *\n * @param {string} query Query of the form \"Name [range expression]\"\n * @return {boolean}\n */\n isPlatform: function isPlatform(query) {\n return compare(UserAgentData.platformName, UserAgentData.platformFullVersion, query, normalizePlatformVersion);\n },\n\n /**\n * Check if the User Agent platform is a 32 or 64 bit architecture.\n *\n * @note Function results are memoized\n *\n * @param {string} query Query of the form \"32\" or \"64\".\n * @return {boolean}\n */\n isPlatformArchitecture: function isPlatformArchitecture(query) {\n return compare(UserAgentData.platformArchitecture, null, query);\n }\n};\nmodule.exports = mapObject(UserAgent, memoizeStringOnly);","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n/**\n * Usage note:\n * This module makes a best effort to export the same data we would internally.\n * At Facebook we use a server-generated module that does the parsing and\n * exports the data for the client to use. We can't rely on a server-side\n * implementation in open source so instead we make use of an open source\n * library to do the heavy lifting and then make some adjustments as necessary.\n * It's likely there will be some differences. Some we can smooth over.\n * Others are going to be harder.\n */\n'use strict';\n\nvar UAParser = require(\"ua-parser-js\");\n\nvar UNKNOWN = 'Unknown';\nvar PLATFORM_MAP = {\n 'Mac OS': 'Mac OS X'\n};\n/**\n * Convert from UAParser platform name to what we expect.\n */\n\nfunction convertPlatformName(name) {\n return PLATFORM_MAP[name] || name;\n}\n/**\n * Get the version number in parts. This is very naive. We actually get major\n * version as a part of UAParser already, which is generally good enough, but\n * let's get the minor just in case.\n */\n\n\nfunction getBrowserVersion(version) {\n if (!version) {\n return {\n major: '',\n minor: ''\n };\n }\n\n var parts = version.split('.');\n return {\n major: parts[0],\n minor: parts[1]\n };\n}\n/**\n * Get the UA data fom UAParser and then convert it to the format we're\n * expecting for our APIS.\n */\n\n\nvar parser = new UAParser();\nvar results = parser.getResult(); // Do some conversion first.\n\nvar browserVersionData = getBrowserVersion(results.browser.version);\nvar uaData = {\n browserArchitecture: results.cpu.architecture || UNKNOWN,\n browserFullVersion: results.browser.version || UNKNOWN,\n browserMinorVersion: browserVersionData.minor || UNKNOWN,\n browserName: results.browser.name || UNKNOWN,\n browserVersion: results.browser.major || UNKNOWN,\n deviceName: results.device.model || UNKNOWN,\n engineName: results.engine.name || UNKNOWN,\n engineVersion: results.engine.version || UNKNOWN,\n platformArchitecture: results.cpu.architecture || UNKNOWN,\n platformName: convertPlatformName(results.os.name) || UNKNOWN,\n platformVersion: results.os.version || UNKNOWN,\n platformFullVersion: results.os.version || UNKNOWN\n};\nmodule.exports = uaData;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n'use strict';\n\nvar invariant = require(\"./invariant\");\n\nvar componentRegex = /\\./;\nvar orRegex = /\\|\\|/;\nvar rangeRegex = /\\s+\\-\\s+/;\nvar modifierRegex = /^(<=|<|=|>=|~>|~|>|)?\\s*(.+)/;\nvar numericRegex = /^(\\d*)(.*)/;\n/**\n * Splits input `range` on \"||\" and returns true if any subrange matches\n * `version`.\n *\n * @param {string} range\n * @param {string} version\n * @returns {boolean}\n */\n\nfunction checkOrExpression(range, version) {\n var expressions = range.split(orRegex);\n\n if (expressions.length > 1) {\n return expressions.some(function (range) {\n return VersionRange.contains(range, version);\n });\n } else {\n range = expressions[0].trim();\n return checkRangeExpression(range, version);\n }\n}\n/**\n * Splits input `range` on \" - \" (the surrounding whitespace is required) and\n * returns true if version falls between the two operands.\n *\n * @param {string} range\n * @param {string} version\n * @returns {boolean}\n */\n\n\nfunction checkRangeExpression(range, version) {\n var expressions = range.split(rangeRegex);\n !(expressions.length > 0 && expressions.length <= 2) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'the \"-\" operator expects exactly 2 operands') : invariant(false) : void 0;\n\n if (expressions.length === 1) {\n return checkSimpleExpression(expressions[0], version);\n } else {\n var startVersion = expressions[0],\n endVersion = expressions[1];\n !(isSimpleVersion(startVersion) && isSimpleVersion(endVersion)) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'operands to the \"-\" operator must be simple (no modifiers)') : invariant(false) : void 0;\n return checkSimpleExpression('>=' + startVersion, version) && checkSimpleExpression('<=' + endVersion, version);\n }\n}\n/**\n * Checks if `range` matches `version`. `range` should be a \"simple\" range (ie.\n * not a compound range using the \" - \" or \"||\" operators).\n *\n * @param {string} range\n * @param {string} version\n * @returns {boolean}\n */\n\n\nfunction checkSimpleExpression(range, version) {\n range = range.trim();\n\n if (range === '') {\n return true;\n }\n\n var versionComponents = version.split(componentRegex);\n\n var _getModifierAndCompon = getModifierAndComponents(range),\n modifier = _getModifierAndCompon.modifier,\n rangeComponents = _getModifierAndCompon.rangeComponents;\n\n switch (modifier) {\n case '<':\n return checkLessThan(versionComponents, rangeComponents);\n\n case '<=':\n return checkLessThanOrEqual(versionComponents, rangeComponents);\n\n case '>=':\n return checkGreaterThanOrEqual(versionComponents, rangeComponents);\n\n case '>':\n return checkGreaterThan(versionComponents, rangeComponents);\n\n case '~':\n case '~>':\n return checkApproximateVersion(versionComponents, rangeComponents);\n\n default:\n return checkEqual(versionComponents, rangeComponents);\n }\n}\n/**\n * Checks whether `a` is less than `b`.\n *\n * @param {array} a\n * @param {array} b\n * @returns {boolean}\n */\n\n\nfunction checkLessThan(a, b) {\n return compareComponents(a, b) === -1;\n}\n/**\n * Checks whether `a` is less than or equal to `b`.\n *\n * @param {array} a\n * @param {array} b\n * @returns {boolean}\n */\n\n\nfunction checkLessThanOrEqual(a, b) {\n var result = compareComponents(a, b);\n return result === -1 || result === 0;\n}\n/**\n * Checks whether `a` is equal to `b`.\n *\n * @param {array} a\n * @param {array} b\n * @returns {boolean}\n */\n\n\nfunction checkEqual(a, b) {\n return compareComponents(a, b) === 0;\n}\n/**\n * Checks whether `a` is greater than or equal to `b`.\n *\n * @param {array} a\n * @param {array} b\n * @returns {boolean}\n */\n\n\nfunction checkGreaterThanOrEqual(a, b) {\n var result = compareComponents(a, b);\n return result === 1 || result === 0;\n}\n/**\n * Checks whether `a` is greater than `b`.\n *\n * @param {array} a\n * @param {array} b\n * @returns {boolean}\n */\n\n\nfunction checkGreaterThan(a, b) {\n return compareComponents(a, b) === 1;\n}\n/**\n * Checks whether `a` is \"reasonably close\" to `b` (as described in\n * https://www.npmjs.org/doc/misc/semver.html). For example, if `b` is \"1.3.1\"\n * then \"reasonably close\" is defined as \">= 1.3.1 and < 1.4\".\n *\n * @param {array} a\n * @param {array} b\n * @returns {boolean}\n */\n\n\nfunction checkApproximateVersion(a, b) {\n var lowerBound = b.slice();\n var upperBound = b.slice();\n\n if (upperBound.length > 1) {\n upperBound.pop();\n }\n\n var lastIndex = upperBound.length - 1;\n var numeric = parseInt(upperBound[lastIndex], 10);\n\n if (isNumber(numeric)) {\n upperBound[lastIndex] = numeric + 1 + '';\n }\n\n return checkGreaterThanOrEqual(a, lowerBound) && checkLessThan(a, upperBound);\n}\n/**\n * Extracts the optional modifier (<, <=, =, >=, >, ~, ~>) and version\n * components from `range`.\n *\n * For example, given `range` \">= 1.2.3\" returns an object with a `modifier` of\n * `\">=\"` and `components` of `[1, 2, 3]`.\n *\n * @param {string} range\n * @returns {object}\n */\n\n\nfunction getModifierAndComponents(range) {\n var rangeComponents = range.split(componentRegex);\n var matches = rangeComponents[0].match(modifierRegex);\n !matches ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'expected regex to match but it did not') : invariant(false) : void 0;\n return {\n modifier: matches[1],\n rangeComponents: [matches[2]].concat(rangeComponents.slice(1))\n };\n}\n/**\n * Determines if `number` is a number.\n *\n * @param {mixed} number\n * @returns {boolean}\n */\n\n\nfunction isNumber(number) {\n return !isNaN(number) && isFinite(number);\n}\n/**\n * Tests whether `range` is a \"simple\" version number without any modifiers\n * (\">\", \"~\" etc).\n *\n * @param {string} range\n * @returns {boolean}\n */\n\n\nfunction isSimpleVersion(range) {\n return !getModifierAndComponents(range).modifier;\n}\n/**\n * Zero-pads array `array` until it is at least `length` long.\n *\n * @param {array} array\n * @param {number} length\n */\n\n\nfunction zeroPad(array, length) {\n for (var i = array.length; i < length; i++) {\n array[i] = '0';\n }\n}\n/**\n * Normalizes `a` and `b` in preparation for comparison by doing the following:\n *\n * - zero-pads `a` and `b`\n * - marks any \"x\", \"X\" or \"*\" component in `b` as equivalent by zero-ing it out\n * in both `a` and `b`\n * - marks any final \"*\" component in `b` as a greedy wildcard by zero-ing it\n * and all of its successors in `a`\n *\n * @param {array} a\n * @param {array} b\n * @returns {array>}\n */\n\n\nfunction normalizeVersions(a, b) {\n a = a.slice();\n b = b.slice();\n zeroPad(a, b.length); // mark \"x\" and \"*\" components as equal\n\n for (var i = 0; i < b.length; i++) {\n var matches = b[i].match(/^[x*]$/i);\n\n if (matches) {\n b[i] = a[i] = '0'; // final \"*\" greedily zeros all remaining components\n\n if (matches[0] === '*' && i === b.length - 1) {\n for (var j = i; j < a.length; j++) {\n a[j] = '0';\n }\n }\n }\n }\n\n zeroPad(b, a.length);\n return [a, b];\n}\n/**\n * Returns the numerical -- not the lexicographical -- ordering of `a` and `b`.\n *\n * For example, `10-alpha` is greater than `2-beta`.\n *\n * @param {string} a\n * @param {string} b\n * @returns {number} -1, 0 or 1 to indicate whether `a` is less than, equal to,\n * or greater than `b`, respectively\n */\n\n\nfunction compareNumeric(a, b) {\n var aPrefix = a.match(numericRegex)[1];\n var bPrefix = b.match(numericRegex)[1];\n var aNumeric = parseInt(aPrefix, 10);\n var bNumeric = parseInt(bPrefix, 10);\n\n if (isNumber(aNumeric) && isNumber(bNumeric) && aNumeric !== bNumeric) {\n return compare(aNumeric, bNumeric);\n } else {\n return compare(a, b);\n }\n}\n/**\n * Returns the ordering of `a` and `b`.\n *\n * @param {string|number} a\n * @param {string|number} b\n * @returns {number} -1, 0 or 1 to indicate whether `a` is less than, equal to,\n * or greater than `b`, respectively\n */\n\n\nfunction compare(a, b) {\n !(typeof a === typeof b) ? process.env.NODE_ENV !== \"production\" ? invariant(false, '\"a\" and \"b\" must be of the same type') : invariant(false) : void 0;\n\n if (a > b) {\n return 1;\n } else if (a < b) {\n return -1;\n } else {\n return 0;\n }\n}\n/**\n * Compares arrays of version components.\n *\n * @param {array} a\n * @param {array} b\n * @returns {number} -1, 0 or 1 to indicate whether `a` is less than, equal to,\n * or greater than `b`, respectively\n */\n\n\nfunction compareComponents(a, b) {\n var _normalizeVersions = normalizeVersions(a, b),\n aNormalized = _normalizeVersions[0],\n bNormalized = _normalizeVersions[1];\n\n for (var i = 0; i < bNormalized.length; i++) {\n var result = compareNumeric(aNormalized[i], bNormalized[i]);\n\n if (result) {\n return result;\n }\n }\n\n return 0;\n}\n\nvar VersionRange = {\n /**\n * Checks whether `version` satisfies the `range` specification.\n *\n * We support a subset of the expressions defined in\n * https://www.npmjs.org/doc/misc/semver.html:\n *\n * version Must match version exactly\n * =version Same as just version\n * >version Must be greater than version\n * >=version Must be greater than or equal to version\n * = 1.2.3 and < 1.3\"\n * ~>version Equivalent to ~version\n * 1.2.x Must match \"1.2.x\", where \"x\" is a wildcard that matches\n * anything\n * 1.2.* Similar to \"1.2.x\", but \"*\" in the trailing position is a\n * \"greedy\" wildcard, so will match any number of additional\n * components:\n * \"1.2.*\" will match \"1.2.1\", \"1.2.1.1\", \"1.2.1.1.1\" etc\n * * Any version\n * \"\" (Empty string) Same as *\n * v1 - v2 Equivalent to \">= v1 and <= v2\"\n * r1 || r2 Passes if either r1 or r2 are satisfied\n *\n * @param {string} range\n * @param {string} version\n * @returns {boolean}\n */\n contains: function contains(range, version) {\n return checkOrExpression(range.trim(), version.trim());\n }\n};\nmodule.exports = VersionRange;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar _hyphenPattern = /-(.)/g;\n/**\n * Camelcases a hyphenated string, for example:\n *\n * > camelize('background-color')\n * < \"backgroundColor\"\n *\n * @param {string} string\n * @return {string}\n */\n\nfunction camelize(string) {\n return string.replace(_hyphenPattern, function (_, character) {\n return character.toUpperCase();\n });\n}\n\nmodule.exports = camelize;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nvar isTextNode = require(\"./isTextNode\");\n/*eslint-disable no-bitwise */\n\n/**\n * Checks if a given DOM node contains or is another DOM node.\n */\n\n\nfunction containsNode(outerNode, innerNode) {\n if (!outerNode || !innerNode) {\n return false;\n } else if (outerNode === innerNode) {\n return true;\n } else if (isTextNode(outerNode)) {\n return false;\n } else if (isTextNode(innerNode)) {\n return containsNode(outerNode, innerNode.parentNode);\n } else if ('contains' in outerNode) {\n return outerNode.contains(innerNode);\n } else if (outerNode.compareDocumentPosition) {\n return !!(outerNode.compareDocumentPosition(innerNode) & 16);\n } else {\n return false;\n }\n}\n\nmodule.exports = containsNode;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar invariant = require(\"./invariant\");\n/**\n * Convert array-like objects to arrays.\n *\n * This API assumes the caller knows the contents of the data type. For less\n * well defined inputs use createArrayFromMixed.\n *\n * @param {object|function|filelist} obj\n * @return {array}\n */\n\n\nfunction toArray(obj) {\n var length = obj.length; // Some browsers builtin objects can report typeof 'function' (e.g. NodeList\n // in old versions of Safari).\n\n !(!Array.isArray(obj) && (typeof obj === 'object' || typeof obj === 'function')) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'toArray: Array-like object expected') : invariant(false) : void 0;\n !(typeof length === 'number') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'toArray: Object needs a length property') : invariant(false) : void 0;\n !(length === 0 || length - 1 in obj) ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'toArray: Object should have keys for indices') : invariant(false) : void 0;\n !(typeof obj.callee !== 'function') ? process.env.NODE_ENV !== \"production\" ? invariant(false, 'toArray: Object can\\'t be `arguments`. Use rest params ' + '(function(...args) {}) or Array.from() instead.') : invariant(false) : void 0; // Old IE doesn't give collections access to hasOwnProperty. Assume inputs\n // without method will throw during the slice call and skip straight to the\n // fallback.\n\n if (obj.hasOwnProperty) {\n try {\n return Array.prototype.slice.call(obj);\n } catch (e) {// IE < 9 does not support Array#slice on collections objects\n }\n } // Fall back to copying key by key. This assumes all keys have a value,\n // so will not preserve sparsely populated inputs.\n\n\n var ret = Array(length);\n\n for (var ii = 0; ii < length; ii++) {\n ret[ii] = obj[ii];\n }\n\n return ret;\n}\n/**\n * Perform a heuristic test to determine if an object is \"array-like\".\n *\n * A monk asked Joshu, a Zen master, \"Has a dog Buddha nature?\"\n * Joshu replied: \"Mu.\"\n *\n * This function determines if its argument has \"array nature\": it returns\n * true if the argument is an actual array, an `arguments' object, or an\n * HTMLCollection (e.g. node.childNodes or node.getElementsByTagName()).\n *\n * It will return false for other array-like objects like Filelist.\n *\n * @param {*} obj\n * @return {boolean}\n */\n\n\nfunction hasArrayNature(obj) {\n return (// not null/false\n !!obj && ( // arrays are objects, NodeLists are functions in Safari\n typeof obj == 'object' || typeof obj == 'function') && // quacks like an array\n 'length' in obj && // not window\n !('setInterval' in obj) && // no DOM node should be considered an array-like\n // a 'select' element has 'length' and 'item' properties on IE8\n typeof obj.nodeType != 'number' && ( // a real array\n Array.isArray(obj) || // arguments\n 'callee' in obj || // HTMLCollection/NodeList\n 'item' in obj)\n );\n}\n/**\n * Ensure that the argument is an array by wrapping it in an array if it is not.\n * Creates a copy of the argument if it is already an array.\n *\n * This is mostly useful idiomatically:\n *\n * var createArrayFromMixed = require('createArrayFromMixed');\n *\n * function takesOneOrMoreThings(things) {\n * things = createArrayFromMixed(things);\n * ...\n * }\n *\n * This allows you to treat `things' as an array, but accept scalars in the API.\n *\n * If you need to convert an array-like object, like `arguments`, into an array\n * use toArray instead.\n *\n * @param {*} obj\n * @return {array}\n */\n\n\nfunction createArrayFromMixed(obj) {\n if (!hasArrayNature(obj)) {\n return [obj];\n } else if (Array.isArray(obj)) {\n return obj.slice();\n } else {\n return toArray(obj);\n }\n}\n\nmodule.exports = createArrayFromMixed;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n\n/**\n * This function is used to mark string literals representing CSS class names\n * so that they can be transformed statically. This allows for modularization\n * and minification of CSS class names.\n *\n * In static_upstream, this function is actually implemented, but it should\n * eventually be replaced with something more descriptive, and the transform\n * that is used in the main stack should be ported for use elsewhere.\n *\n * @param string|object className to modularize, or an object of key/values.\n * In the object case, the values are conditions that\n * determine if the className keys should be included.\n * @param [string ...] Variable list of classNames in the string case.\n * @return string Renderable space-separated CSS className.\n */\nfunction cx(classNames) {\n if (typeof classNames == 'object') {\n return Object.keys(classNames).filter(function (className) {\n return classNames[className];\n }).map(replace).join(' ');\n }\n\n return Array.prototype.map.call(arguments, replace).join(' ');\n}\n\nfunction replace(str) {\n return str.replace(/\\//g, '-');\n}\n\nmodule.exports = cx;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nfunction makeEmptyFunction(arg) {\n return function () {\n return arg;\n };\n}\n/**\n * This function accepts and discards inputs; it has no side effects. This is\n * primarily useful idiomatically for overridable function endpoints which\n * always need to be callable, since JS lacks a null-call idiom ala Cocoa.\n */\n\n\nvar emptyFunction = function emptyFunction() {};\n\nemptyFunction.thatReturns = makeEmptyFunction;\nemptyFunction.thatReturnsFalse = makeEmptyFunction(false);\nemptyFunction.thatReturnsTrue = makeEmptyFunction(true);\nemptyFunction.thatReturnsNull = makeEmptyFunction(null);\n\nemptyFunction.thatReturnsThis = function () {\n return this;\n};\n\nemptyFunction.thatReturnsArgument = function (arg) {\n return arg;\n};\n\nmodule.exports = emptyFunction;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\n\n/* eslint-disable fb-www/typeof-undefined */\n\n/**\n * Same as document.activeElement but wraps in a try-catch block. In IE it is\n * not safe to call document.activeElement if there is nothing focused.\n *\n * The activeElement will be null only if the document or document body is not\n * yet defined.\n *\n * @param {?DOMDocument} doc Defaults to current document.\n * @return {?DOMElement}\n */\nfunction getActiveElement(doc)\n/*?DOMElement*/\n{\n doc = doc || (typeof document !== 'undefined' ? document : undefined);\n\n if (typeof doc === 'undefined') {\n return null;\n }\n\n try {\n return doc.activeElement || doc.body;\n } catch (e) {\n return doc.body;\n }\n}\n\nmodule.exports = getActiveElement;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\n'use strict';\n\nvar isWebkit = typeof navigator !== 'undefined' && navigator.userAgent.indexOf('AppleWebKit') > -1;\n/**\n * Gets the element with the document scroll properties such as `scrollLeft` and\n * `scrollHeight`. This may differ across different browsers.\n *\n * NOTE: The return value can be null if the DOM is not yet ready.\n *\n * @param {?DOMDocument} doc Defaults to current document.\n * @return {?DOMElement}\n */\n\nfunction getDocumentScrollElement(doc) {\n doc = doc || document;\n\n if (doc.scrollingElement) {\n return doc.scrollingElement;\n }\n\n return !isWebkit && doc.compatMode === 'CSS1Compat' ? doc.documentElement : doc.body;\n}\n\nmodule.exports = getDocumentScrollElement;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar getElementRect = require(\"./getElementRect\");\n/**\n * Gets an element's position in pixels relative to the viewport. The returned\n * object represents the position of the element's top left corner.\n *\n * @param {DOMElement} element\n * @return {object}\n */\n\n\nfunction getElementPosition(element) {\n var rect = getElementRect(element);\n return {\n x: rect.left,\n y: rect.top,\n width: rect.right - rect.left,\n height: rect.bottom - rect.top\n };\n}\n\nmodule.exports = getElementPosition;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar containsNode = require(\"./containsNode\");\n/**\n * Gets an element's bounding rect in pixels relative to the viewport.\n *\n * @param {DOMElement} elem\n * @return {object}\n */\n\n\nfunction getElementRect(elem) {\n var docElem = elem.ownerDocument.documentElement; // FF 2, Safari 3 and Opera 9.5- do not support getBoundingClientRect().\n // IE9- will throw if the element is not in the document.\n\n if (!('getBoundingClientRect' in elem) || !containsNode(docElem, elem)) {\n return {\n left: 0,\n right: 0,\n top: 0,\n bottom: 0\n };\n } // Subtracts clientTop/Left because IE8- added a 2px border to the\n // element (see http://fburl.com/1493213). IE 7 in\n // Quicksmode does not report clientLeft/clientTop so there\n // will be an unaccounted offset of 2px when in quirksmode\n\n\n var rect = elem.getBoundingClientRect();\n return {\n left: Math.round(rect.left) - docElem.clientLeft,\n right: Math.round(rect.right) - docElem.clientLeft,\n top: Math.round(rect.top) - docElem.clientTop,\n bottom: Math.round(rect.bottom) - docElem.clientTop\n };\n}\n\nmodule.exports = getElementRect;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\n'use strict';\n\nvar getDocumentScrollElement = require(\"./getDocumentScrollElement\");\n\nvar getUnboundedScrollPosition = require(\"./getUnboundedScrollPosition\");\n/**\n * Gets the scroll position of the supplied element or window.\n *\n * The return values are bounded. This means that if the scroll position is\n * negative or exceeds the element boundaries (which is possible using inertial\n * scrolling), you will get zero or the maximum scroll position, respectively.\n *\n * If you need the unbound scroll position, use `getUnboundedScrollPosition`.\n *\n * @param {DOMWindow|DOMElement} scrollable\n * @return {object} Map with `x` and `y` keys.\n */\n\n\nfunction getScrollPosition(scrollable) {\n var documentScrollElement = getDocumentScrollElement(scrollable.ownerDocument || scrollable.document);\n\n if (scrollable.Window && scrollable instanceof scrollable.Window) {\n scrollable = documentScrollElement;\n }\n\n var scrollPosition = getUnboundedScrollPosition(scrollable);\n var viewport = scrollable === documentScrollElement ? scrollable.ownerDocument.documentElement : scrollable;\n var xMax = scrollable.scrollWidth - viewport.clientWidth;\n var yMax = scrollable.scrollHeight - viewport.clientHeight;\n scrollPosition.x = Math.max(0, Math.min(scrollPosition.x, xMax));\n scrollPosition.y = Math.max(0, Math.min(scrollPosition.y, yMax));\n return scrollPosition;\n}\n\nmodule.exports = getScrollPosition;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar camelize = require(\"./camelize\");\n\nvar hyphenate = require(\"./hyphenate\");\n\nfunction asString(value)\n/*?string*/\n{\n return value == null ? value : String(value);\n}\n\nfunction getStyleProperty(\n/*DOMNode*/\nnode,\n/*string*/\nname)\n/*?string*/\n{\n var computedStyle; // W3C Standard\n\n if (window.getComputedStyle) {\n // In certain cases such as within an iframe in FF3, this returns null.\n computedStyle = window.getComputedStyle(node, null);\n\n if (computedStyle) {\n return asString(computedStyle.getPropertyValue(hyphenate(name)));\n }\n } // Safari\n\n\n if (document.defaultView && document.defaultView.getComputedStyle) {\n computedStyle = document.defaultView.getComputedStyle(node, null); // A Safari bug causes this to return null for `display: none` elements.\n\n if (computedStyle) {\n return asString(computedStyle.getPropertyValue(hyphenate(name)));\n }\n\n if (name === 'display') {\n return 'none';\n }\n } // Internet Explorer\n\n\n if (node.currentStyle) {\n if (name === 'float') {\n return asString(node.currentStyle.cssFloat || node.currentStyle.styleFloat);\n }\n\n return asString(node.currentStyle[camelize(name)]);\n }\n\n return asString(node.style && node.style[camelize(name)]);\n}\n\nmodule.exports = getStyleProperty;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\n'use strict';\n/**\n * Gets the scroll position of the supplied element or window.\n *\n * The return values are unbounded, unlike `getScrollPosition`. This means they\n * may be negative or exceed the element boundaries (which is possible using\n * inertial scrolling).\n *\n * @param {DOMWindow|DOMElement} scrollable\n * @return {object} Map with `x` and `y` keys.\n */\n\nfunction getUnboundedScrollPosition(scrollable) {\n if (scrollable.Window && scrollable instanceof scrollable.Window) {\n return {\n x: scrollable.pageXOffset || scrollable.document.documentElement.scrollLeft,\n y: scrollable.pageYOffset || scrollable.document.documentElement.scrollTop\n };\n }\n\n return {\n x: scrollable.scrollLeft,\n y: scrollable.scrollTop\n };\n}\n\nmodule.exports = getUnboundedScrollPosition;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n * @typechecks\n */\nfunction getViewportWidth() {\n var width;\n\n if (document.documentElement) {\n width = document.documentElement.clientWidth;\n }\n\n if (!width && document.body) {\n width = document.body.clientWidth;\n }\n\n return width || 0;\n}\n\nfunction getViewportHeight() {\n var height;\n\n if (document.documentElement) {\n height = document.documentElement.clientHeight;\n }\n\n if (!height && document.body) {\n height = document.body.clientHeight;\n }\n\n return height || 0;\n}\n/**\n * Gets the viewport dimensions including any scrollbars.\n */\n\n\nfunction getViewportDimensions() {\n return {\n width: window.innerWidth || getViewportWidth(),\n height: window.innerHeight || getViewportHeight()\n };\n}\n/**\n * Gets the viewport dimensions excluding any scrollbars.\n */\n\n\ngetViewportDimensions.withoutScrollbars = function () {\n return {\n width: getViewportWidth(),\n height: getViewportHeight()\n };\n};\n\nmodule.exports = getViewportDimensions;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar _uppercasePattern = /([A-Z])/g;\n/**\n * Hyphenates a camelcased string, for example:\n *\n * > hyphenate('backgroundColor')\n * < \"background-color\"\n *\n * For CSS style names, use `hyphenateStyleName` instead which works properly\n * with all vendor prefixes, including `ms`.\n *\n * @param {string} string\n * @return {string}\n */\n\nfunction hyphenate(string) {\n return string.replace(_uppercasePattern, '-$1').toLowerCase();\n}\n\nmodule.exports = hyphenate;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\n'use strict';\n\nvar validateFormat = process.env.NODE_ENV !== \"production\" ? function (format) {\n if (format === undefined) {\n throw new Error('invariant(...): Second argument must be a string.');\n }\n} : function (format) {};\n/**\n * Use invariant() to assert state which your program assumes to be true.\n *\n * Provide sprintf-style format (only %s is supported) and arguments to provide\n * information about what broke and what you were expecting.\n *\n * The invariant message will be stripped in production, but the invariant will\n * remain to ensure logic does not differ in production.\n */\n\nfunction invariant(condition, format) {\n for (var _len = arguments.length, args = new Array(_len > 2 ? _len - 2 : 0), _key = 2; _key < _len; _key++) {\n args[_key - 2] = arguments[_key];\n }\n\n validateFormat(format);\n\n if (!condition) {\n var error;\n\n if (format === undefined) {\n error = new Error('Minified exception occurred; use the non-minified dev environment ' + 'for the full error message and additional helpful warnings.');\n } else {\n var argIndex = 0;\n error = new Error(format.replace(/%s/g, function () {\n return String(args[argIndex++]);\n }));\n error.name = 'Invariant Violation';\n }\n\n error.framesToPop = 1; // Skip invariant's own stack frame.\n\n throw error;\n }\n}\n\nmodule.exports = invariant;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\n\n/**\n * @param {*} object The object to check.\n * @return {boolean} Whether or not the object is a DOM node.\n */\nfunction isNode(object) {\n var doc = object ? object.ownerDocument || object : document;\n var defaultView = doc.defaultView || window;\n return !!(object && (typeof defaultView.Node === 'function' ? object instanceof defaultView.Node : typeof object === 'object' && typeof object.nodeType === 'number' && typeof object.nodeName === 'string'));\n}\n\nmodule.exports = isNode;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * @typechecks\n */\nvar isNode = require(\"./isNode\");\n/**\n * @param {*} object The object to check.\n * @return {boolean} Whether or not the object is a DOM text node.\n */\n\n\nfunction isTextNode(object) {\n return isNode(object) && object.nodeType == 3;\n}\n\nmodule.exports = isTextNode;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n * @typechecks static-only\n */\n'use strict';\n/**\n * Combines multiple className strings into one.\n */\n\nfunction joinClasses(className) {\n var newClassName = className || '';\n var argLength = arguments.length;\n\n if (argLength > 1) {\n for (var index = 1; index < argLength; index++) {\n var nextClass = arguments[index];\n\n if (nextClass) {\n newClassName = (newClassName ? newClassName + ' ' : '') + nextClass;\n }\n }\n }\n\n return newClassName;\n}\n\nmodule.exports = joinClasses;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n'use strict';\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n/**\n * Executes the provided `callback` once for each enumerable own property in the\n * object and constructs a new object from the results. The `callback` is\n * invoked with three arguments:\n *\n * - the property value\n * - the property name\n * - the object being traversed\n *\n * Properties that are added after the call to `mapObject` will not be visited\n * by `callback`. If the values of existing properties are changed, the value\n * passed to `callback` will be the value at the time `mapObject` visits them.\n * Properties that are deleted before being visited are not visited.\n *\n * @grep function objectMap()\n * @grep function objMap()\n *\n * @param {?object} object\n * @param {function} callback\n * @param {*} context\n * @return {?object}\n */\n\nfunction mapObject(object, callback, context) {\n if (!object) {\n return null;\n }\n\n var result = {};\n\n for (var name in object) {\n if (hasOwnProperty.call(object, name)) {\n result[name] = callback.call(context, object[name], name, object);\n }\n }\n\n return result;\n}\n\nmodule.exports = mapObject;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n * @typechecks static-only\n */\n'use strict';\n/**\n * Memoizes the return value of a function that accepts one string argument.\n */\n\nfunction memoizeStringOnly(callback) {\n var cache = {};\n return function (string) {\n if (!cache.hasOwnProperty(string)) {\n cache[string] = callback.call(this, string);\n }\n\n return cache[string];\n };\n}\n\nmodule.exports = memoizeStringOnly;","\"use strict\";\n\n/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n * \n */\nvar nullthrows = function nullthrows(x) {\n if (x != null) {\n return x;\n }\n\n throw new Error(\"Got unexpected null or undefined\");\n};\n\nmodule.exports = nullthrows;","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n'use strict'; // setimmediate adds setImmediate to the global. We want to make sure we export\n// the actual function.\n\nrequire(\"setimmediate\");\n\nmodule.exports = global.setImmediate;","/**\n * Copyright (c) 2014-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n *\n */\n'use strict';\n\nvar emptyFunction = require(\"./emptyFunction\");\n/**\n * Similar to invariant but only logs a warning if the condition is not met.\n * This can be used to log issues in development environments in critical\n * paths. Removing the logging code for production environments will keep the\n * same logic and follow the same code paths.\n */\n\n\nfunction printWarning(format) {\n for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n args[_key - 1] = arguments[_key];\n }\n\n var argIndex = 0;\n var message = 'Warning: ' + format.replace(/%s/g, function () {\n return args[argIndex++];\n });\n\n if (typeof console !== 'undefined') {\n console.error(message);\n }\n\n try {\n // --- Welcome to debugging React ---\n // This error was thrown as a convenience so that you can use this stack\n // to find the callsite that caused this warning to fire.\n throw new Error(message);\n } catch (x) {}\n}\n\nvar warning = process.env.NODE_ENV !== \"production\" ? function (condition, format) {\n if (format === undefined) {\n throw new Error('`warning(condition, format, ...args)` requires a warning ' + 'message argument');\n }\n\n if (!condition) {\n for (var _len2 = arguments.length, args = new Array(_len2 > 2 ? _len2 - 2 : 0), _key2 = 2; _key2 < _len2; _key2++) {\n args[_key2 - 2] = arguments[_key2];\n }\n\n printWarning.apply(void 0, [format].concat(args));\n }\n} : emptyFunction;\nmodule.exports = warning;","'use strict';\n\nvar reactIs = require('react-is');\n\n/**\n * Copyright 2015, Yahoo! Inc.\n * Copyrights licensed under the New BSD License. See the accompanying LICENSE file for terms.\n */\nvar REACT_STATICS = {\n childContextTypes: true,\n contextType: true,\n contextTypes: true,\n defaultProps: true,\n displayName: true,\n getDefaultProps: true,\n getDerivedStateFromError: true,\n getDerivedStateFromProps: true,\n mixins: true,\n propTypes: true,\n type: true\n};\nvar KNOWN_STATICS = {\n name: true,\n length: true,\n prototype: true,\n caller: true,\n callee: true,\n arguments: true,\n arity: true\n};\nvar FORWARD_REF_STATICS = {\n '$$typeof': true,\n render: true,\n defaultProps: true,\n displayName: true,\n propTypes: true\n};\nvar MEMO_STATICS = {\n '$$typeof': true,\n compare: true,\n defaultProps: true,\n displayName: true,\n propTypes: true,\n type: true\n};\nvar TYPE_STATICS = {};\nTYPE_STATICS[reactIs.ForwardRef] = FORWARD_REF_STATICS;\nTYPE_STATICS[reactIs.Memo] = MEMO_STATICS;\n\nfunction getStatics(component) {\n // React v16.11 and below\n if (reactIs.isMemo(component)) {\n return MEMO_STATICS;\n } // React v16.12 and above\n\n\n return TYPE_STATICS[component['$$typeof']] || REACT_STATICS;\n}\n\nvar defineProperty = Object.defineProperty;\nvar getOwnPropertyNames = Object.getOwnPropertyNames;\nvar getOwnPropertySymbols = Object.getOwnPropertySymbols;\nvar getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\nvar getPrototypeOf = Object.getPrototypeOf;\nvar objectPrototype = Object.prototype;\nfunction hoistNonReactStatics(targetComponent, sourceComponent, blacklist) {\n if (typeof sourceComponent !== 'string') {\n // don't hoist over string (html) components\n if (objectPrototype) {\n var inheritedComponent = getPrototypeOf(sourceComponent);\n\n if (inheritedComponent && inheritedComponent !== objectPrototype) {\n hoistNonReactStatics(targetComponent, inheritedComponent, blacklist);\n }\n }\n\n var keys = getOwnPropertyNames(sourceComponent);\n\n if (getOwnPropertySymbols) {\n keys = keys.concat(getOwnPropertySymbols(sourceComponent));\n }\n\n var targetStatics = getStatics(targetComponent);\n var sourceStatics = getStatics(sourceComponent);\n\n for (var i = 0; i < keys.length; ++i) {\n var key = keys[i];\n\n if (!KNOWN_STATICS[key] && !(blacklist && blacklist[key]) && !(sourceStatics && sourceStatics[key]) && !(targetStatics && targetStatics[key])) {\n var descriptor = getOwnPropertyDescriptor(sourceComponent, key);\n\n try {\n // Avoid failures from read-only properties\n defineProperty(targetComponent, key, descriptor);\n } catch (e) {}\n }\n }\n }\n\n return targetComponent;\n}\n\nmodule.exports = hoistNonReactStatics;\n","/** @license React v16.13.1\n * react-is.production.min.js\n *\n * Copyright (c) Facebook, Inc. and its affiliates.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\n'use strict';var b=\"function\"===typeof Symbol&&Symbol.for,c=b?Symbol.for(\"react.element\"):60103,d=b?Symbol.for(\"react.portal\"):60106,e=b?Symbol.for(\"react.fragment\"):60107,f=b?Symbol.for(\"react.strict_mode\"):60108,g=b?Symbol.for(\"react.profiler\"):60114,h=b?Symbol.for(\"react.provider\"):60109,k=b?Symbol.for(\"react.context\"):60110,l=b?Symbol.for(\"react.async_mode\"):60111,m=b?Symbol.for(\"react.concurrent_mode\"):60111,n=b?Symbol.for(\"react.forward_ref\"):60112,p=b?Symbol.for(\"react.suspense\"):60113,q=b?\nSymbol.for(\"react.suspense_list\"):60120,r=b?Symbol.for(\"react.memo\"):60115,t=b?Symbol.for(\"react.lazy\"):60116,v=b?Symbol.for(\"react.block\"):60121,w=b?Symbol.for(\"react.fundamental\"):60117,x=b?Symbol.for(\"react.responder\"):60118,y=b?Symbol.for(\"react.scope\"):60119;\nfunction z(a){if(\"object\"===typeof a&&null!==a){var u=a.$$typeof;switch(u){case c:switch(a=a.type,a){case l:case m:case e:case g:case f:case p:return a;default:switch(a=a&&a.$$typeof,a){case k:case n:case t:case r:case h:return a;default:return u}}case d:return u}}}function A(a){return z(a)===m}exports.AsyncMode=l;exports.ConcurrentMode=m;exports.ContextConsumer=k;exports.ContextProvider=h;exports.Element=c;exports.ForwardRef=n;exports.Fragment=e;exports.Lazy=t;exports.Memo=r;exports.Portal=d;\nexports.Profiler=g;exports.StrictMode=f;exports.Suspense=p;exports.isAsyncMode=function(a){return A(a)||z(a)===l};exports.isConcurrentMode=A;exports.isContextConsumer=function(a){return z(a)===k};exports.isContextProvider=function(a){return z(a)===h};exports.isElement=function(a){return\"object\"===typeof a&&null!==a&&a.$$typeof===c};exports.isForwardRef=function(a){return z(a)===n};exports.isFragment=function(a){return z(a)===e};exports.isLazy=function(a){return z(a)===t};\nexports.isMemo=function(a){return z(a)===r};exports.isPortal=function(a){return z(a)===d};exports.isProfiler=function(a){return z(a)===g};exports.isStrictMode=function(a){return z(a)===f};exports.isSuspense=function(a){return z(a)===p};\nexports.isValidElementType=function(a){return\"string\"===typeof a||\"function\"===typeof a||a===e||a===m||a===g||a===f||a===p||a===q||\"object\"===typeof a&&null!==a&&(a.$$typeof===t||a.$$typeof===r||a.$$typeof===h||a.$$typeof===k||a.$$typeof===n||a.$$typeof===w||a.$$typeof===x||a.$$typeof===y||a.$$typeof===v)};exports.typeOf=z;\n","'use strict';\n\nif (process.env.NODE_ENV === 'production') {\n module.exports = require('./cjs/react-is.production.min.js');\n} else {\n module.exports = require('./cjs/react-is.development.js');\n}\n","/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh */\nexports.read = function (buffer, offset, isLE, mLen, nBytes) {\n var e, m\n var eLen = (nBytes * 8) - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var nBits = -7\n var i = isLE ? (nBytes - 1) : 0\n var d = isLE ? -1 : 1\n var s = buffer[offset + i]\n\n i += d\n\n e = s & ((1 << (-nBits)) - 1)\n s >>= (-nBits)\n nBits += eLen\n for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n m = e & ((1 << (-nBits)) - 1)\n e >>= (-nBits)\n nBits += mLen\n for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n if (e === 0) {\n e = 1 - eBias\n } else if (e === eMax) {\n return m ? NaN : ((s ? -1 : 1) * Infinity)\n } else {\n m = m + Math.pow(2, mLen)\n e = e - eBias\n }\n return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n var e, m, c\n var eLen = (nBytes * 8) - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n var i = isLE ? 0 : (nBytes - 1)\n var d = isLE ? 1 : -1\n var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n value = Math.abs(value)\n\n if (isNaN(value) || value === Infinity) {\n m = isNaN(value) ? 1 : 0\n e = eMax\n } else {\n e = Math.floor(Math.log(value) / Math.LN2)\n if (value * (c = Math.pow(2, -e)) < 1) {\n e--\n c *= 2\n }\n if (e + eBias >= 1) {\n value += rt / c\n } else {\n value += rt * Math.pow(2, 1 - eBias)\n }\n if (value * c >= 2) {\n e++\n c /= 2\n }\n\n if (e + eBias >= eMax) {\n m = 0\n e = eMax\n } else if (e + eBias >= 1) {\n m = ((value * c) - 1) * Math.pow(2, mLen)\n e = e + eBias\n } else {\n m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n e = 0\n }\n }\n\n for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n e = (e << mLen) | m\n eLen += mLen\n for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n buffer[offset + i - d] |= s * 128\n}\n","/**\n * MIT License\n * \n * Copyright (c) 2014-present, Lee Byron and other contributors.\n * \n * Permission is hereby granted, free of charge, to any person obtaining a copy\n * of this software and associated documentation files (the \"Software\"), to deal\n * in the Software without restriction, including without limitation the rights\n * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n * copies of the Software, and to permit persons to whom the Software is\n * furnished to do so, subject to the following conditions:\n * \n * The above copyright notice and this permission notice shall be included in all\n * copies or substantial portions of the Software.\n * \n * THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n * SOFTWARE.\n */\nvar DELETE = 'delete';\n\n// Constants describing the size of trie nodes.\nvar SHIFT = 5; // Resulted in best performance after ______?\nvar SIZE = 1 << SHIFT;\nvar MASK = SIZE - 1;\n\n// A consistent shared value representing \"not set\" which equals nothing other\n// than itself, and nothing that could be provided externally.\nvar NOT_SET = {};\n\n// Boolean references, Rough equivalent of `bool &`.\nfunction MakeRef() {\n return { value: false };\n}\n\nfunction SetRef(ref) {\n if (ref) {\n ref.value = true;\n }\n}\n\n// A function which returns a value representing an \"owner\" for transient writes\n// to tries. The return value will only ever equal itself, and will not equal\n// the return of any subsequent call of this function.\nfunction OwnerID() {}\n\nfunction ensureSize(iter) {\n if (iter.size === undefined) {\n iter.size = iter.__iterate(returnTrue);\n }\n return iter.size;\n}\n\nfunction wrapIndex(iter, index) {\n // This implements \"is array index\" which the ECMAString spec defines as:\n //\n // A String property name P is an array index if and only if\n // ToString(ToUint32(P)) is equal to P and ToUint32(P) is not equal\n // to 2^32−1.\n //\n // http://www.ecma-international.org/ecma-262/6.0/#sec-array-exotic-objects\n if (typeof index !== 'number') {\n var uint32Index = index >>> 0; // N >>> 0 is shorthand for ToUint32\n if ('' + uint32Index !== index || uint32Index === 4294967295) {\n return NaN;\n }\n index = uint32Index;\n }\n return index < 0 ? ensureSize(iter) + index : index;\n}\n\nfunction returnTrue() {\n return true;\n}\n\nfunction wholeSlice(begin, end, size) {\n return (\n ((begin === 0 && !isNeg(begin)) ||\n (size !== undefined && begin <= -size)) &&\n (end === undefined || (size !== undefined && end >= size))\n );\n}\n\nfunction resolveBegin(begin, size) {\n return resolveIndex(begin, size, 0);\n}\n\nfunction resolveEnd(end, size) {\n return resolveIndex(end, size, size);\n}\n\nfunction resolveIndex(index, size, defaultIndex) {\n // Sanitize indices using this shorthand for ToInt32(argument)\n // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32\n return index === undefined\n ? defaultIndex\n : isNeg(index)\n ? size === Infinity\n ? size\n : Math.max(0, size + index) | 0\n : size === undefined || size === index\n ? index\n : Math.min(size, index) | 0;\n}\n\nfunction isNeg(value) {\n // Account for -0 which is negative, but not less than 0.\n return value < 0 || (value === 0 && 1 / value === -Infinity);\n}\n\nvar IS_COLLECTION_SYMBOL = '@@__IMMUTABLE_ITERABLE__@@';\n\nfunction isCollection(maybeCollection) {\n return Boolean(maybeCollection && maybeCollection[IS_COLLECTION_SYMBOL]);\n}\n\nvar IS_KEYED_SYMBOL = '@@__IMMUTABLE_KEYED__@@';\n\nfunction isKeyed(maybeKeyed) {\n return Boolean(maybeKeyed && maybeKeyed[IS_KEYED_SYMBOL]);\n}\n\nvar IS_INDEXED_SYMBOL = '@@__IMMUTABLE_INDEXED__@@';\n\nfunction isIndexed(maybeIndexed) {\n return Boolean(maybeIndexed && maybeIndexed[IS_INDEXED_SYMBOL]);\n}\n\nfunction isAssociative(maybeAssociative) {\n return isKeyed(maybeAssociative) || isIndexed(maybeAssociative);\n}\n\nvar Collection = function Collection(value) {\n // eslint-disable-next-line no-constructor-return\n return isCollection(value) ? value : Seq(value);\n};\n\nvar KeyedCollection = /*@__PURE__*/(function (Collection) {\n function KeyedCollection(value) {\n // eslint-disable-next-line no-constructor-return\n return isKeyed(value) ? value : KeyedSeq(value);\n }\n\n if ( Collection ) KeyedCollection.__proto__ = Collection;\n KeyedCollection.prototype = Object.create( Collection && Collection.prototype );\n KeyedCollection.prototype.constructor = KeyedCollection;\n\n return KeyedCollection;\n}(Collection));\n\nvar IndexedCollection = /*@__PURE__*/(function (Collection) {\n function IndexedCollection(value) {\n // eslint-disable-next-line no-constructor-return\n return isIndexed(value) ? value : IndexedSeq(value);\n }\n\n if ( Collection ) IndexedCollection.__proto__ = Collection;\n IndexedCollection.prototype = Object.create( Collection && Collection.prototype );\n IndexedCollection.prototype.constructor = IndexedCollection;\n\n return IndexedCollection;\n}(Collection));\n\nvar SetCollection = /*@__PURE__*/(function (Collection) {\n function SetCollection(value) {\n // eslint-disable-next-line no-constructor-return\n return isCollection(value) && !isAssociative(value) ? value : SetSeq(value);\n }\n\n if ( Collection ) SetCollection.__proto__ = Collection;\n SetCollection.prototype = Object.create( Collection && Collection.prototype );\n SetCollection.prototype.constructor = SetCollection;\n\n return SetCollection;\n}(Collection));\n\nCollection.Keyed = KeyedCollection;\nCollection.Indexed = IndexedCollection;\nCollection.Set = SetCollection;\n\nvar IS_SEQ_SYMBOL = '@@__IMMUTABLE_SEQ__@@';\n\nfunction isSeq(maybeSeq) {\n return Boolean(maybeSeq && maybeSeq[IS_SEQ_SYMBOL]);\n}\n\nvar IS_RECORD_SYMBOL = '@@__IMMUTABLE_RECORD__@@';\n\nfunction isRecord(maybeRecord) {\n return Boolean(maybeRecord && maybeRecord[IS_RECORD_SYMBOL]);\n}\n\nfunction isImmutable(maybeImmutable) {\n return isCollection(maybeImmutable) || isRecord(maybeImmutable);\n}\n\nvar IS_ORDERED_SYMBOL = '@@__IMMUTABLE_ORDERED__@@';\n\nfunction isOrdered(maybeOrdered) {\n return Boolean(maybeOrdered && maybeOrdered[IS_ORDERED_SYMBOL]);\n}\n\nvar ITERATE_KEYS = 0;\nvar ITERATE_VALUES = 1;\nvar ITERATE_ENTRIES = 2;\n\nvar REAL_ITERATOR_SYMBOL = typeof Symbol === 'function' && Symbol.iterator;\nvar FAUX_ITERATOR_SYMBOL = '@@iterator';\n\nvar ITERATOR_SYMBOL = REAL_ITERATOR_SYMBOL || FAUX_ITERATOR_SYMBOL;\n\nvar Iterator = function Iterator(next) {\n this.next = next;\n};\n\nIterator.prototype.toString = function toString () {\n return '[Iterator]';\n};\n\nIterator.KEYS = ITERATE_KEYS;\nIterator.VALUES = ITERATE_VALUES;\nIterator.ENTRIES = ITERATE_ENTRIES;\n\nIterator.prototype.inspect = Iterator.prototype.toSource = function () {\n return this.toString();\n};\nIterator.prototype[ITERATOR_SYMBOL] = function () {\n return this;\n};\n\nfunction iteratorValue(type, k, v, iteratorResult) {\n var value = type === 0 ? k : type === 1 ? v : [k, v];\n iteratorResult\n ? (iteratorResult.value = value)\n : (iteratorResult = {\n value: value,\n done: false,\n });\n return iteratorResult;\n}\n\nfunction iteratorDone() {\n return { value: undefined, done: true };\n}\n\nfunction hasIterator(maybeIterable) {\n if (Array.isArray(maybeIterable)) {\n // IE11 trick as it does not support `Symbol.iterator`\n return true;\n }\n\n return !!getIteratorFn(maybeIterable);\n}\n\nfunction isIterator(maybeIterator) {\n return maybeIterator && typeof maybeIterator.next === 'function';\n}\n\nfunction getIterator(iterable) {\n var iteratorFn = getIteratorFn(iterable);\n return iteratorFn && iteratorFn.call(iterable);\n}\n\nfunction getIteratorFn(iterable) {\n var iteratorFn =\n iterable &&\n ((REAL_ITERATOR_SYMBOL && iterable[REAL_ITERATOR_SYMBOL]) ||\n iterable[FAUX_ITERATOR_SYMBOL]);\n if (typeof iteratorFn === 'function') {\n return iteratorFn;\n }\n}\n\nfunction isEntriesIterable(maybeIterable) {\n var iteratorFn = getIteratorFn(maybeIterable);\n return iteratorFn && iteratorFn === maybeIterable.entries;\n}\n\nfunction isKeysIterable(maybeIterable) {\n var iteratorFn = getIteratorFn(maybeIterable);\n return iteratorFn && iteratorFn === maybeIterable.keys;\n}\n\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\n\nfunction isArrayLike(value) {\n if (Array.isArray(value) || typeof value === 'string') {\n return true;\n }\n\n return (\n value &&\n typeof value === 'object' &&\n Number.isInteger(value.length) &&\n value.length >= 0 &&\n (value.length === 0\n ? // Only {length: 0} is considered Array-like.\n Object.keys(value).length === 1\n : // An object is only Array-like if it has a property where the last value\n // in the array-like may be found (which could be undefined).\n value.hasOwnProperty(value.length - 1))\n );\n}\n\nvar Seq = /*@__PURE__*/(function (Collection) {\n function Seq(value) {\n // eslint-disable-next-line no-constructor-return\n return value === undefined || value === null\n ? emptySequence()\n : isImmutable(value)\n ? value.toSeq()\n : seqFromValue(value);\n }\n\n if ( Collection ) Seq.__proto__ = Collection;\n Seq.prototype = Object.create( Collection && Collection.prototype );\n Seq.prototype.constructor = Seq;\n\n Seq.prototype.toSeq = function toSeq () {\n return this;\n };\n\n Seq.prototype.toString = function toString () {\n return this.__toString('Seq {', '}');\n };\n\n Seq.prototype.cacheResult = function cacheResult () {\n if (!this._cache && this.__iterateUncached) {\n this._cache = this.entrySeq().toArray();\n this.size = this._cache.length;\n }\n return this;\n };\n\n // abstract __iterateUncached(fn, reverse)\n\n Seq.prototype.__iterate = function __iterate (fn, reverse) {\n var cache = this._cache;\n if (cache) {\n var size = cache.length;\n var i = 0;\n while (i !== size) {\n var entry = cache[reverse ? size - ++i : i++];\n if (fn(entry[1], entry[0], this) === false) {\n break;\n }\n }\n return i;\n }\n return this.__iterateUncached(fn, reverse);\n };\n\n // abstract __iteratorUncached(type, reverse)\n\n Seq.prototype.__iterator = function __iterator (type, reverse) {\n var cache = this._cache;\n if (cache) {\n var size = cache.length;\n var i = 0;\n return new Iterator(function () {\n if (i === size) {\n return iteratorDone();\n }\n var entry = cache[reverse ? size - ++i : i++];\n return iteratorValue(type, entry[0], entry[1]);\n });\n }\n return this.__iteratorUncached(type, reverse);\n };\n\n return Seq;\n}(Collection));\n\nvar KeyedSeq = /*@__PURE__*/(function (Seq) {\n function KeyedSeq(value) {\n // eslint-disable-next-line no-constructor-return\n return value === undefined || value === null\n ? emptySequence().toKeyedSeq()\n : isCollection(value)\n ? isKeyed(value)\n ? value.toSeq()\n : value.fromEntrySeq()\n : isRecord(value)\n ? value.toSeq()\n : keyedSeqFromValue(value);\n }\n\n if ( Seq ) KeyedSeq.__proto__ = Seq;\n KeyedSeq.prototype = Object.create( Seq && Seq.prototype );\n KeyedSeq.prototype.constructor = KeyedSeq;\n\n KeyedSeq.prototype.toKeyedSeq = function toKeyedSeq () {\n return this;\n };\n\n return KeyedSeq;\n}(Seq));\n\nvar IndexedSeq = /*@__PURE__*/(function (Seq) {\n function IndexedSeq(value) {\n // eslint-disable-next-line no-constructor-return\n return value === undefined || value === null\n ? emptySequence()\n : isCollection(value)\n ? isKeyed(value)\n ? value.entrySeq()\n : value.toIndexedSeq()\n : isRecord(value)\n ? value.toSeq().entrySeq()\n : indexedSeqFromValue(value);\n }\n\n if ( Seq ) IndexedSeq.__proto__ = Seq;\n IndexedSeq.prototype = Object.create( Seq && Seq.prototype );\n IndexedSeq.prototype.constructor = IndexedSeq;\n\n IndexedSeq.of = function of (/*...values*/) {\n return IndexedSeq(arguments);\n };\n\n IndexedSeq.prototype.toIndexedSeq = function toIndexedSeq () {\n return this;\n };\n\n IndexedSeq.prototype.toString = function toString () {\n return this.__toString('Seq [', ']');\n };\n\n return IndexedSeq;\n}(Seq));\n\nvar SetSeq = /*@__PURE__*/(function (Seq) {\n function SetSeq(value) {\n // eslint-disable-next-line no-constructor-return\n return (\n isCollection(value) && !isAssociative(value) ? value : IndexedSeq(value)\n ).toSetSeq();\n }\n\n if ( Seq ) SetSeq.__proto__ = Seq;\n SetSeq.prototype = Object.create( Seq && Seq.prototype );\n SetSeq.prototype.constructor = SetSeq;\n\n SetSeq.of = function of (/*...values*/) {\n return SetSeq(arguments);\n };\n\n SetSeq.prototype.toSetSeq = function toSetSeq () {\n return this;\n };\n\n return SetSeq;\n}(Seq));\n\nSeq.isSeq = isSeq;\nSeq.Keyed = KeyedSeq;\nSeq.Set = SetSeq;\nSeq.Indexed = IndexedSeq;\n\nSeq.prototype[IS_SEQ_SYMBOL] = true;\n\n// #pragma Root Sequences\n\nvar ArraySeq = /*@__PURE__*/(function (IndexedSeq) {\n function ArraySeq(array) {\n this._array = array;\n this.size = array.length;\n }\n\n if ( IndexedSeq ) ArraySeq.__proto__ = IndexedSeq;\n ArraySeq.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );\n ArraySeq.prototype.constructor = ArraySeq;\n\n ArraySeq.prototype.get = function get (index, notSetValue) {\n return this.has(index) ? this._array[wrapIndex(this, index)] : notSetValue;\n };\n\n ArraySeq.prototype.__iterate = function __iterate (fn, reverse) {\n var array = this._array;\n var size = array.length;\n var i = 0;\n while (i !== size) {\n var ii = reverse ? size - ++i : i++;\n if (fn(array[ii], ii, this) === false) {\n break;\n }\n }\n return i;\n };\n\n ArraySeq.prototype.__iterator = function __iterator (type, reverse) {\n var array = this._array;\n var size = array.length;\n var i = 0;\n return new Iterator(function () {\n if (i === size) {\n return iteratorDone();\n }\n var ii = reverse ? size - ++i : i++;\n return iteratorValue(type, ii, array[ii]);\n });\n };\n\n return ArraySeq;\n}(IndexedSeq));\n\nvar ObjectSeq = /*@__PURE__*/(function (KeyedSeq) {\n function ObjectSeq(object) {\n var keys = Object.keys(object).concat(\n Object.getOwnPropertySymbols ? Object.getOwnPropertySymbols(object) : []\n );\n this._object = object;\n this._keys = keys;\n this.size = keys.length;\n }\n\n if ( KeyedSeq ) ObjectSeq.__proto__ = KeyedSeq;\n ObjectSeq.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );\n ObjectSeq.prototype.constructor = ObjectSeq;\n\n ObjectSeq.prototype.get = function get (key, notSetValue) {\n if (notSetValue !== undefined && !this.has(key)) {\n return notSetValue;\n }\n return this._object[key];\n };\n\n ObjectSeq.prototype.has = function has (key) {\n return hasOwnProperty.call(this._object, key);\n };\n\n ObjectSeq.prototype.__iterate = function __iterate (fn, reverse) {\n var object = this._object;\n var keys = this._keys;\n var size = keys.length;\n var i = 0;\n while (i !== size) {\n var key = keys[reverse ? size - ++i : i++];\n if (fn(object[key], key, this) === false) {\n break;\n }\n }\n return i;\n };\n\n ObjectSeq.prototype.__iterator = function __iterator (type, reverse) {\n var object = this._object;\n var keys = this._keys;\n var size = keys.length;\n var i = 0;\n return new Iterator(function () {\n if (i === size) {\n return iteratorDone();\n }\n var key = keys[reverse ? size - ++i : i++];\n return iteratorValue(type, key, object[key]);\n });\n };\n\n return ObjectSeq;\n}(KeyedSeq));\nObjectSeq.prototype[IS_ORDERED_SYMBOL] = true;\n\nvar CollectionSeq = /*@__PURE__*/(function (IndexedSeq) {\n function CollectionSeq(collection) {\n this._collection = collection;\n this.size = collection.length || collection.size;\n }\n\n if ( IndexedSeq ) CollectionSeq.__proto__ = IndexedSeq;\n CollectionSeq.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );\n CollectionSeq.prototype.constructor = CollectionSeq;\n\n CollectionSeq.prototype.__iterateUncached = function __iterateUncached (fn, reverse) {\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var collection = this._collection;\n var iterator = getIterator(collection);\n var iterations = 0;\n if (isIterator(iterator)) {\n var step;\n while (!(step = iterator.next()).done) {\n if (fn(step.value, iterations++, this) === false) {\n break;\n }\n }\n }\n return iterations;\n };\n\n CollectionSeq.prototype.__iteratorUncached = function __iteratorUncached (type, reverse) {\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var collection = this._collection;\n var iterator = getIterator(collection);\n if (!isIterator(iterator)) {\n return new Iterator(iteratorDone);\n }\n var iterations = 0;\n return new Iterator(function () {\n var step = iterator.next();\n return step.done ? step : iteratorValue(type, iterations++, step.value);\n });\n };\n\n return CollectionSeq;\n}(IndexedSeq));\n\n// # pragma Helper functions\n\nvar EMPTY_SEQ;\n\nfunction emptySequence() {\n return EMPTY_SEQ || (EMPTY_SEQ = new ArraySeq([]));\n}\n\nfunction keyedSeqFromValue(value) {\n var seq = maybeIndexedSeqFromValue(value);\n if (seq) {\n return seq.fromEntrySeq();\n }\n if (typeof value === 'object') {\n return new ObjectSeq(value);\n }\n throw new TypeError(\n 'Expected Array or collection object of [k, v] entries, or keyed object: ' +\n value\n );\n}\n\nfunction indexedSeqFromValue(value) {\n var seq = maybeIndexedSeqFromValue(value);\n if (seq) {\n return seq;\n }\n throw new TypeError(\n 'Expected Array or collection object of values: ' + value\n );\n}\n\nfunction seqFromValue(value) {\n var seq = maybeIndexedSeqFromValue(value);\n if (seq) {\n return isEntriesIterable(value)\n ? seq.fromEntrySeq()\n : isKeysIterable(value)\n ? seq.toSetSeq()\n : seq;\n }\n if (typeof value === 'object') {\n return new ObjectSeq(value);\n }\n throw new TypeError(\n 'Expected Array or collection object of values, or keyed object: ' + value\n );\n}\n\nfunction maybeIndexedSeqFromValue(value) {\n return isArrayLike(value)\n ? new ArraySeq(value)\n : hasIterator(value)\n ? new CollectionSeq(value)\n : undefined;\n}\n\nvar IS_MAP_SYMBOL = '@@__IMMUTABLE_MAP__@@';\n\nfunction isMap(maybeMap) {\n return Boolean(maybeMap && maybeMap[IS_MAP_SYMBOL]);\n}\n\nfunction isOrderedMap(maybeOrderedMap) {\n return isMap(maybeOrderedMap) && isOrdered(maybeOrderedMap);\n}\n\nfunction isValueObject(maybeValue) {\n return Boolean(\n maybeValue &&\n typeof maybeValue.equals === 'function' &&\n typeof maybeValue.hashCode === 'function'\n );\n}\n\n/**\n * An extension of the \"same-value\" algorithm as [described for use by ES6 Map\n * and Set](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map#Key_equality)\n *\n * NaN is considered the same as NaN, however -0 and 0 are considered the same\n * value, which is different from the algorithm described by\n * [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is).\n *\n * This is extended further to allow Objects to describe the values they\n * represent, by way of `valueOf` or `equals` (and `hashCode`).\n *\n * Note: because of this extension, the key equality of Immutable.Map and the\n * value equality of Immutable.Set will differ from ES6 Map and Set.\n *\n * ### Defining custom values\n *\n * The easiest way to describe the value an object represents is by implementing\n * `valueOf`. For example, `Date` represents a value by returning a unix\n * timestamp for `valueOf`:\n *\n * var date1 = new Date(1234567890000); // Fri Feb 13 2009 ...\n * var date2 = new Date(1234567890000);\n * date1.valueOf(); // 1234567890000\n * assert( date1 !== date2 );\n * assert( Immutable.is( date1, date2 ) );\n *\n * Note: overriding `valueOf` may have other implications if you use this object\n * where JavaScript expects a primitive, such as implicit string coercion.\n *\n * For more complex types, especially collections, implementing `valueOf` may\n * not be performant. An alternative is to implement `equals` and `hashCode`.\n *\n * `equals` takes another object, presumably of similar type, and returns true\n * if it is equal. Equality is symmetrical, so the same result should be\n * returned if this and the argument are flipped.\n *\n * assert( a.equals(b) === b.equals(a) );\n *\n * `hashCode` returns a 32bit integer number representing the object which will\n * be used to determine how to store the value object in a Map or Set. You must\n * provide both or neither methods, one must not exist without the other.\n *\n * Also, an important relationship between these methods must be upheld: if two\n * values are equal, they *must* return the same hashCode. If the values are not\n * equal, they might have the same hashCode; this is called a hash collision,\n * and while undesirable for performance reasons, it is acceptable.\n *\n * if (a.equals(b)) {\n * assert( a.hashCode() === b.hashCode() );\n * }\n *\n * All Immutable collections are Value Objects: they implement `equals()`\n * and `hashCode()`.\n */\nfunction is(valueA, valueB) {\n if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {\n return true;\n }\n if (!valueA || !valueB) {\n return false;\n }\n if (\n typeof valueA.valueOf === 'function' &&\n typeof valueB.valueOf === 'function'\n ) {\n valueA = valueA.valueOf();\n valueB = valueB.valueOf();\n if (valueA === valueB || (valueA !== valueA && valueB !== valueB)) {\n return true;\n }\n if (!valueA || !valueB) {\n return false;\n }\n }\n return !!(\n isValueObject(valueA) &&\n isValueObject(valueB) &&\n valueA.equals(valueB)\n );\n}\n\nvar imul =\n typeof Math.imul === 'function' && Math.imul(0xffffffff, 2) === -2\n ? Math.imul\n : function imul(a, b) {\n a |= 0; // int\n b |= 0; // int\n var c = a & 0xffff;\n var d = b & 0xffff;\n // Shift by 0 fixes the sign on the high part.\n return (c * d + ((((a >>> 16) * d + c * (b >>> 16)) << 16) >>> 0)) | 0; // int\n };\n\n// v8 has an optimization for storing 31-bit signed numbers.\n// Values which have either 00 or 11 as the high order bits qualify.\n// This function drops the highest order bit in a signed number, maintaining\n// the sign bit.\nfunction smi(i32) {\n return ((i32 >>> 1) & 0x40000000) | (i32 & 0xbfffffff);\n}\n\nvar defaultValueOf = Object.prototype.valueOf;\n\nfunction hash(o) {\n if (o == null) {\n return hashNullish(o);\n }\n\n if (typeof o.hashCode === 'function') {\n // Drop any high bits from accidentally long hash codes.\n return smi(o.hashCode(o));\n }\n\n var v = valueOf(o);\n\n if (v == null) {\n return hashNullish(v);\n }\n\n switch (typeof v) {\n case 'boolean':\n // The hash values for built-in constants are a 1 value for each 5-byte\n // shift region expect for the first, which encodes the value. This\n // reduces the odds of a hash collision for these common values.\n return v ? 0x42108421 : 0x42108420;\n case 'number':\n return hashNumber(v);\n case 'string':\n return v.length > STRING_HASH_CACHE_MIN_STRLEN\n ? cachedHashString(v)\n : hashString(v);\n case 'object':\n case 'function':\n return hashJSObj(v);\n case 'symbol':\n return hashSymbol(v);\n default:\n if (typeof v.toString === 'function') {\n return hashString(v.toString());\n }\n throw new Error('Value type ' + typeof v + ' cannot be hashed.');\n }\n}\n\nfunction hashNullish(nullish) {\n return nullish === null ? 0x42108422 : /* undefined */ 0x42108423;\n}\n\n// Compress arbitrarily large numbers into smi hashes.\nfunction hashNumber(n) {\n if (n !== n || n === Infinity) {\n return 0;\n }\n var hash = n | 0;\n if (hash !== n) {\n hash ^= n * 0xffffffff;\n }\n while (n > 0xffffffff) {\n n /= 0xffffffff;\n hash ^= n;\n }\n return smi(hash);\n}\n\nfunction cachedHashString(string) {\n var hashed = stringHashCache[string];\n if (hashed === undefined) {\n hashed = hashString(string);\n if (STRING_HASH_CACHE_SIZE === STRING_HASH_CACHE_MAX_SIZE) {\n STRING_HASH_CACHE_SIZE = 0;\n stringHashCache = {};\n }\n STRING_HASH_CACHE_SIZE++;\n stringHashCache[string] = hashed;\n }\n return hashed;\n}\n\n// http://jsperf.com/hashing-strings\nfunction hashString(string) {\n // This is the hash from JVM\n // The hash code for a string is computed as\n // s[0] * 31 ^ (n - 1) + s[1] * 31 ^ (n - 2) + ... + s[n - 1],\n // where s[i] is the ith character of the string and n is the length of\n // the string. We \"mod\" the result to make it between 0 (inclusive) and 2^31\n // (exclusive) by dropping high bits.\n var hashed = 0;\n for (var ii = 0; ii < string.length; ii++) {\n hashed = (31 * hashed + string.charCodeAt(ii)) | 0;\n }\n return smi(hashed);\n}\n\nfunction hashSymbol(sym) {\n var hashed = symbolMap[sym];\n if (hashed !== undefined) {\n return hashed;\n }\n\n hashed = nextHash();\n\n symbolMap[sym] = hashed;\n\n return hashed;\n}\n\nfunction hashJSObj(obj) {\n var hashed;\n if (usingWeakMap) {\n hashed = weakMap.get(obj);\n if (hashed !== undefined) {\n return hashed;\n }\n }\n\n hashed = obj[UID_HASH_KEY];\n if (hashed !== undefined) {\n return hashed;\n }\n\n if (!canDefineProperty) {\n hashed = obj.propertyIsEnumerable && obj.propertyIsEnumerable[UID_HASH_KEY];\n if (hashed !== undefined) {\n return hashed;\n }\n\n hashed = getIENodeHash(obj);\n if (hashed !== undefined) {\n return hashed;\n }\n }\n\n hashed = nextHash();\n\n if (usingWeakMap) {\n weakMap.set(obj, hashed);\n } else if (isExtensible !== undefined && isExtensible(obj) === false) {\n throw new Error('Non-extensible objects are not allowed as keys.');\n } else if (canDefineProperty) {\n Object.defineProperty(obj, UID_HASH_KEY, {\n enumerable: false,\n configurable: false,\n writable: false,\n value: hashed,\n });\n } else if (\n obj.propertyIsEnumerable !== undefined &&\n obj.propertyIsEnumerable === obj.constructor.prototype.propertyIsEnumerable\n ) {\n // Since we can't define a non-enumerable property on the object\n // we'll hijack one of the less-used non-enumerable properties to\n // save our hash on it. Since this is a function it will not show up in\n // `JSON.stringify` which is what we want.\n obj.propertyIsEnumerable = function () {\n return this.constructor.prototype.propertyIsEnumerable.apply(\n this,\n arguments\n );\n };\n obj.propertyIsEnumerable[UID_HASH_KEY] = hashed;\n } else if (obj.nodeType !== undefined) {\n // At this point we couldn't get the IE `uniqueID` to use as a hash\n // and we couldn't use a non-enumerable property to exploit the\n // dontEnum bug so we simply add the `UID_HASH_KEY` on the node\n // itself.\n obj[UID_HASH_KEY] = hashed;\n } else {\n throw new Error('Unable to set a non-enumerable property on object.');\n }\n\n return hashed;\n}\n\n// Get references to ES5 object methods.\nvar isExtensible = Object.isExtensible;\n\n// True if Object.defineProperty works as expected. IE8 fails this test.\nvar canDefineProperty = (function () {\n try {\n Object.defineProperty({}, '@', {});\n return true;\n } catch (e) {\n return false;\n }\n})();\n\n// IE has a `uniqueID` property on DOM nodes. We can construct the hash from it\n// and avoid memory leaks from the IE cloneNode bug.\nfunction getIENodeHash(node) {\n if (node && node.nodeType > 0) {\n switch (node.nodeType) {\n case 1: // Element\n return node.uniqueID;\n case 9: // Document\n return node.documentElement && node.documentElement.uniqueID;\n }\n }\n}\n\nfunction valueOf(obj) {\n return obj.valueOf !== defaultValueOf && typeof obj.valueOf === 'function'\n ? obj.valueOf(obj)\n : obj;\n}\n\nfunction nextHash() {\n var nextHash = ++_objHashUID;\n if (_objHashUID & 0x40000000) {\n _objHashUID = 0;\n }\n return nextHash;\n}\n\n// If possible, use a WeakMap.\nvar usingWeakMap = typeof WeakMap === 'function';\nvar weakMap;\nif (usingWeakMap) {\n weakMap = new WeakMap();\n}\n\nvar symbolMap = Object.create(null);\n\nvar _objHashUID = 0;\n\nvar UID_HASH_KEY = '__immutablehash__';\nif (typeof Symbol === 'function') {\n UID_HASH_KEY = Symbol(UID_HASH_KEY);\n}\n\nvar STRING_HASH_CACHE_MIN_STRLEN = 16;\nvar STRING_HASH_CACHE_MAX_SIZE = 255;\nvar STRING_HASH_CACHE_SIZE = 0;\nvar stringHashCache = {};\n\nvar ToKeyedSequence = /*@__PURE__*/(function (KeyedSeq) {\n function ToKeyedSequence(indexed, useKeys) {\n this._iter = indexed;\n this._useKeys = useKeys;\n this.size = indexed.size;\n }\n\n if ( KeyedSeq ) ToKeyedSequence.__proto__ = KeyedSeq;\n ToKeyedSequence.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );\n ToKeyedSequence.prototype.constructor = ToKeyedSequence;\n\n ToKeyedSequence.prototype.get = function get (key, notSetValue) {\n return this._iter.get(key, notSetValue);\n };\n\n ToKeyedSequence.prototype.has = function has (key) {\n return this._iter.has(key);\n };\n\n ToKeyedSequence.prototype.valueSeq = function valueSeq () {\n return this._iter.valueSeq();\n };\n\n ToKeyedSequence.prototype.reverse = function reverse () {\n var this$1$1 = this;\n\n var reversedSequence = reverseFactory(this, true);\n if (!this._useKeys) {\n reversedSequence.valueSeq = function () { return this$1$1._iter.toSeq().reverse(); };\n }\n return reversedSequence;\n };\n\n ToKeyedSequence.prototype.map = function map (mapper, context) {\n var this$1$1 = this;\n\n var mappedSequence = mapFactory(this, mapper, context);\n if (!this._useKeys) {\n mappedSequence.valueSeq = function () { return this$1$1._iter.toSeq().map(mapper, context); };\n }\n return mappedSequence;\n };\n\n ToKeyedSequence.prototype.__iterate = function __iterate (fn, reverse) {\n var this$1$1 = this;\n\n return this._iter.__iterate(function (v, k) { return fn(v, k, this$1$1); }, reverse);\n };\n\n ToKeyedSequence.prototype.__iterator = function __iterator (type, reverse) {\n return this._iter.__iterator(type, reverse);\n };\n\n return ToKeyedSequence;\n}(KeyedSeq));\nToKeyedSequence.prototype[IS_ORDERED_SYMBOL] = true;\n\nvar ToIndexedSequence = /*@__PURE__*/(function (IndexedSeq) {\n function ToIndexedSequence(iter) {\n this._iter = iter;\n this.size = iter.size;\n }\n\n if ( IndexedSeq ) ToIndexedSequence.__proto__ = IndexedSeq;\n ToIndexedSequence.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );\n ToIndexedSequence.prototype.constructor = ToIndexedSequence;\n\n ToIndexedSequence.prototype.includes = function includes (value) {\n return this._iter.includes(value);\n };\n\n ToIndexedSequence.prototype.__iterate = function __iterate (fn, reverse) {\n var this$1$1 = this;\n\n var i = 0;\n reverse && ensureSize(this);\n return this._iter.__iterate(\n function (v) { return fn(v, reverse ? this$1$1.size - ++i : i++, this$1$1); },\n reverse\n );\n };\n\n ToIndexedSequence.prototype.__iterator = function __iterator (type, reverse) {\n var this$1$1 = this;\n\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n var i = 0;\n reverse && ensureSize(this);\n return new Iterator(function () {\n var step = iterator.next();\n return step.done\n ? step\n : iteratorValue(\n type,\n reverse ? this$1$1.size - ++i : i++,\n step.value,\n step\n );\n });\n };\n\n return ToIndexedSequence;\n}(IndexedSeq));\n\nvar ToSetSequence = /*@__PURE__*/(function (SetSeq) {\n function ToSetSequence(iter) {\n this._iter = iter;\n this.size = iter.size;\n }\n\n if ( SetSeq ) ToSetSequence.__proto__ = SetSeq;\n ToSetSequence.prototype = Object.create( SetSeq && SetSeq.prototype );\n ToSetSequence.prototype.constructor = ToSetSequence;\n\n ToSetSequence.prototype.has = function has (key) {\n return this._iter.includes(key);\n };\n\n ToSetSequence.prototype.__iterate = function __iterate (fn, reverse) {\n var this$1$1 = this;\n\n return this._iter.__iterate(function (v) { return fn(v, v, this$1$1); }, reverse);\n };\n\n ToSetSequence.prototype.__iterator = function __iterator (type, reverse) {\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n return new Iterator(function () {\n var step = iterator.next();\n return step.done\n ? step\n : iteratorValue(type, step.value, step.value, step);\n });\n };\n\n return ToSetSequence;\n}(SetSeq));\n\nvar FromEntriesSequence = /*@__PURE__*/(function (KeyedSeq) {\n function FromEntriesSequence(entries) {\n this._iter = entries;\n this.size = entries.size;\n }\n\n if ( KeyedSeq ) FromEntriesSequence.__proto__ = KeyedSeq;\n FromEntriesSequence.prototype = Object.create( KeyedSeq && KeyedSeq.prototype );\n FromEntriesSequence.prototype.constructor = FromEntriesSequence;\n\n FromEntriesSequence.prototype.entrySeq = function entrySeq () {\n return this._iter.toSeq();\n };\n\n FromEntriesSequence.prototype.__iterate = function __iterate (fn, reverse) {\n var this$1$1 = this;\n\n return this._iter.__iterate(function (entry) {\n // Check if entry exists first so array access doesn't throw for holes\n // in the parent iteration.\n if (entry) {\n validateEntry(entry);\n var indexedCollection = isCollection(entry);\n return fn(\n indexedCollection ? entry.get(1) : entry[1],\n indexedCollection ? entry.get(0) : entry[0],\n this$1$1\n );\n }\n }, reverse);\n };\n\n FromEntriesSequence.prototype.__iterator = function __iterator (type, reverse) {\n var iterator = this._iter.__iterator(ITERATE_VALUES, reverse);\n return new Iterator(function () {\n while (true) {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n // Check if entry exists first so array access doesn't throw for holes\n // in the parent iteration.\n if (entry) {\n validateEntry(entry);\n var indexedCollection = isCollection(entry);\n return iteratorValue(\n type,\n indexedCollection ? entry.get(0) : entry[0],\n indexedCollection ? entry.get(1) : entry[1],\n step\n );\n }\n }\n });\n };\n\n return FromEntriesSequence;\n}(KeyedSeq));\n\nToIndexedSequence.prototype.cacheResult =\n ToKeyedSequence.prototype.cacheResult =\n ToSetSequence.prototype.cacheResult =\n FromEntriesSequence.prototype.cacheResult =\n cacheResultThrough;\n\nfunction flipFactory(collection) {\n var flipSequence = makeSequence(collection);\n flipSequence._iter = collection;\n flipSequence.size = collection.size;\n flipSequence.flip = function () { return collection; };\n flipSequence.reverse = function () {\n var reversedSequence = collection.reverse.apply(this); // super.reverse()\n reversedSequence.flip = function () { return collection.reverse(); };\n return reversedSequence;\n };\n flipSequence.has = function (key) { return collection.includes(key); };\n flipSequence.includes = function (key) { return collection.has(key); };\n flipSequence.cacheResult = cacheResultThrough;\n flipSequence.__iterateUncached = function (fn, reverse) {\n var this$1$1 = this;\n\n return collection.__iterate(function (v, k) { return fn(k, v, this$1$1) !== false; }, reverse);\n };\n flipSequence.__iteratorUncached = function (type, reverse) {\n if (type === ITERATE_ENTRIES) {\n var iterator = collection.__iterator(type, reverse);\n return new Iterator(function () {\n var step = iterator.next();\n if (!step.done) {\n var k = step.value[0];\n step.value[0] = step.value[1];\n step.value[1] = k;\n }\n return step;\n });\n }\n return collection.__iterator(\n type === ITERATE_VALUES ? ITERATE_KEYS : ITERATE_VALUES,\n reverse\n );\n };\n return flipSequence;\n}\n\nfunction mapFactory(collection, mapper, context) {\n var mappedSequence = makeSequence(collection);\n mappedSequence.size = collection.size;\n mappedSequence.has = function (key) { return collection.has(key); };\n mappedSequence.get = function (key, notSetValue) {\n var v = collection.get(key, NOT_SET);\n return v === NOT_SET\n ? notSetValue\n : mapper.call(context, v, key, collection);\n };\n mappedSequence.__iterateUncached = function (fn, reverse) {\n var this$1$1 = this;\n\n return collection.__iterate(\n function (v, k, c) { return fn(mapper.call(context, v, k, c), k, this$1$1) !== false; },\n reverse\n );\n };\n mappedSequence.__iteratorUncached = function (type, reverse) {\n var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);\n return new Iterator(function () {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n var key = entry[0];\n return iteratorValue(\n type,\n key,\n mapper.call(context, entry[1], key, collection),\n step\n );\n });\n };\n return mappedSequence;\n}\n\nfunction reverseFactory(collection, useKeys) {\n var this$1$1 = this;\n\n var reversedSequence = makeSequence(collection);\n reversedSequence._iter = collection;\n reversedSequence.size = collection.size;\n reversedSequence.reverse = function () { return collection; };\n if (collection.flip) {\n reversedSequence.flip = function () {\n var flipSequence = flipFactory(collection);\n flipSequence.reverse = function () { return collection.flip(); };\n return flipSequence;\n };\n }\n reversedSequence.get = function (key, notSetValue) { return collection.get(useKeys ? key : -1 - key, notSetValue); };\n reversedSequence.has = function (key) { return collection.has(useKeys ? key : -1 - key); };\n reversedSequence.includes = function (value) { return collection.includes(value); };\n reversedSequence.cacheResult = cacheResultThrough;\n reversedSequence.__iterate = function (fn, reverse) {\n var this$1$1 = this;\n\n var i = 0;\n reverse && ensureSize(collection);\n return collection.__iterate(\n function (v, k) { return fn(v, useKeys ? k : reverse ? this$1$1.size - ++i : i++, this$1$1); },\n !reverse\n );\n };\n reversedSequence.__iterator = function (type, reverse) {\n var i = 0;\n reverse && ensureSize(collection);\n var iterator = collection.__iterator(ITERATE_ENTRIES, !reverse);\n return new Iterator(function () {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n return iteratorValue(\n type,\n useKeys ? entry[0] : reverse ? this$1$1.size - ++i : i++,\n entry[1],\n step\n );\n });\n };\n return reversedSequence;\n}\n\nfunction filterFactory(collection, predicate, context, useKeys) {\n var filterSequence = makeSequence(collection);\n if (useKeys) {\n filterSequence.has = function (key) {\n var v = collection.get(key, NOT_SET);\n return v !== NOT_SET && !!predicate.call(context, v, key, collection);\n };\n filterSequence.get = function (key, notSetValue) {\n var v = collection.get(key, NOT_SET);\n return v !== NOT_SET && predicate.call(context, v, key, collection)\n ? v\n : notSetValue;\n };\n }\n filterSequence.__iterateUncached = function (fn, reverse) {\n var this$1$1 = this;\n\n var iterations = 0;\n collection.__iterate(function (v, k, c) {\n if (predicate.call(context, v, k, c)) {\n iterations++;\n return fn(v, useKeys ? k : iterations - 1, this$1$1);\n }\n }, reverse);\n return iterations;\n };\n filterSequence.__iteratorUncached = function (type, reverse) {\n var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);\n var iterations = 0;\n return new Iterator(function () {\n while (true) {\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n var key = entry[0];\n var value = entry[1];\n if (predicate.call(context, value, key, collection)) {\n return iteratorValue(type, useKeys ? key : iterations++, value, step);\n }\n }\n });\n };\n return filterSequence;\n}\n\nfunction countByFactory(collection, grouper, context) {\n var groups = Map().asMutable();\n collection.__iterate(function (v, k) {\n groups.update(grouper.call(context, v, k, collection), 0, function (a) { return a + 1; });\n });\n return groups.asImmutable();\n}\n\nfunction groupByFactory(collection, grouper, context) {\n var isKeyedIter = isKeyed(collection);\n var groups = (isOrdered(collection) ? OrderedMap() : Map()).asMutable();\n collection.__iterate(function (v, k) {\n groups.update(\n grouper.call(context, v, k, collection),\n function (a) { return ((a = a || []), a.push(isKeyedIter ? [k, v] : v), a); }\n );\n });\n var coerce = collectionClass(collection);\n return groups.map(function (arr) { return reify(collection, coerce(arr)); }).asImmutable();\n}\n\nfunction partitionFactory(collection, predicate, context) {\n var isKeyedIter = isKeyed(collection);\n var groups = [[], []];\n collection.__iterate(function (v, k) {\n groups[predicate.call(context, v, k, collection) ? 1 : 0].push(\n isKeyedIter ? [k, v] : v\n );\n });\n var coerce = collectionClass(collection);\n return groups.map(function (arr) { return reify(collection, coerce(arr)); });\n}\n\nfunction sliceFactory(collection, begin, end, useKeys) {\n var originalSize = collection.size;\n\n if (wholeSlice(begin, end, originalSize)) {\n return collection;\n }\n\n var resolvedBegin = resolveBegin(begin, originalSize);\n var resolvedEnd = resolveEnd(end, originalSize);\n\n // begin or end will be NaN if they were provided as negative numbers and\n // this collection's size is unknown. In that case, cache first so there is\n // a known size and these do not resolve to NaN.\n if (resolvedBegin !== resolvedBegin || resolvedEnd !== resolvedEnd) {\n return sliceFactory(collection.toSeq().cacheResult(), begin, end, useKeys);\n }\n\n // Note: resolvedEnd is undefined when the original sequence's length is\n // unknown and this slice did not supply an end and should contain all\n // elements after resolvedBegin.\n // In that case, resolvedSize will be NaN and sliceSize will remain undefined.\n var resolvedSize = resolvedEnd - resolvedBegin;\n var sliceSize;\n if (resolvedSize === resolvedSize) {\n sliceSize = resolvedSize < 0 ? 0 : resolvedSize;\n }\n\n var sliceSeq = makeSequence(collection);\n\n // If collection.size is undefined, the size of the realized sliceSeq is\n // unknown at this point unless the number of items to slice is 0\n sliceSeq.size =\n sliceSize === 0 ? sliceSize : (collection.size && sliceSize) || undefined;\n\n if (!useKeys && isSeq(collection) && sliceSize >= 0) {\n sliceSeq.get = function (index, notSetValue) {\n index = wrapIndex(this, index);\n return index >= 0 && index < sliceSize\n ? collection.get(index + resolvedBegin, notSetValue)\n : notSetValue;\n };\n }\n\n sliceSeq.__iterateUncached = function (fn, reverse) {\n var this$1$1 = this;\n\n if (sliceSize === 0) {\n return 0;\n }\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var skipped = 0;\n var isSkipping = true;\n var iterations = 0;\n collection.__iterate(function (v, k) {\n if (!(isSkipping && (isSkipping = skipped++ < resolvedBegin))) {\n iterations++;\n return (\n fn(v, useKeys ? k : iterations - 1, this$1$1) !== false &&\n iterations !== sliceSize\n );\n }\n });\n return iterations;\n };\n\n sliceSeq.__iteratorUncached = function (type, reverse) {\n if (sliceSize !== 0 && reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n // Don't bother instantiating parent iterator if taking 0.\n if (sliceSize === 0) {\n return new Iterator(iteratorDone);\n }\n var iterator = collection.__iterator(type, reverse);\n var skipped = 0;\n var iterations = 0;\n return new Iterator(function () {\n while (skipped++ < resolvedBegin) {\n iterator.next();\n }\n if (++iterations > sliceSize) {\n return iteratorDone();\n }\n var step = iterator.next();\n if (useKeys || type === ITERATE_VALUES || step.done) {\n return step;\n }\n if (type === ITERATE_KEYS) {\n return iteratorValue(type, iterations - 1, undefined, step);\n }\n return iteratorValue(type, iterations - 1, step.value[1], step);\n });\n };\n\n return sliceSeq;\n}\n\nfunction takeWhileFactory(collection, predicate, context) {\n var takeSequence = makeSequence(collection);\n takeSequence.__iterateUncached = function (fn, reverse) {\n var this$1$1 = this;\n\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var iterations = 0;\n collection.__iterate(\n function (v, k, c) { return predicate.call(context, v, k, c) && ++iterations && fn(v, k, this$1$1); }\n );\n return iterations;\n };\n takeSequence.__iteratorUncached = function (type, reverse) {\n var this$1$1 = this;\n\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);\n var iterating = true;\n return new Iterator(function () {\n if (!iterating) {\n return iteratorDone();\n }\n var step = iterator.next();\n if (step.done) {\n return step;\n }\n var entry = step.value;\n var k = entry[0];\n var v = entry[1];\n if (!predicate.call(context, v, k, this$1$1)) {\n iterating = false;\n return iteratorDone();\n }\n return type === ITERATE_ENTRIES ? step : iteratorValue(type, k, v, step);\n });\n };\n return takeSequence;\n}\n\nfunction skipWhileFactory(collection, predicate, context, useKeys) {\n var skipSequence = makeSequence(collection);\n skipSequence.__iterateUncached = function (fn, reverse) {\n var this$1$1 = this;\n\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var isSkipping = true;\n var iterations = 0;\n collection.__iterate(function (v, k, c) {\n if (!(isSkipping && (isSkipping = predicate.call(context, v, k, c)))) {\n iterations++;\n return fn(v, useKeys ? k : iterations - 1, this$1$1);\n }\n });\n return iterations;\n };\n skipSequence.__iteratorUncached = function (type, reverse) {\n var this$1$1 = this;\n\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterator = collection.__iterator(ITERATE_ENTRIES, reverse);\n var skipping = true;\n var iterations = 0;\n return new Iterator(function () {\n var step;\n var k;\n var v;\n do {\n step = iterator.next();\n if (step.done) {\n if (useKeys || type === ITERATE_VALUES) {\n return step;\n }\n if (type === ITERATE_KEYS) {\n return iteratorValue(type, iterations++, undefined, step);\n }\n return iteratorValue(type, iterations++, step.value[1], step);\n }\n var entry = step.value;\n k = entry[0];\n v = entry[1];\n skipping && (skipping = predicate.call(context, v, k, this$1$1));\n } while (skipping);\n return type === ITERATE_ENTRIES ? step : iteratorValue(type, k, v, step);\n });\n };\n return skipSequence;\n}\n\nfunction concatFactory(collection, values) {\n var isKeyedCollection = isKeyed(collection);\n var iters = [collection]\n .concat(values)\n .map(function (v) {\n if (!isCollection(v)) {\n v = isKeyedCollection\n ? keyedSeqFromValue(v)\n : indexedSeqFromValue(Array.isArray(v) ? v : [v]);\n } else if (isKeyedCollection) {\n v = KeyedCollection(v);\n }\n return v;\n })\n .filter(function (v) { return v.size !== 0; });\n\n if (iters.length === 0) {\n return collection;\n }\n\n if (iters.length === 1) {\n var singleton = iters[0];\n if (\n singleton === collection ||\n (isKeyedCollection && isKeyed(singleton)) ||\n (isIndexed(collection) && isIndexed(singleton))\n ) {\n return singleton;\n }\n }\n\n var concatSeq = new ArraySeq(iters);\n if (isKeyedCollection) {\n concatSeq = concatSeq.toKeyedSeq();\n } else if (!isIndexed(collection)) {\n concatSeq = concatSeq.toSetSeq();\n }\n concatSeq = concatSeq.flatten(true);\n concatSeq.size = iters.reduce(function (sum, seq) {\n if (sum !== undefined) {\n var size = seq.size;\n if (size !== undefined) {\n return sum + size;\n }\n }\n }, 0);\n return concatSeq;\n}\n\nfunction flattenFactory(collection, depth, useKeys) {\n var flatSequence = makeSequence(collection);\n flatSequence.__iterateUncached = function (fn, reverse) {\n if (reverse) {\n return this.cacheResult().__iterate(fn, reverse);\n }\n var iterations = 0;\n var stopped = false;\n function flatDeep(iter, currentDepth) {\n iter.__iterate(function (v, k) {\n if ((!depth || currentDepth < depth) && isCollection(v)) {\n flatDeep(v, currentDepth + 1);\n } else {\n iterations++;\n if (fn(v, useKeys ? k : iterations - 1, flatSequence) === false) {\n stopped = true;\n }\n }\n return !stopped;\n }, reverse);\n }\n flatDeep(collection, 0);\n return iterations;\n };\n flatSequence.__iteratorUncached = function (type, reverse) {\n if (reverse) {\n return this.cacheResult().__iterator(type, reverse);\n }\n var iterator = collection.__iterator(type, reverse);\n var stack = [];\n var iterations = 0;\n return new Iterator(function () {\n while (iterator) {\n var step = iterator.next();\n if (step.done !== false) {\n iterator = stack.pop();\n continue;\n }\n var v = step.value;\n if (type === ITERATE_ENTRIES) {\n v = v[1];\n }\n if ((!depth || stack.length < depth) && isCollection(v)) {\n stack.push(iterator);\n iterator = v.__iterator(type, reverse);\n } else {\n return useKeys ? step : iteratorValue(type, iterations++, v, step);\n }\n }\n return iteratorDone();\n });\n };\n return flatSequence;\n}\n\nfunction flatMapFactory(collection, mapper, context) {\n var coerce = collectionClass(collection);\n return collection\n .toSeq()\n .map(function (v, k) { return coerce(mapper.call(context, v, k, collection)); })\n .flatten(true);\n}\n\nfunction interposeFactory(collection, separator) {\n var interposedSequence = makeSequence(collection);\n interposedSequence.size = collection.size && collection.size * 2 - 1;\n interposedSequence.__iterateUncached = function (fn, reverse) {\n var this$1$1 = this;\n\n var iterations = 0;\n collection.__iterate(\n function (v) { return (!iterations || fn(separator, iterations++, this$1$1) !== false) &&\n fn(v, iterations++, this$1$1) !== false; },\n reverse\n );\n return iterations;\n };\n interposedSequence.__iteratorUncached = function (type, reverse) {\n var iterator = collection.__iterator(ITERATE_VALUES, reverse);\n var iterations = 0;\n var step;\n return new Iterator(function () {\n if (!step || iterations % 2) {\n step = iterator.next();\n if (step.done) {\n return step;\n }\n }\n return iterations % 2\n ? iteratorValue(type, iterations++, separator)\n : iteratorValue(type, iterations++, step.value, step);\n });\n };\n return interposedSequence;\n}\n\nfunction sortFactory(collection, comparator, mapper) {\n if (!comparator) {\n comparator = defaultComparator;\n }\n var isKeyedCollection = isKeyed(collection);\n var index = 0;\n var entries = collection\n .toSeq()\n .map(function (v, k) { return [k, v, index++, mapper ? mapper(v, k, collection) : v]; })\n .valueSeq()\n .toArray();\n entries\n .sort(function (a, b) { return comparator(a[3], b[3]) || a[2] - b[2]; })\n .forEach(\n isKeyedCollection\n ? function (v, i) {\n entries[i].length = 2;\n }\n : function (v, i) {\n entries[i] = v[1];\n }\n );\n return isKeyedCollection\n ? KeyedSeq(entries)\n : isIndexed(collection)\n ? IndexedSeq(entries)\n : SetSeq(entries);\n}\n\nfunction maxFactory(collection, comparator, mapper) {\n if (!comparator) {\n comparator = defaultComparator;\n }\n if (mapper) {\n var entry = collection\n .toSeq()\n .map(function (v, k) { return [v, mapper(v, k, collection)]; })\n .reduce(function (a, b) { return (maxCompare(comparator, a[1], b[1]) ? b : a); });\n return entry && entry[0];\n }\n return collection.reduce(function (a, b) { return (maxCompare(comparator, a, b) ? b : a); });\n}\n\nfunction maxCompare(comparator, a, b) {\n var comp = comparator(b, a);\n // b is considered the new max if the comparator declares them equal, but\n // they are not equal and b is in fact a nullish value.\n return (\n (comp === 0 && b !== a && (b === undefined || b === null || b !== b)) ||\n comp > 0\n );\n}\n\nfunction zipWithFactory(keyIter, zipper, iters, zipAll) {\n var zipSequence = makeSequence(keyIter);\n var sizes = new ArraySeq(iters).map(function (i) { return i.size; });\n zipSequence.size = zipAll ? sizes.max() : sizes.min();\n // Note: this a generic base implementation of __iterate in terms of\n // __iterator which may be more generically useful in the future.\n zipSequence.__iterate = function (fn, reverse) {\n /* generic:\n var iterator = this.__iterator(ITERATE_ENTRIES, reverse);\n var step;\n var iterations = 0;\n while (!(step = iterator.next()).done) {\n iterations++;\n if (fn(step.value[1], step.value[0], this) === false) {\n break;\n }\n }\n return iterations;\n */\n // indexed:\n var iterator = this.__iterator(ITERATE_VALUES, reverse);\n var step;\n var iterations = 0;\n while (!(step = iterator.next()).done) {\n if (fn(step.value, iterations++, this) === false) {\n break;\n }\n }\n return iterations;\n };\n zipSequence.__iteratorUncached = function (type, reverse) {\n var iterators = iters.map(\n function (i) { return ((i = Collection(i)), getIterator(reverse ? i.reverse() : i)); }\n );\n var iterations = 0;\n var isDone = false;\n return new Iterator(function () {\n var steps;\n if (!isDone) {\n steps = iterators.map(function (i) { return i.next(); });\n isDone = zipAll ? steps.every(function (s) { return s.done; }) : steps.some(function (s) { return s.done; });\n }\n if (isDone) {\n return iteratorDone();\n }\n return iteratorValue(\n type,\n iterations++,\n zipper.apply(\n null,\n steps.map(function (s) { return s.value; })\n )\n );\n });\n };\n return zipSequence;\n}\n\n// #pragma Helper Functions\n\nfunction reify(iter, seq) {\n return iter === seq ? iter : isSeq(iter) ? seq : iter.constructor(seq);\n}\n\nfunction validateEntry(entry) {\n if (entry !== Object(entry)) {\n throw new TypeError('Expected [K, V] tuple: ' + entry);\n }\n}\n\nfunction collectionClass(collection) {\n return isKeyed(collection)\n ? KeyedCollection\n : isIndexed(collection)\n ? IndexedCollection\n : SetCollection;\n}\n\nfunction makeSequence(collection) {\n return Object.create(\n (isKeyed(collection)\n ? KeyedSeq\n : isIndexed(collection)\n ? IndexedSeq\n : SetSeq\n ).prototype\n );\n}\n\nfunction cacheResultThrough() {\n if (this._iter.cacheResult) {\n this._iter.cacheResult();\n this.size = this._iter.size;\n return this;\n }\n return Seq.prototype.cacheResult.call(this);\n}\n\nfunction defaultComparator(a, b) {\n if (a === undefined && b === undefined) {\n return 0;\n }\n\n if (a === undefined) {\n return 1;\n }\n\n if (b === undefined) {\n return -1;\n }\n\n return a > b ? 1 : a < b ? -1 : 0;\n}\n\nfunction arrCopy(arr, offset) {\n offset = offset || 0;\n var len = Math.max(0, arr.length - offset);\n var newArr = new Array(len);\n for (var ii = 0; ii < len; ii++) {\n newArr[ii] = arr[ii + offset];\n }\n return newArr;\n}\n\nfunction invariant(condition, error) {\n if (!condition) { throw new Error(error); }\n}\n\nfunction assertNotInfinite(size) {\n invariant(\n size !== Infinity,\n 'Cannot perform this action with an infinite size.'\n );\n}\n\nfunction coerceKeyPath(keyPath) {\n if (isArrayLike(keyPath) && typeof keyPath !== 'string') {\n return keyPath;\n }\n if (isOrdered(keyPath)) {\n return keyPath.toArray();\n }\n throw new TypeError(\n 'Invalid keyPath: expected Ordered Collection or Array: ' + keyPath\n );\n}\n\nvar toString = Object.prototype.toString;\n\nfunction isPlainObject(value) {\n // The base prototype's toString deals with Argument objects and native namespaces like Math\n if (\n !value ||\n typeof value !== 'object' ||\n toString.call(value) !== '[object Object]'\n ) {\n return false;\n }\n\n var proto = Object.getPrototypeOf(value);\n if (proto === null) {\n return true;\n }\n\n // Iteratively going up the prototype chain is needed for cross-realm environments (differing contexts, iframes, etc)\n var parentProto = proto;\n var nextProto = Object.getPrototypeOf(proto);\n while (nextProto !== null) {\n parentProto = nextProto;\n nextProto = Object.getPrototypeOf(parentProto);\n }\n return parentProto === proto;\n}\n\n/**\n * Returns true if the value is a potentially-persistent data structure, either\n * provided by Immutable.js or a plain Array or Object.\n */\nfunction isDataStructure(value) {\n return (\n typeof value === 'object' &&\n (isImmutable(value) || Array.isArray(value) || isPlainObject(value))\n );\n}\n\nfunction quoteString(value) {\n try {\n return typeof value === 'string' ? JSON.stringify(value) : String(value);\n } catch (_ignoreError) {\n return JSON.stringify(value);\n }\n}\n\nfunction has(collection, key) {\n return isImmutable(collection)\n ? collection.has(key)\n : isDataStructure(collection) && hasOwnProperty.call(collection, key);\n}\n\nfunction get(collection, key, notSetValue) {\n return isImmutable(collection)\n ? collection.get(key, notSetValue)\n : !has(collection, key)\n ? notSetValue\n : typeof collection.get === 'function'\n ? collection.get(key)\n : collection[key];\n}\n\nfunction shallowCopy(from) {\n if (Array.isArray(from)) {\n return arrCopy(from);\n }\n var to = {};\n for (var key in from) {\n if (hasOwnProperty.call(from, key)) {\n to[key] = from[key];\n }\n }\n return to;\n}\n\nfunction remove(collection, key) {\n if (!isDataStructure(collection)) {\n throw new TypeError(\n 'Cannot update non-data-structure value: ' + collection\n );\n }\n if (isImmutable(collection)) {\n if (!collection.remove) {\n throw new TypeError(\n 'Cannot update immutable value without .remove() method: ' + collection\n );\n }\n return collection.remove(key);\n }\n if (!hasOwnProperty.call(collection, key)) {\n return collection;\n }\n var collectionCopy = shallowCopy(collection);\n if (Array.isArray(collectionCopy)) {\n collectionCopy.splice(key, 1);\n } else {\n delete collectionCopy[key];\n }\n return collectionCopy;\n}\n\nfunction set(collection, key, value) {\n if (!isDataStructure(collection)) {\n throw new TypeError(\n 'Cannot update non-data-structure value: ' + collection\n );\n }\n if (isImmutable(collection)) {\n if (!collection.set) {\n throw new TypeError(\n 'Cannot update immutable value without .set() method: ' + collection\n );\n }\n return collection.set(key, value);\n }\n if (hasOwnProperty.call(collection, key) && value === collection[key]) {\n return collection;\n }\n var collectionCopy = shallowCopy(collection);\n collectionCopy[key] = value;\n return collectionCopy;\n}\n\nfunction updateIn$1(collection, keyPath, notSetValue, updater) {\n if (!updater) {\n updater = notSetValue;\n notSetValue = undefined;\n }\n var updatedValue = updateInDeeply(\n isImmutable(collection),\n collection,\n coerceKeyPath(keyPath),\n 0,\n notSetValue,\n updater\n );\n return updatedValue === NOT_SET ? notSetValue : updatedValue;\n}\n\nfunction updateInDeeply(\n inImmutable,\n existing,\n keyPath,\n i,\n notSetValue,\n updater\n) {\n var wasNotSet = existing === NOT_SET;\n if (i === keyPath.length) {\n var existingValue = wasNotSet ? notSetValue : existing;\n var newValue = updater(existingValue);\n return newValue === existingValue ? existing : newValue;\n }\n if (!wasNotSet && !isDataStructure(existing)) {\n throw new TypeError(\n 'Cannot update within non-data-structure value in path [' +\n keyPath.slice(0, i).map(quoteString) +\n ']: ' +\n existing\n );\n }\n var key = keyPath[i];\n var nextExisting = wasNotSet ? NOT_SET : get(existing, key, NOT_SET);\n var nextUpdated = updateInDeeply(\n nextExisting === NOT_SET ? inImmutable : isImmutable(nextExisting),\n nextExisting,\n keyPath,\n i + 1,\n notSetValue,\n updater\n );\n return nextUpdated === nextExisting\n ? existing\n : nextUpdated === NOT_SET\n ? remove(existing, key)\n : set(\n wasNotSet ? (inImmutable ? emptyMap() : {}) : existing,\n key,\n nextUpdated\n );\n}\n\nfunction setIn$1(collection, keyPath, value) {\n return updateIn$1(collection, keyPath, NOT_SET, function () { return value; });\n}\n\nfunction setIn(keyPath, v) {\n return setIn$1(this, keyPath, v);\n}\n\nfunction removeIn(collection, keyPath) {\n return updateIn$1(collection, keyPath, function () { return NOT_SET; });\n}\n\nfunction deleteIn(keyPath) {\n return removeIn(this, keyPath);\n}\n\nfunction update$1(collection, key, notSetValue, updater) {\n return updateIn$1(collection, [key], notSetValue, updater);\n}\n\nfunction update(key, notSetValue, updater) {\n return arguments.length === 1\n ? key(this)\n : update$1(this, key, notSetValue, updater);\n}\n\nfunction updateIn(keyPath, notSetValue, updater) {\n return updateIn$1(this, keyPath, notSetValue, updater);\n}\n\nfunction merge$1() {\n var iters = [], len = arguments.length;\n while ( len-- ) iters[ len ] = arguments[ len ];\n\n return mergeIntoKeyedWith(this, iters);\n}\n\nfunction mergeWith$1(merger) {\n var iters = [], len = arguments.length - 1;\n while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];\n\n if (typeof merger !== 'function') {\n throw new TypeError('Invalid merger function: ' + merger);\n }\n return mergeIntoKeyedWith(this, iters, merger);\n}\n\nfunction mergeIntoKeyedWith(collection, collections, merger) {\n var iters = [];\n for (var ii = 0; ii < collections.length; ii++) {\n var collection$1 = KeyedCollection(collections[ii]);\n if (collection$1.size !== 0) {\n iters.push(collection$1);\n }\n }\n if (iters.length === 0) {\n return collection;\n }\n if (\n collection.toSeq().size === 0 &&\n !collection.__ownerID &&\n iters.length === 1\n ) {\n return collection.constructor(iters[0]);\n }\n return collection.withMutations(function (collection) {\n var mergeIntoCollection = merger\n ? function (value, key) {\n update$1(collection, key, NOT_SET, function (oldVal) { return oldVal === NOT_SET ? value : merger(oldVal, value, key); }\n );\n }\n : function (value, key) {\n collection.set(key, value);\n };\n for (var ii = 0; ii < iters.length; ii++) {\n iters[ii].forEach(mergeIntoCollection);\n }\n });\n}\n\nfunction merge(collection) {\n var sources = [], len = arguments.length - 1;\n while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];\n\n return mergeWithSources(collection, sources);\n}\n\nfunction mergeWith(merger, collection) {\n var sources = [], len = arguments.length - 2;\n while ( len-- > 0 ) sources[ len ] = arguments[ len + 2 ];\n\n return mergeWithSources(collection, sources, merger);\n}\n\nfunction mergeDeep$1(collection) {\n var sources = [], len = arguments.length - 1;\n while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];\n\n return mergeDeepWithSources(collection, sources);\n}\n\nfunction mergeDeepWith$1(merger, collection) {\n var sources = [], len = arguments.length - 2;\n while ( len-- > 0 ) sources[ len ] = arguments[ len + 2 ];\n\n return mergeDeepWithSources(collection, sources, merger);\n}\n\nfunction mergeDeepWithSources(collection, sources, merger) {\n return mergeWithSources(collection, sources, deepMergerWith(merger));\n}\n\nfunction mergeWithSources(collection, sources, merger) {\n if (!isDataStructure(collection)) {\n throw new TypeError(\n 'Cannot merge into non-data-structure value: ' + collection\n );\n }\n if (isImmutable(collection)) {\n return typeof merger === 'function' && collection.mergeWith\n ? collection.mergeWith.apply(collection, [ merger ].concat( sources ))\n : collection.merge\n ? collection.merge.apply(collection, sources)\n : collection.concat.apply(collection, sources);\n }\n var isArray = Array.isArray(collection);\n var merged = collection;\n var Collection = isArray ? IndexedCollection : KeyedCollection;\n var mergeItem = isArray\n ? function (value) {\n // Copy on write\n if (merged === collection) {\n merged = shallowCopy(merged);\n }\n merged.push(value);\n }\n : function (value, key) {\n var hasVal = hasOwnProperty.call(merged, key);\n var nextVal =\n hasVal && merger ? merger(merged[key], value, key) : value;\n if (!hasVal || nextVal !== merged[key]) {\n // Copy on write\n if (merged === collection) {\n merged = shallowCopy(merged);\n }\n merged[key] = nextVal;\n }\n };\n for (var i = 0; i < sources.length; i++) {\n Collection(sources[i]).forEach(mergeItem);\n }\n return merged;\n}\n\nfunction deepMergerWith(merger) {\n function deepMerger(oldValue, newValue, key) {\n return isDataStructure(oldValue) &&\n isDataStructure(newValue) &&\n areMergeable(oldValue, newValue)\n ? mergeWithSources(oldValue, [newValue], deepMerger)\n : merger\n ? merger(oldValue, newValue, key)\n : newValue;\n }\n return deepMerger;\n}\n\n/**\n * It's unclear what the desired behavior is for merging two collections that\n * fall into separate categories between keyed, indexed, or set-like, so we only\n * consider them mergeable if they fall into the same category.\n */\nfunction areMergeable(oldDataStructure, newDataStructure) {\n var oldSeq = Seq(oldDataStructure);\n var newSeq = Seq(newDataStructure);\n // This logic assumes that a sequence can only fall into one of the three\n // categories mentioned above (since there's no `isSetLike()` method).\n return (\n isIndexed(oldSeq) === isIndexed(newSeq) &&\n isKeyed(oldSeq) === isKeyed(newSeq)\n );\n}\n\nfunction mergeDeep() {\n var iters = [], len = arguments.length;\n while ( len-- ) iters[ len ] = arguments[ len ];\n\n return mergeDeepWithSources(this, iters);\n}\n\nfunction mergeDeepWith(merger) {\n var iters = [], len = arguments.length - 1;\n while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];\n\n return mergeDeepWithSources(this, iters, merger);\n}\n\nfunction mergeIn(keyPath) {\n var iters = [], len = arguments.length - 1;\n while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];\n\n return updateIn$1(this, keyPath, emptyMap(), function (m) { return mergeWithSources(m, iters); });\n}\n\nfunction mergeDeepIn(keyPath) {\n var iters = [], len = arguments.length - 1;\n while ( len-- > 0 ) iters[ len ] = arguments[ len + 1 ];\n\n return updateIn$1(this, keyPath, emptyMap(), function (m) { return mergeDeepWithSources(m, iters); }\n );\n}\n\nfunction withMutations(fn) {\n var mutable = this.asMutable();\n fn(mutable);\n return mutable.wasAltered() ? mutable.__ensureOwner(this.__ownerID) : this;\n}\n\nfunction asMutable() {\n return this.__ownerID ? this : this.__ensureOwner(new OwnerID());\n}\n\nfunction asImmutable() {\n return this.__ensureOwner();\n}\n\nfunction wasAltered() {\n return this.__altered;\n}\n\nvar Map = /*@__PURE__*/(function (KeyedCollection) {\n function Map(value) {\n // eslint-disable-next-line no-constructor-return\n return value === undefined || value === null\n ? emptyMap()\n : isMap(value) && !isOrdered(value)\n ? value\n : emptyMap().withMutations(function (map) {\n var iter = KeyedCollection(value);\n assertNotInfinite(iter.size);\n iter.forEach(function (v, k) { return map.set(k, v); });\n });\n }\n\n if ( KeyedCollection ) Map.__proto__ = KeyedCollection;\n Map.prototype = Object.create( KeyedCollection && KeyedCollection.prototype );\n Map.prototype.constructor = Map;\n\n Map.of = function of () {\n var keyValues = [], len = arguments.length;\n while ( len-- ) keyValues[ len ] = arguments[ len ];\n\n return emptyMap().withMutations(function (map) {\n for (var i = 0; i < keyValues.length; i += 2) {\n if (i + 1 >= keyValues.length) {\n throw new Error('Missing value for key: ' + keyValues[i]);\n }\n map.set(keyValues[i], keyValues[i + 1]);\n }\n });\n };\n\n Map.prototype.toString = function toString () {\n return this.__toString('Map {', '}');\n };\n\n // @pragma Access\n\n Map.prototype.get = function get (k, notSetValue) {\n return this._root\n ? this._root.get(0, undefined, k, notSetValue)\n : notSetValue;\n };\n\n // @pragma Modification\n\n Map.prototype.set = function set (k, v) {\n return updateMap(this, k, v);\n };\n\n Map.prototype.remove = function remove (k) {\n return updateMap(this, k, NOT_SET);\n };\n\n Map.prototype.deleteAll = function deleteAll (keys) {\n var collection = Collection(keys);\n\n if (collection.size === 0) {\n return this;\n }\n\n return this.withMutations(function (map) {\n collection.forEach(function (key) { return map.remove(key); });\n });\n };\n\n Map.prototype.clear = function clear () {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = 0;\n this._root = null;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return emptyMap();\n };\n\n // @pragma Composition\n\n Map.prototype.sort = function sort (comparator) {\n // Late binding\n return OrderedMap(sortFactory(this, comparator));\n };\n\n Map.prototype.sortBy = function sortBy (mapper, comparator) {\n // Late binding\n return OrderedMap(sortFactory(this, comparator, mapper));\n };\n\n Map.prototype.map = function map (mapper, context) {\n var this$1$1 = this;\n\n return this.withMutations(function (map) {\n map.forEach(function (value, key) {\n map.set(key, mapper.call(context, value, key, this$1$1));\n });\n });\n };\n\n // @pragma Mutability\n\n Map.prototype.__iterator = function __iterator (type, reverse) {\n return new MapIterator(this, type, reverse);\n };\n\n Map.prototype.__iterate = function __iterate (fn, reverse) {\n var this$1$1 = this;\n\n var iterations = 0;\n this._root &&\n this._root.iterate(function (entry) {\n iterations++;\n return fn(entry[1], entry[0], this$1$1);\n }, reverse);\n return iterations;\n };\n\n Map.prototype.__ensureOwner = function __ensureOwner (ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n if (!ownerID) {\n if (this.size === 0) {\n return emptyMap();\n }\n this.__ownerID = ownerID;\n this.__altered = false;\n return this;\n }\n return makeMap(this.size, this._root, ownerID, this.__hash);\n };\n\n return Map;\n}(KeyedCollection));\n\nMap.isMap = isMap;\n\nvar MapPrototype = Map.prototype;\nMapPrototype[IS_MAP_SYMBOL] = true;\nMapPrototype[DELETE] = MapPrototype.remove;\nMapPrototype.removeAll = MapPrototype.deleteAll;\nMapPrototype.setIn = setIn;\nMapPrototype.removeIn = MapPrototype.deleteIn = deleteIn;\nMapPrototype.update = update;\nMapPrototype.updateIn = updateIn;\nMapPrototype.merge = MapPrototype.concat = merge$1;\nMapPrototype.mergeWith = mergeWith$1;\nMapPrototype.mergeDeep = mergeDeep;\nMapPrototype.mergeDeepWith = mergeDeepWith;\nMapPrototype.mergeIn = mergeIn;\nMapPrototype.mergeDeepIn = mergeDeepIn;\nMapPrototype.withMutations = withMutations;\nMapPrototype.wasAltered = wasAltered;\nMapPrototype.asImmutable = asImmutable;\nMapPrototype['@@transducer/init'] = MapPrototype.asMutable = asMutable;\nMapPrototype['@@transducer/step'] = function (result, arr) {\n return result.set(arr[0], arr[1]);\n};\nMapPrototype['@@transducer/result'] = function (obj) {\n return obj.asImmutable();\n};\n\n// #pragma Trie Nodes\n\nvar ArrayMapNode = function ArrayMapNode(ownerID, entries) {\n this.ownerID = ownerID;\n this.entries = entries;\n};\n\nArrayMapNode.prototype.get = function get (shift, keyHash, key, notSetValue) {\n var entries = this.entries;\n for (var ii = 0, len = entries.length; ii < len; ii++) {\n if (is(key, entries[ii][0])) {\n return entries[ii][1];\n }\n }\n return notSetValue;\n};\n\nArrayMapNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n var removed = value === NOT_SET;\n\n var entries = this.entries;\n var idx = 0;\n var len = entries.length;\n for (; idx < len; idx++) {\n if (is(key, entries[idx][0])) {\n break;\n }\n }\n var exists = idx < len;\n\n if (exists ? entries[idx][1] === value : removed) {\n return this;\n }\n\n SetRef(didAlter);\n (removed || !exists) && SetRef(didChangeSize);\n\n if (removed && entries.length === 1) {\n return; // undefined\n }\n\n if (!exists && !removed && entries.length >= MAX_ARRAY_MAP_SIZE) {\n return createNodes(ownerID, entries, key, value);\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newEntries = isEditable ? entries : arrCopy(entries);\n\n if (exists) {\n if (removed) {\n idx === len - 1\n ? newEntries.pop()\n : (newEntries[idx] = newEntries.pop());\n } else {\n newEntries[idx] = [key, value];\n }\n } else {\n newEntries.push([key, value]);\n }\n\n if (isEditable) {\n this.entries = newEntries;\n return this;\n }\n\n return new ArrayMapNode(ownerID, newEntries);\n};\n\nvar BitmapIndexedNode = function BitmapIndexedNode(ownerID, bitmap, nodes) {\n this.ownerID = ownerID;\n this.bitmap = bitmap;\n this.nodes = nodes;\n};\n\nBitmapIndexedNode.prototype.get = function get (shift, keyHash, key, notSetValue) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var bit = 1 << ((shift === 0 ? keyHash : keyHash >>> shift) & MASK);\n var bitmap = this.bitmap;\n return (bitmap & bit) === 0\n ? notSetValue\n : this.nodes[popCount(bitmap & (bit - 1))].get(\n shift + SHIFT,\n keyHash,\n key,\n notSetValue\n );\n};\n\nBitmapIndexedNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var keyHashFrag = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n var bit = 1 << keyHashFrag;\n var bitmap = this.bitmap;\n var exists = (bitmap & bit) !== 0;\n\n if (!exists && value === NOT_SET) {\n return this;\n }\n\n var idx = popCount(bitmap & (bit - 1));\n var nodes = this.nodes;\n var node = exists ? nodes[idx] : undefined;\n var newNode = updateNode(\n node,\n ownerID,\n shift + SHIFT,\n keyHash,\n key,\n value,\n didChangeSize,\n didAlter\n );\n\n if (newNode === node) {\n return this;\n }\n\n if (!exists && newNode && nodes.length >= MAX_BITMAP_INDEXED_SIZE) {\n return expandNodes(ownerID, nodes, bitmap, keyHashFrag, newNode);\n }\n\n if (\n exists &&\n !newNode &&\n nodes.length === 2 &&\n isLeafNode(nodes[idx ^ 1])\n ) {\n return nodes[idx ^ 1];\n }\n\n if (exists && newNode && nodes.length === 1 && isLeafNode(newNode)) {\n return newNode;\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newBitmap = exists ? (newNode ? bitmap : bitmap ^ bit) : bitmap | bit;\n var newNodes = exists\n ? newNode\n ? setAt(nodes, idx, newNode, isEditable)\n : spliceOut(nodes, idx, isEditable)\n : spliceIn(nodes, idx, newNode, isEditable);\n\n if (isEditable) {\n this.bitmap = newBitmap;\n this.nodes = newNodes;\n return this;\n }\n\n return new BitmapIndexedNode(ownerID, newBitmap, newNodes);\n};\n\nvar HashArrayMapNode = function HashArrayMapNode(ownerID, count, nodes) {\n this.ownerID = ownerID;\n this.count = count;\n this.nodes = nodes;\n};\n\nHashArrayMapNode.prototype.get = function get (shift, keyHash, key, notSetValue) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n var node = this.nodes[idx];\n return node\n ? node.get(shift + SHIFT, keyHash, key, notSetValue)\n : notSetValue;\n};\n\nHashArrayMapNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n var idx = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n var removed = value === NOT_SET;\n var nodes = this.nodes;\n var node = nodes[idx];\n\n if (removed && !node) {\n return this;\n }\n\n var newNode = updateNode(\n node,\n ownerID,\n shift + SHIFT,\n keyHash,\n key,\n value,\n didChangeSize,\n didAlter\n );\n if (newNode === node) {\n return this;\n }\n\n var newCount = this.count;\n if (!node) {\n newCount++;\n } else if (!newNode) {\n newCount--;\n if (newCount < MIN_HASH_ARRAY_MAP_SIZE) {\n return packNodes(ownerID, nodes, newCount, idx);\n }\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newNodes = setAt(nodes, idx, newNode, isEditable);\n\n if (isEditable) {\n this.count = newCount;\n this.nodes = newNodes;\n return this;\n }\n\n return new HashArrayMapNode(ownerID, newCount, newNodes);\n};\n\nvar HashCollisionNode = function HashCollisionNode(ownerID, keyHash, entries) {\n this.ownerID = ownerID;\n this.keyHash = keyHash;\n this.entries = entries;\n};\n\nHashCollisionNode.prototype.get = function get (shift, keyHash, key, notSetValue) {\n var entries = this.entries;\n for (var ii = 0, len = entries.length; ii < len; ii++) {\n if (is(key, entries[ii][0])) {\n return entries[ii][1];\n }\n }\n return notSetValue;\n};\n\nHashCollisionNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n if (keyHash === undefined) {\n keyHash = hash(key);\n }\n\n var removed = value === NOT_SET;\n\n if (keyHash !== this.keyHash) {\n if (removed) {\n return this;\n }\n SetRef(didAlter);\n SetRef(didChangeSize);\n return mergeIntoNode(this, ownerID, shift, keyHash, [key, value]);\n }\n\n var entries = this.entries;\n var idx = 0;\n var len = entries.length;\n for (; idx < len; idx++) {\n if (is(key, entries[idx][0])) {\n break;\n }\n }\n var exists = idx < len;\n\n if (exists ? entries[idx][1] === value : removed) {\n return this;\n }\n\n SetRef(didAlter);\n (removed || !exists) && SetRef(didChangeSize);\n\n if (removed && len === 2) {\n return new ValueNode(ownerID, this.keyHash, entries[idx ^ 1]);\n }\n\n var isEditable = ownerID && ownerID === this.ownerID;\n var newEntries = isEditable ? entries : arrCopy(entries);\n\n if (exists) {\n if (removed) {\n idx === len - 1\n ? newEntries.pop()\n : (newEntries[idx] = newEntries.pop());\n } else {\n newEntries[idx] = [key, value];\n }\n } else {\n newEntries.push([key, value]);\n }\n\n if (isEditable) {\n this.entries = newEntries;\n return this;\n }\n\n return new HashCollisionNode(ownerID, this.keyHash, newEntries);\n};\n\nvar ValueNode = function ValueNode(ownerID, keyHash, entry) {\n this.ownerID = ownerID;\n this.keyHash = keyHash;\n this.entry = entry;\n};\n\nValueNode.prototype.get = function get (shift, keyHash, key, notSetValue) {\n return is(key, this.entry[0]) ? this.entry[1] : notSetValue;\n};\n\nValueNode.prototype.update = function update (ownerID, shift, keyHash, key, value, didChangeSize, didAlter) {\n var removed = value === NOT_SET;\n var keyMatch = is(key, this.entry[0]);\n if (keyMatch ? value === this.entry[1] : removed) {\n return this;\n }\n\n SetRef(didAlter);\n\n if (removed) {\n SetRef(didChangeSize);\n return; // undefined\n }\n\n if (keyMatch) {\n if (ownerID && ownerID === this.ownerID) {\n this.entry[1] = value;\n return this;\n }\n return new ValueNode(ownerID, this.keyHash, [key, value]);\n }\n\n SetRef(didChangeSize);\n return mergeIntoNode(this, ownerID, shift, hash(key), [key, value]);\n};\n\n// #pragma Iterators\n\nArrayMapNode.prototype.iterate = HashCollisionNode.prototype.iterate =\n function (fn, reverse) {\n var entries = this.entries;\n for (var ii = 0, maxIndex = entries.length - 1; ii <= maxIndex; ii++) {\n if (fn(entries[reverse ? maxIndex - ii : ii]) === false) {\n return false;\n }\n }\n };\n\nBitmapIndexedNode.prototype.iterate = HashArrayMapNode.prototype.iterate =\n function (fn, reverse) {\n var nodes = this.nodes;\n for (var ii = 0, maxIndex = nodes.length - 1; ii <= maxIndex; ii++) {\n var node = nodes[reverse ? maxIndex - ii : ii];\n if (node && node.iterate(fn, reverse) === false) {\n return false;\n }\n }\n };\n\n// eslint-disable-next-line no-unused-vars\nValueNode.prototype.iterate = function (fn, reverse) {\n return fn(this.entry);\n};\n\nvar MapIterator = /*@__PURE__*/(function (Iterator) {\n function MapIterator(map, type, reverse) {\n this._type = type;\n this._reverse = reverse;\n this._stack = map._root && mapIteratorFrame(map._root);\n }\n\n if ( Iterator ) MapIterator.__proto__ = Iterator;\n MapIterator.prototype = Object.create( Iterator && Iterator.prototype );\n MapIterator.prototype.constructor = MapIterator;\n\n MapIterator.prototype.next = function next () {\n var type = this._type;\n var stack = this._stack;\n while (stack) {\n var node = stack.node;\n var index = stack.index++;\n var maxIndex = (void 0);\n if (node.entry) {\n if (index === 0) {\n return mapIteratorValue(type, node.entry);\n }\n } else if (node.entries) {\n maxIndex = node.entries.length - 1;\n if (index <= maxIndex) {\n return mapIteratorValue(\n type,\n node.entries[this._reverse ? maxIndex - index : index]\n );\n }\n } else {\n maxIndex = node.nodes.length - 1;\n if (index <= maxIndex) {\n var subNode = node.nodes[this._reverse ? maxIndex - index : index];\n if (subNode) {\n if (subNode.entry) {\n return mapIteratorValue(type, subNode.entry);\n }\n stack = this._stack = mapIteratorFrame(subNode, stack);\n }\n continue;\n }\n }\n stack = this._stack = this._stack.__prev;\n }\n return iteratorDone();\n };\n\n return MapIterator;\n}(Iterator));\n\nfunction mapIteratorValue(type, entry) {\n return iteratorValue(type, entry[0], entry[1]);\n}\n\nfunction mapIteratorFrame(node, prev) {\n return {\n node: node,\n index: 0,\n __prev: prev,\n };\n}\n\nfunction makeMap(size, root, ownerID, hash) {\n var map = Object.create(MapPrototype);\n map.size = size;\n map._root = root;\n map.__ownerID = ownerID;\n map.__hash = hash;\n map.__altered = false;\n return map;\n}\n\nvar EMPTY_MAP;\nfunction emptyMap() {\n return EMPTY_MAP || (EMPTY_MAP = makeMap(0));\n}\n\nfunction updateMap(map, k, v) {\n var newRoot;\n var newSize;\n if (!map._root) {\n if (v === NOT_SET) {\n return map;\n }\n newSize = 1;\n newRoot = new ArrayMapNode(map.__ownerID, [[k, v]]);\n } else {\n var didChangeSize = MakeRef();\n var didAlter = MakeRef();\n newRoot = updateNode(\n map._root,\n map.__ownerID,\n 0,\n undefined,\n k,\n v,\n didChangeSize,\n didAlter\n );\n if (!didAlter.value) {\n return map;\n }\n newSize = map.size + (didChangeSize.value ? (v === NOT_SET ? -1 : 1) : 0);\n }\n if (map.__ownerID) {\n map.size = newSize;\n map._root = newRoot;\n map.__hash = undefined;\n map.__altered = true;\n return map;\n }\n return newRoot ? makeMap(newSize, newRoot) : emptyMap();\n}\n\nfunction updateNode(\n node,\n ownerID,\n shift,\n keyHash,\n key,\n value,\n didChangeSize,\n didAlter\n) {\n if (!node) {\n if (value === NOT_SET) {\n return node;\n }\n SetRef(didAlter);\n SetRef(didChangeSize);\n return new ValueNode(ownerID, keyHash, [key, value]);\n }\n return node.update(\n ownerID,\n shift,\n keyHash,\n key,\n value,\n didChangeSize,\n didAlter\n );\n}\n\nfunction isLeafNode(node) {\n return (\n node.constructor === ValueNode || node.constructor === HashCollisionNode\n );\n}\n\nfunction mergeIntoNode(node, ownerID, shift, keyHash, entry) {\n if (node.keyHash === keyHash) {\n return new HashCollisionNode(ownerID, keyHash, [node.entry, entry]);\n }\n\n var idx1 = (shift === 0 ? node.keyHash : node.keyHash >>> shift) & MASK;\n var idx2 = (shift === 0 ? keyHash : keyHash >>> shift) & MASK;\n\n var newNode;\n var nodes =\n idx1 === idx2\n ? [mergeIntoNode(node, ownerID, shift + SHIFT, keyHash, entry)]\n : ((newNode = new ValueNode(ownerID, keyHash, entry)),\n idx1 < idx2 ? [node, newNode] : [newNode, node]);\n\n return new BitmapIndexedNode(ownerID, (1 << idx1) | (1 << idx2), nodes);\n}\n\nfunction createNodes(ownerID, entries, key, value) {\n if (!ownerID) {\n ownerID = new OwnerID();\n }\n var node = new ValueNode(ownerID, hash(key), [key, value]);\n for (var ii = 0; ii < entries.length; ii++) {\n var entry = entries[ii];\n node = node.update(ownerID, 0, undefined, entry[0], entry[1]);\n }\n return node;\n}\n\nfunction packNodes(ownerID, nodes, count, excluding) {\n var bitmap = 0;\n var packedII = 0;\n var packedNodes = new Array(count);\n for (var ii = 0, bit = 1, len = nodes.length; ii < len; ii++, bit <<= 1) {\n var node = nodes[ii];\n if (node !== undefined && ii !== excluding) {\n bitmap |= bit;\n packedNodes[packedII++] = node;\n }\n }\n return new BitmapIndexedNode(ownerID, bitmap, packedNodes);\n}\n\nfunction expandNodes(ownerID, nodes, bitmap, including, node) {\n var count = 0;\n var expandedNodes = new Array(SIZE);\n for (var ii = 0; bitmap !== 0; ii++, bitmap >>>= 1) {\n expandedNodes[ii] = bitmap & 1 ? nodes[count++] : undefined;\n }\n expandedNodes[including] = node;\n return new HashArrayMapNode(ownerID, count + 1, expandedNodes);\n}\n\nfunction popCount(x) {\n x -= (x >> 1) & 0x55555555;\n x = (x & 0x33333333) + ((x >> 2) & 0x33333333);\n x = (x + (x >> 4)) & 0x0f0f0f0f;\n x += x >> 8;\n x += x >> 16;\n return x & 0x7f;\n}\n\nfunction setAt(array, idx, val, canEdit) {\n var newArray = canEdit ? array : arrCopy(array);\n newArray[idx] = val;\n return newArray;\n}\n\nfunction spliceIn(array, idx, val, canEdit) {\n var newLen = array.length + 1;\n if (canEdit && idx + 1 === newLen) {\n array[idx] = val;\n return array;\n }\n var newArray = new Array(newLen);\n var after = 0;\n for (var ii = 0; ii < newLen; ii++) {\n if (ii === idx) {\n newArray[ii] = val;\n after = -1;\n } else {\n newArray[ii] = array[ii + after];\n }\n }\n return newArray;\n}\n\nfunction spliceOut(array, idx, canEdit) {\n var newLen = array.length - 1;\n if (canEdit && idx === newLen) {\n array.pop();\n return array;\n }\n var newArray = new Array(newLen);\n var after = 0;\n for (var ii = 0; ii < newLen; ii++) {\n if (ii === idx) {\n after = 1;\n }\n newArray[ii] = array[ii + after];\n }\n return newArray;\n}\n\nvar MAX_ARRAY_MAP_SIZE = SIZE / 4;\nvar MAX_BITMAP_INDEXED_SIZE = SIZE / 2;\nvar MIN_HASH_ARRAY_MAP_SIZE = SIZE / 4;\n\nvar IS_LIST_SYMBOL = '@@__IMMUTABLE_LIST__@@';\n\nfunction isList(maybeList) {\n return Boolean(maybeList && maybeList[IS_LIST_SYMBOL]);\n}\n\nvar List = /*@__PURE__*/(function (IndexedCollection) {\n function List(value) {\n var empty = emptyList();\n if (value === undefined || value === null) {\n // eslint-disable-next-line no-constructor-return\n return empty;\n }\n if (isList(value)) {\n // eslint-disable-next-line no-constructor-return\n return value;\n }\n var iter = IndexedCollection(value);\n var size = iter.size;\n if (size === 0) {\n // eslint-disable-next-line no-constructor-return\n return empty;\n }\n assertNotInfinite(size);\n if (size > 0 && size < SIZE) {\n // eslint-disable-next-line no-constructor-return\n return makeList(0, size, SHIFT, null, new VNode(iter.toArray()));\n }\n // eslint-disable-next-line no-constructor-return\n return empty.withMutations(function (list) {\n list.setSize(size);\n iter.forEach(function (v, i) { return list.set(i, v); });\n });\n }\n\n if ( IndexedCollection ) List.__proto__ = IndexedCollection;\n List.prototype = Object.create( IndexedCollection && IndexedCollection.prototype );\n List.prototype.constructor = List;\n\n List.of = function of (/*...values*/) {\n return this(arguments);\n };\n\n List.prototype.toString = function toString () {\n return this.__toString('List [', ']');\n };\n\n // @pragma Access\n\n List.prototype.get = function get (index, notSetValue) {\n index = wrapIndex(this, index);\n if (index >= 0 && index < this.size) {\n index += this._origin;\n var node = listNodeFor(this, index);\n return node && node.array[index & MASK];\n }\n return notSetValue;\n };\n\n // @pragma Modification\n\n List.prototype.set = function set (index, value) {\n return updateList(this, index, value);\n };\n\n List.prototype.remove = function remove (index) {\n return !this.has(index)\n ? this\n : index === 0\n ? this.shift()\n : index === this.size - 1\n ? this.pop()\n : this.splice(index, 1);\n };\n\n List.prototype.insert = function insert (index, value) {\n return this.splice(index, 0, value);\n };\n\n List.prototype.clear = function clear () {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = this._origin = this._capacity = 0;\n this._level = SHIFT;\n this._root = this._tail = this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return emptyList();\n };\n\n List.prototype.push = function push (/*...values*/) {\n var values = arguments;\n var oldSize = this.size;\n return this.withMutations(function (list) {\n setListBounds(list, 0, oldSize + values.length);\n for (var ii = 0; ii < values.length; ii++) {\n list.set(oldSize + ii, values[ii]);\n }\n });\n };\n\n List.prototype.pop = function pop () {\n return setListBounds(this, 0, -1);\n };\n\n List.prototype.unshift = function unshift (/*...values*/) {\n var values = arguments;\n return this.withMutations(function (list) {\n setListBounds(list, -values.length);\n for (var ii = 0; ii < values.length; ii++) {\n list.set(ii, values[ii]);\n }\n });\n };\n\n List.prototype.shift = function shift () {\n return setListBounds(this, 1);\n };\n\n // @pragma Composition\n\n List.prototype.concat = function concat (/*...collections*/) {\n var arguments$1 = arguments;\n\n var seqs = [];\n for (var i = 0; i < arguments.length; i++) {\n var argument = arguments$1[i];\n var seq = IndexedCollection(\n typeof argument !== 'string' && hasIterator(argument)\n ? argument\n : [argument]\n );\n if (seq.size !== 0) {\n seqs.push(seq);\n }\n }\n if (seqs.length === 0) {\n return this;\n }\n if (this.size === 0 && !this.__ownerID && seqs.length === 1) {\n return this.constructor(seqs[0]);\n }\n return this.withMutations(function (list) {\n seqs.forEach(function (seq) { return seq.forEach(function (value) { return list.push(value); }); });\n });\n };\n\n List.prototype.setSize = function setSize (size) {\n return setListBounds(this, 0, size);\n };\n\n List.prototype.map = function map (mapper, context) {\n var this$1$1 = this;\n\n return this.withMutations(function (list) {\n for (var i = 0; i < this$1$1.size; i++) {\n list.set(i, mapper.call(context, list.get(i), i, this$1$1));\n }\n });\n };\n\n // @pragma Iteration\n\n List.prototype.slice = function slice (begin, end) {\n var size = this.size;\n if (wholeSlice(begin, end, size)) {\n return this;\n }\n return setListBounds(\n this,\n resolveBegin(begin, size),\n resolveEnd(end, size)\n );\n };\n\n List.prototype.__iterator = function __iterator (type, reverse) {\n var index = reverse ? this.size : 0;\n var values = iterateList(this, reverse);\n return new Iterator(function () {\n var value = values();\n return value === DONE\n ? iteratorDone()\n : iteratorValue(type, reverse ? --index : index++, value);\n });\n };\n\n List.prototype.__iterate = function __iterate (fn, reverse) {\n var index = reverse ? this.size : 0;\n var values = iterateList(this, reverse);\n var value;\n while ((value = values()) !== DONE) {\n if (fn(value, reverse ? --index : index++, this) === false) {\n break;\n }\n }\n return index;\n };\n\n List.prototype.__ensureOwner = function __ensureOwner (ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n if (!ownerID) {\n if (this.size === 0) {\n return emptyList();\n }\n this.__ownerID = ownerID;\n this.__altered = false;\n return this;\n }\n return makeList(\n this._origin,\n this._capacity,\n this._level,\n this._root,\n this._tail,\n ownerID,\n this.__hash\n );\n };\n\n return List;\n}(IndexedCollection));\n\nList.isList = isList;\n\nvar ListPrototype = List.prototype;\nListPrototype[IS_LIST_SYMBOL] = true;\nListPrototype[DELETE] = ListPrototype.remove;\nListPrototype.merge = ListPrototype.concat;\nListPrototype.setIn = setIn;\nListPrototype.deleteIn = ListPrototype.removeIn = deleteIn;\nListPrototype.update = update;\nListPrototype.updateIn = updateIn;\nListPrototype.mergeIn = mergeIn;\nListPrototype.mergeDeepIn = mergeDeepIn;\nListPrototype.withMutations = withMutations;\nListPrototype.wasAltered = wasAltered;\nListPrototype.asImmutable = asImmutable;\nListPrototype['@@transducer/init'] = ListPrototype.asMutable = asMutable;\nListPrototype['@@transducer/step'] = function (result, arr) {\n return result.push(arr);\n};\nListPrototype['@@transducer/result'] = function (obj) {\n return obj.asImmutable();\n};\n\nvar VNode = function VNode(array, ownerID) {\n this.array = array;\n this.ownerID = ownerID;\n};\n\n// TODO: seems like these methods are very similar\n\nVNode.prototype.removeBefore = function removeBefore (ownerID, level, index) {\n if (index === level ? 1 << level : this.array.length === 0) {\n return this;\n }\n var originIndex = (index >>> level) & MASK;\n if (originIndex >= this.array.length) {\n return new VNode([], ownerID);\n }\n var removingFirst = originIndex === 0;\n var newChild;\n if (level > 0) {\n var oldChild = this.array[originIndex];\n newChild =\n oldChild && oldChild.removeBefore(ownerID, level - SHIFT, index);\n if (newChild === oldChild && removingFirst) {\n return this;\n }\n }\n if (removingFirst && !newChild) {\n return this;\n }\n var editable = editableVNode(this, ownerID);\n if (!removingFirst) {\n for (var ii = 0; ii < originIndex; ii++) {\n editable.array[ii] = undefined;\n }\n }\n if (newChild) {\n editable.array[originIndex] = newChild;\n }\n return editable;\n};\n\nVNode.prototype.removeAfter = function removeAfter (ownerID, level, index) {\n if (index === (level ? 1 << level : 0) || this.array.length === 0) {\n return this;\n }\n var sizeIndex = ((index - 1) >>> level) & MASK;\n if (sizeIndex >= this.array.length) {\n return this;\n }\n\n var newChild;\n if (level > 0) {\n var oldChild = this.array[sizeIndex];\n newChild =\n oldChild && oldChild.removeAfter(ownerID, level - SHIFT, index);\n if (newChild === oldChild && sizeIndex === this.array.length - 1) {\n return this;\n }\n }\n\n var editable = editableVNode(this, ownerID);\n editable.array.splice(sizeIndex + 1);\n if (newChild) {\n editable.array[sizeIndex] = newChild;\n }\n return editable;\n};\n\nvar DONE = {};\n\nfunction iterateList(list, reverse) {\n var left = list._origin;\n var right = list._capacity;\n var tailPos = getTailOffset(right);\n var tail = list._tail;\n\n return iterateNodeOrLeaf(list._root, list._level, 0);\n\n function iterateNodeOrLeaf(node, level, offset) {\n return level === 0\n ? iterateLeaf(node, offset)\n : iterateNode(node, level, offset);\n }\n\n function iterateLeaf(node, offset) {\n var array = offset === tailPos ? tail && tail.array : node && node.array;\n var from = offset > left ? 0 : left - offset;\n var to = right - offset;\n if (to > SIZE) {\n to = SIZE;\n }\n return function () {\n if (from === to) {\n return DONE;\n }\n var idx = reverse ? --to : from++;\n return array && array[idx];\n };\n }\n\n function iterateNode(node, level, offset) {\n var values;\n var array = node && node.array;\n var from = offset > left ? 0 : (left - offset) >> level;\n var to = ((right - offset) >> level) + 1;\n if (to > SIZE) {\n to = SIZE;\n }\n return function () {\n while (true) {\n if (values) {\n var value = values();\n if (value !== DONE) {\n return value;\n }\n values = null;\n }\n if (from === to) {\n return DONE;\n }\n var idx = reverse ? --to : from++;\n values = iterateNodeOrLeaf(\n array && array[idx],\n level - SHIFT,\n offset + (idx << level)\n );\n }\n };\n }\n}\n\nfunction makeList(origin, capacity, level, root, tail, ownerID, hash) {\n var list = Object.create(ListPrototype);\n list.size = capacity - origin;\n list._origin = origin;\n list._capacity = capacity;\n list._level = level;\n list._root = root;\n list._tail = tail;\n list.__ownerID = ownerID;\n list.__hash = hash;\n list.__altered = false;\n return list;\n}\n\nvar EMPTY_LIST;\nfunction emptyList() {\n return EMPTY_LIST || (EMPTY_LIST = makeList(0, 0, SHIFT));\n}\n\nfunction updateList(list, index, value) {\n index = wrapIndex(list, index);\n\n if (index !== index) {\n return list;\n }\n\n if (index >= list.size || index < 0) {\n return list.withMutations(function (list) {\n index < 0\n ? setListBounds(list, index).set(0, value)\n : setListBounds(list, 0, index + 1).set(index, value);\n });\n }\n\n index += list._origin;\n\n var newTail = list._tail;\n var newRoot = list._root;\n var didAlter = MakeRef();\n if (index >= getTailOffset(list._capacity)) {\n newTail = updateVNode(newTail, list.__ownerID, 0, index, value, didAlter);\n } else {\n newRoot = updateVNode(\n newRoot,\n list.__ownerID,\n list._level,\n index,\n value,\n didAlter\n );\n }\n\n if (!didAlter.value) {\n return list;\n }\n\n if (list.__ownerID) {\n list._root = newRoot;\n list._tail = newTail;\n list.__hash = undefined;\n list.__altered = true;\n return list;\n }\n return makeList(list._origin, list._capacity, list._level, newRoot, newTail);\n}\n\nfunction updateVNode(node, ownerID, level, index, value, didAlter) {\n var idx = (index >>> level) & MASK;\n var nodeHas = node && idx < node.array.length;\n if (!nodeHas && value === undefined) {\n return node;\n }\n\n var newNode;\n\n if (level > 0) {\n var lowerNode = node && node.array[idx];\n var newLowerNode = updateVNode(\n lowerNode,\n ownerID,\n level - SHIFT,\n index,\n value,\n didAlter\n );\n if (newLowerNode === lowerNode) {\n return node;\n }\n newNode = editableVNode(node, ownerID);\n newNode.array[idx] = newLowerNode;\n return newNode;\n }\n\n if (nodeHas && node.array[idx] === value) {\n return node;\n }\n\n if (didAlter) {\n SetRef(didAlter);\n }\n\n newNode = editableVNode(node, ownerID);\n if (value === undefined && idx === newNode.array.length - 1) {\n newNode.array.pop();\n } else {\n newNode.array[idx] = value;\n }\n return newNode;\n}\n\nfunction editableVNode(node, ownerID) {\n if (ownerID && node && ownerID === node.ownerID) {\n return node;\n }\n return new VNode(node ? node.array.slice() : [], ownerID);\n}\n\nfunction listNodeFor(list, rawIndex) {\n if (rawIndex >= getTailOffset(list._capacity)) {\n return list._tail;\n }\n if (rawIndex < 1 << (list._level + SHIFT)) {\n var node = list._root;\n var level = list._level;\n while (node && level > 0) {\n node = node.array[(rawIndex >>> level) & MASK];\n level -= SHIFT;\n }\n return node;\n }\n}\n\nfunction setListBounds(list, begin, end) {\n // Sanitize begin & end using this shorthand for ToInt32(argument)\n // http://www.ecma-international.org/ecma-262/6.0/#sec-toint32\n if (begin !== undefined) {\n begin |= 0;\n }\n if (end !== undefined) {\n end |= 0;\n }\n var owner = list.__ownerID || new OwnerID();\n var oldOrigin = list._origin;\n var oldCapacity = list._capacity;\n var newOrigin = oldOrigin + begin;\n var newCapacity =\n end === undefined\n ? oldCapacity\n : end < 0\n ? oldCapacity + end\n : oldOrigin + end;\n if (newOrigin === oldOrigin && newCapacity === oldCapacity) {\n return list;\n }\n\n // If it's going to end after it starts, it's empty.\n if (newOrigin >= newCapacity) {\n return list.clear();\n }\n\n var newLevel = list._level;\n var newRoot = list._root;\n\n // New origin might need creating a higher root.\n var offsetShift = 0;\n while (newOrigin + offsetShift < 0) {\n newRoot = new VNode(\n newRoot && newRoot.array.length ? [undefined, newRoot] : [],\n owner\n );\n newLevel += SHIFT;\n offsetShift += 1 << newLevel;\n }\n if (offsetShift) {\n newOrigin += offsetShift;\n oldOrigin += offsetShift;\n newCapacity += offsetShift;\n oldCapacity += offsetShift;\n }\n\n var oldTailOffset = getTailOffset(oldCapacity);\n var newTailOffset = getTailOffset(newCapacity);\n\n // New size might need creating a higher root.\n while (newTailOffset >= 1 << (newLevel + SHIFT)) {\n newRoot = new VNode(\n newRoot && newRoot.array.length ? [newRoot] : [],\n owner\n );\n newLevel += SHIFT;\n }\n\n // Locate or create the new tail.\n var oldTail = list._tail;\n var newTail =\n newTailOffset < oldTailOffset\n ? listNodeFor(list, newCapacity - 1)\n : newTailOffset > oldTailOffset\n ? new VNode([], owner)\n : oldTail;\n\n // Merge Tail into tree.\n if (\n oldTail &&\n newTailOffset > oldTailOffset &&\n newOrigin < oldCapacity &&\n oldTail.array.length\n ) {\n newRoot = editableVNode(newRoot, owner);\n var node = newRoot;\n for (var level = newLevel; level > SHIFT; level -= SHIFT) {\n var idx = (oldTailOffset >>> level) & MASK;\n node = node.array[idx] = editableVNode(node.array[idx], owner);\n }\n node.array[(oldTailOffset >>> SHIFT) & MASK] = oldTail;\n }\n\n // If the size has been reduced, there's a chance the tail needs to be trimmed.\n if (newCapacity < oldCapacity) {\n newTail = newTail && newTail.removeAfter(owner, 0, newCapacity);\n }\n\n // If the new origin is within the tail, then we do not need a root.\n if (newOrigin >= newTailOffset) {\n newOrigin -= newTailOffset;\n newCapacity -= newTailOffset;\n newLevel = SHIFT;\n newRoot = null;\n newTail = newTail && newTail.removeBefore(owner, 0, newOrigin);\n\n // Otherwise, if the root has been trimmed, garbage collect.\n } else if (newOrigin > oldOrigin || newTailOffset < oldTailOffset) {\n offsetShift = 0;\n\n // Identify the new top root node of the subtree of the old root.\n while (newRoot) {\n var beginIndex = (newOrigin >>> newLevel) & MASK;\n if ((beginIndex !== newTailOffset >>> newLevel) & MASK) {\n break;\n }\n if (beginIndex) {\n offsetShift += (1 << newLevel) * beginIndex;\n }\n newLevel -= SHIFT;\n newRoot = newRoot.array[beginIndex];\n }\n\n // Trim the new sides of the new root.\n if (newRoot && newOrigin > oldOrigin) {\n newRoot = newRoot.removeBefore(owner, newLevel, newOrigin - offsetShift);\n }\n if (newRoot && newTailOffset < oldTailOffset) {\n newRoot = newRoot.removeAfter(\n owner,\n newLevel,\n newTailOffset - offsetShift\n );\n }\n if (offsetShift) {\n newOrigin -= offsetShift;\n newCapacity -= offsetShift;\n }\n }\n\n if (list.__ownerID) {\n list.size = newCapacity - newOrigin;\n list._origin = newOrigin;\n list._capacity = newCapacity;\n list._level = newLevel;\n list._root = newRoot;\n list._tail = newTail;\n list.__hash = undefined;\n list.__altered = true;\n return list;\n }\n return makeList(newOrigin, newCapacity, newLevel, newRoot, newTail);\n}\n\nfunction getTailOffset(size) {\n return size < SIZE ? 0 : ((size - 1) >>> SHIFT) << SHIFT;\n}\n\nvar OrderedMap = /*@__PURE__*/(function (Map) {\n function OrderedMap(value) {\n // eslint-disable-next-line no-constructor-return\n return value === undefined || value === null\n ? emptyOrderedMap()\n : isOrderedMap(value)\n ? value\n : emptyOrderedMap().withMutations(function (map) {\n var iter = KeyedCollection(value);\n assertNotInfinite(iter.size);\n iter.forEach(function (v, k) { return map.set(k, v); });\n });\n }\n\n if ( Map ) OrderedMap.__proto__ = Map;\n OrderedMap.prototype = Object.create( Map && Map.prototype );\n OrderedMap.prototype.constructor = OrderedMap;\n\n OrderedMap.of = function of (/*...values*/) {\n return this(arguments);\n };\n\n OrderedMap.prototype.toString = function toString () {\n return this.__toString('OrderedMap {', '}');\n };\n\n // @pragma Access\n\n OrderedMap.prototype.get = function get (k, notSetValue) {\n var index = this._map.get(k);\n return index !== undefined ? this._list.get(index)[1] : notSetValue;\n };\n\n // @pragma Modification\n\n OrderedMap.prototype.clear = function clear () {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = 0;\n this._map.clear();\n this._list.clear();\n this.__altered = true;\n return this;\n }\n return emptyOrderedMap();\n };\n\n OrderedMap.prototype.set = function set (k, v) {\n return updateOrderedMap(this, k, v);\n };\n\n OrderedMap.prototype.remove = function remove (k) {\n return updateOrderedMap(this, k, NOT_SET);\n };\n\n OrderedMap.prototype.__iterate = function __iterate (fn, reverse) {\n var this$1$1 = this;\n\n return this._list.__iterate(\n function (entry) { return entry && fn(entry[1], entry[0], this$1$1); },\n reverse\n );\n };\n\n OrderedMap.prototype.__iterator = function __iterator (type, reverse) {\n return this._list.fromEntrySeq().__iterator(type, reverse);\n };\n\n OrderedMap.prototype.__ensureOwner = function __ensureOwner (ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n var newMap = this._map.__ensureOwner(ownerID);\n var newList = this._list.__ensureOwner(ownerID);\n if (!ownerID) {\n if (this.size === 0) {\n return emptyOrderedMap();\n }\n this.__ownerID = ownerID;\n this.__altered = false;\n this._map = newMap;\n this._list = newList;\n return this;\n }\n return makeOrderedMap(newMap, newList, ownerID, this.__hash);\n };\n\n return OrderedMap;\n}(Map));\n\nOrderedMap.isOrderedMap = isOrderedMap;\n\nOrderedMap.prototype[IS_ORDERED_SYMBOL] = true;\nOrderedMap.prototype[DELETE] = OrderedMap.prototype.remove;\n\nfunction makeOrderedMap(map, list, ownerID, hash) {\n var omap = Object.create(OrderedMap.prototype);\n omap.size = map ? map.size : 0;\n omap._map = map;\n omap._list = list;\n omap.__ownerID = ownerID;\n omap.__hash = hash;\n omap.__altered = false;\n return omap;\n}\n\nvar EMPTY_ORDERED_MAP;\nfunction emptyOrderedMap() {\n return (\n EMPTY_ORDERED_MAP ||\n (EMPTY_ORDERED_MAP = makeOrderedMap(emptyMap(), emptyList()))\n );\n}\n\nfunction updateOrderedMap(omap, k, v) {\n var map = omap._map;\n var list = omap._list;\n var i = map.get(k);\n var has = i !== undefined;\n var newMap;\n var newList;\n if (v === NOT_SET) {\n // removed\n if (!has) {\n return omap;\n }\n if (list.size >= SIZE && list.size >= map.size * 2) {\n newList = list.filter(function (entry, idx) { return entry !== undefined && i !== idx; });\n newMap = newList\n .toKeyedSeq()\n .map(function (entry) { return entry[0]; })\n .flip()\n .toMap();\n if (omap.__ownerID) {\n newMap.__ownerID = newList.__ownerID = omap.__ownerID;\n }\n } else {\n newMap = map.remove(k);\n newList = i === list.size - 1 ? list.pop() : list.set(i, undefined);\n }\n } else if (has) {\n if (v === list.get(i)[1]) {\n return omap;\n }\n newMap = map;\n newList = list.set(i, [k, v]);\n } else {\n newMap = map.set(k, list.size);\n newList = list.set(list.size, [k, v]);\n }\n if (omap.__ownerID) {\n omap.size = newMap.size;\n omap._map = newMap;\n omap._list = newList;\n omap.__hash = undefined;\n omap.__altered = true;\n return omap;\n }\n return makeOrderedMap(newMap, newList);\n}\n\nvar IS_STACK_SYMBOL = '@@__IMMUTABLE_STACK__@@';\n\nfunction isStack(maybeStack) {\n return Boolean(maybeStack && maybeStack[IS_STACK_SYMBOL]);\n}\n\nvar Stack = /*@__PURE__*/(function (IndexedCollection) {\n function Stack(value) {\n // eslint-disable-next-line no-constructor-return\n return value === undefined || value === null\n ? emptyStack()\n : isStack(value)\n ? value\n : emptyStack().pushAll(value);\n }\n\n if ( IndexedCollection ) Stack.__proto__ = IndexedCollection;\n Stack.prototype = Object.create( IndexedCollection && IndexedCollection.prototype );\n Stack.prototype.constructor = Stack;\n\n Stack.of = function of (/*...values*/) {\n return this(arguments);\n };\n\n Stack.prototype.toString = function toString () {\n return this.__toString('Stack [', ']');\n };\n\n // @pragma Access\n\n Stack.prototype.get = function get (index, notSetValue) {\n var head = this._head;\n index = wrapIndex(this, index);\n while (head && index--) {\n head = head.next;\n }\n return head ? head.value : notSetValue;\n };\n\n Stack.prototype.peek = function peek () {\n return this._head && this._head.value;\n };\n\n // @pragma Modification\n\n Stack.prototype.push = function push (/*...values*/) {\n var arguments$1 = arguments;\n\n if (arguments.length === 0) {\n return this;\n }\n var newSize = this.size + arguments.length;\n var head = this._head;\n for (var ii = arguments.length - 1; ii >= 0; ii--) {\n head = {\n value: arguments$1[ii],\n next: head,\n };\n }\n if (this.__ownerID) {\n this.size = newSize;\n this._head = head;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return makeStack(newSize, head);\n };\n\n Stack.prototype.pushAll = function pushAll (iter) {\n iter = IndexedCollection(iter);\n if (iter.size === 0) {\n return this;\n }\n if (this.size === 0 && isStack(iter)) {\n return iter;\n }\n assertNotInfinite(iter.size);\n var newSize = this.size;\n var head = this._head;\n iter.__iterate(function (value) {\n newSize++;\n head = {\n value: value,\n next: head,\n };\n }, /* reverse */ true);\n if (this.__ownerID) {\n this.size = newSize;\n this._head = head;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return makeStack(newSize, head);\n };\n\n Stack.prototype.pop = function pop () {\n return this.slice(1);\n };\n\n Stack.prototype.clear = function clear () {\n if (this.size === 0) {\n return this;\n }\n if (this.__ownerID) {\n this.size = 0;\n this._head = undefined;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return emptyStack();\n };\n\n Stack.prototype.slice = function slice (begin, end) {\n if (wholeSlice(begin, end, this.size)) {\n return this;\n }\n var resolvedBegin = resolveBegin(begin, this.size);\n var resolvedEnd = resolveEnd(end, this.size);\n if (resolvedEnd !== this.size) {\n // super.slice(begin, end);\n return IndexedCollection.prototype.slice.call(this, begin, end);\n }\n var newSize = this.size - resolvedBegin;\n var head = this._head;\n while (resolvedBegin--) {\n head = head.next;\n }\n if (this.__ownerID) {\n this.size = newSize;\n this._head = head;\n this.__hash = undefined;\n this.__altered = true;\n return this;\n }\n return makeStack(newSize, head);\n };\n\n // @pragma Mutability\n\n Stack.prototype.__ensureOwner = function __ensureOwner (ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n if (!ownerID) {\n if (this.size === 0) {\n return emptyStack();\n }\n this.__ownerID = ownerID;\n this.__altered = false;\n return this;\n }\n return makeStack(this.size, this._head, ownerID, this.__hash);\n };\n\n // @pragma Iteration\n\n Stack.prototype.__iterate = function __iterate (fn, reverse) {\n var this$1$1 = this;\n\n if (reverse) {\n return new ArraySeq(this.toArray()).__iterate(\n function (v, k) { return fn(v, k, this$1$1); },\n reverse\n );\n }\n var iterations = 0;\n var node = this._head;\n while (node) {\n if (fn(node.value, iterations++, this) === false) {\n break;\n }\n node = node.next;\n }\n return iterations;\n };\n\n Stack.prototype.__iterator = function __iterator (type, reverse) {\n if (reverse) {\n return new ArraySeq(this.toArray()).__iterator(type, reverse);\n }\n var iterations = 0;\n var node = this._head;\n return new Iterator(function () {\n if (node) {\n var value = node.value;\n node = node.next;\n return iteratorValue(type, iterations++, value);\n }\n return iteratorDone();\n });\n };\n\n return Stack;\n}(IndexedCollection));\n\nStack.isStack = isStack;\n\nvar StackPrototype = Stack.prototype;\nStackPrototype[IS_STACK_SYMBOL] = true;\nStackPrototype.shift = StackPrototype.pop;\nStackPrototype.unshift = StackPrototype.push;\nStackPrototype.unshiftAll = StackPrototype.pushAll;\nStackPrototype.withMutations = withMutations;\nStackPrototype.wasAltered = wasAltered;\nStackPrototype.asImmutable = asImmutable;\nStackPrototype['@@transducer/init'] = StackPrototype.asMutable = asMutable;\nStackPrototype['@@transducer/step'] = function (result, arr) {\n return result.unshift(arr);\n};\nStackPrototype['@@transducer/result'] = function (obj) {\n return obj.asImmutable();\n};\n\nfunction makeStack(size, head, ownerID, hash) {\n var map = Object.create(StackPrototype);\n map.size = size;\n map._head = head;\n map.__ownerID = ownerID;\n map.__hash = hash;\n map.__altered = false;\n return map;\n}\n\nvar EMPTY_STACK;\nfunction emptyStack() {\n return EMPTY_STACK || (EMPTY_STACK = makeStack(0));\n}\n\nvar IS_SET_SYMBOL = '@@__IMMUTABLE_SET__@@';\n\nfunction isSet(maybeSet) {\n return Boolean(maybeSet && maybeSet[IS_SET_SYMBOL]);\n}\n\nfunction isOrderedSet(maybeOrderedSet) {\n return isSet(maybeOrderedSet) && isOrdered(maybeOrderedSet);\n}\n\nfunction deepEqual(a, b) {\n if (a === b) {\n return true;\n }\n\n if (\n !isCollection(b) ||\n (a.size !== undefined && b.size !== undefined && a.size !== b.size) ||\n (a.__hash !== undefined &&\n b.__hash !== undefined &&\n a.__hash !== b.__hash) ||\n isKeyed(a) !== isKeyed(b) ||\n isIndexed(a) !== isIndexed(b) ||\n isOrdered(a) !== isOrdered(b)\n ) {\n return false;\n }\n\n if (a.size === 0 && b.size === 0) {\n return true;\n }\n\n var notAssociative = !isAssociative(a);\n\n if (isOrdered(a)) {\n var entries = a.entries();\n return (\n b.every(function (v, k) {\n var entry = entries.next().value;\n return entry && is(entry[1], v) && (notAssociative || is(entry[0], k));\n }) && entries.next().done\n );\n }\n\n var flipped = false;\n\n if (a.size === undefined) {\n if (b.size === undefined) {\n if (typeof a.cacheResult === 'function') {\n a.cacheResult();\n }\n } else {\n flipped = true;\n var _ = a;\n a = b;\n b = _;\n }\n }\n\n var allEqual = true;\n var bSize = b.__iterate(function (v, k) {\n if (\n notAssociative\n ? !a.has(v)\n : flipped\n ? !is(v, a.get(k, NOT_SET))\n : !is(a.get(k, NOT_SET), v)\n ) {\n allEqual = false;\n return false;\n }\n });\n\n return allEqual && a.size === bSize;\n}\n\nfunction mixin(ctor, methods) {\n var keyCopier = function (key) {\n ctor.prototype[key] = methods[key];\n };\n Object.keys(methods).forEach(keyCopier);\n Object.getOwnPropertySymbols &&\n Object.getOwnPropertySymbols(methods).forEach(keyCopier);\n return ctor;\n}\n\nfunction toJS(value) {\n if (!value || typeof value !== 'object') {\n return value;\n }\n if (!isCollection(value)) {\n if (!isDataStructure(value)) {\n return value;\n }\n value = Seq(value);\n }\n if (isKeyed(value)) {\n var result$1 = {};\n value.__iterate(function (v, k) {\n result$1[k] = toJS(v);\n });\n return result$1;\n }\n var result = [];\n value.__iterate(function (v) {\n result.push(toJS(v));\n });\n return result;\n}\n\nvar Set = /*@__PURE__*/(function (SetCollection) {\n function Set(value) {\n // eslint-disable-next-line no-constructor-return\n return value === undefined || value === null\n ? emptySet()\n : isSet(value) && !isOrdered(value)\n ? value\n : emptySet().withMutations(function (set) {\n var iter = SetCollection(value);\n assertNotInfinite(iter.size);\n iter.forEach(function (v) { return set.add(v); });\n });\n }\n\n if ( SetCollection ) Set.__proto__ = SetCollection;\n Set.prototype = Object.create( SetCollection && SetCollection.prototype );\n Set.prototype.constructor = Set;\n\n Set.of = function of (/*...values*/) {\n return this(arguments);\n };\n\n Set.fromKeys = function fromKeys (value) {\n return this(KeyedCollection(value).keySeq());\n };\n\n Set.intersect = function intersect (sets) {\n sets = Collection(sets).toArray();\n return sets.length\n ? SetPrototype.intersect.apply(Set(sets.pop()), sets)\n : emptySet();\n };\n\n Set.union = function union (sets) {\n sets = Collection(sets).toArray();\n return sets.length\n ? SetPrototype.union.apply(Set(sets.pop()), sets)\n : emptySet();\n };\n\n Set.prototype.toString = function toString () {\n return this.__toString('Set {', '}');\n };\n\n // @pragma Access\n\n Set.prototype.has = function has (value) {\n return this._map.has(value);\n };\n\n // @pragma Modification\n\n Set.prototype.add = function add (value) {\n return updateSet(this, this._map.set(value, value));\n };\n\n Set.prototype.remove = function remove (value) {\n return updateSet(this, this._map.remove(value));\n };\n\n Set.prototype.clear = function clear () {\n return updateSet(this, this._map.clear());\n };\n\n // @pragma Composition\n\n Set.prototype.map = function map (mapper, context) {\n var this$1$1 = this;\n\n // keep track if the set is altered by the map function\n var didChanges = false;\n\n var newMap = updateSet(\n this,\n this._map.mapEntries(function (ref) {\n var v = ref[1];\n\n var mapped = mapper.call(context, v, v, this$1$1);\n\n if (mapped !== v) {\n didChanges = true;\n }\n\n return [mapped, mapped];\n }, context)\n );\n\n return didChanges ? newMap : this;\n };\n\n Set.prototype.union = function union () {\n var iters = [], len = arguments.length;\n while ( len-- ) iters[ len ] = arguments[ len ];\n\n iters = iters.filter(function (x) { return x.size !== 0; });\n if (iters.length === 0) {\n return this;\n }\n if (this.size === 0 && !this.__ownerID && iters.length === 1) {\n return this.constructor(iters[0]);\n }\n return this.withMutations(function (set) {\n for (var ii = 0; ii < iters.length; ii++) {\n if (typeof iters[ii] === 'string') {\n set.add(iters[ii]);\n } else {\n SetCollection(iters[ii]).forEach(function (value) { return set.add(value); });\n }\n }\n });\n };\n\n Set.prototype.intersect = function intersect () {\n var iters = [], len = arguments.length;\n while ( len-- ) iters[ len ] = arguments[ len ];\n\n if (iters.length === 0) {\n return this;\n }\n iters = iters.map(function (iter) { return SetCollection(iter); });\n var toRemove = [];\n this.forEach(function (value) {\n if (!iters.every(function (iter) { return iter.includes(value); })) {\n toRemove.push(value);\n }\n });\n return this.withMutations(function (set) {\n toRemove.forEach(function (value) {\n set.remove(value);\n });\n });\n };\n\n Set.prototype.subtract = function subtract () {\n var iters = [], len = arguments.length;\n while ( len-- ) iters[ len ] = arguments[ len ];\n\n if (iters.length === 0) {\n return this;\n }\n iters = iters.map(function (iter) { return SetCollection(iter); });\n var toRemove = [];\n this.forEach(function (value) {\n if (iters.some(function (iter) { return iter.includes(value); })) {\n toRemove.push(value);\n }\n });\n return this.withMutations(function (set) {\n toRemove.forEach(function (value) {\n set.remove(value);\n });\n });\n };\n\n Set.prototype.sort = function sort (comparator) {\n // Late binding\n return OrderedSet(sortFactory(this, comparator));\n };\n\n Set.prototype.sortBy = function sortBy (mapper, comparator) {\n // Late binding\n return OrderedSet(sortFactory(this, comparator, mapper));\n };\n\n Set.prototype.wasAltered = function wasAltered () {\n return this._map.wasAltered();\n };\n\n Set.prototype.__iterate = function __iterate (fn, reverse) {\n var this$1$1 = this;\n\n return this._map.__iterate(function (k) { return fn(k, k, this$1$1); }, reverse);\n };\n\n Set.prototype.__iterator = function __iterator (type, reverse) {\n return this._map.__iterator(type, reverse);\n };\n\n Set.prototype.__ensureOwner = function __ensureOwner (ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n var newMap = this._map.__ensureOwner(ownerID);\n if (!ownerID) {\n if (this.size === 0) {\n return this.__empty();\n }\n this.__ownerID = ownerID;\n this._map = newMap;\n return this;\n }\n return this.__make(newMap, ownerID);\n };\n\n return Set;\n}(SetCollection));\n\nSet.isSet = isSet;\n\nvar SetPrototype = Set.prototype;\nSetPrototype[IS_SET_SYMBOL] = true;\nSetPrototype[DELETE] = SetPrototype.remove;\nSetPrototype.merge = SetPrototype.concat = SetPrototype.union;\nSetPrototype.withMutations = withMutations;\nSetPrototype.asImmutable = asImmutable;\nSetPrototype['@@transducer/init'] = SetPrototype.asMutable = asMutable;\nSetPrototype['@@transducer/step'] = function (result, arr) {\n return result.add(arr);\n};\nSetPrototype['@@transducer/result'] = function (obj) {\n return obj.asImmutable();\n};\n\nSetPrototype.__empty = emptySet;\nSetPrototype.__make = makeSet;\n\nfunction updateSet(set, newMap) {\n if (set.__ownerID) {\n set.size = newMap.size;\n set._map = newMap;\n return set;\n }\n return newMap === set._map\n ? set\n : newMap.size === 0\n ? set.__empty()\n : set.__make(newMap);\n}\n\nfunction makeSet(map, ownerID) {\n var set = Object.create(SetPrototype);\n set.size = map ? map.size : 0;\n set._map = map;\n set.__ownerID = ownerID;\n return set;\n}\n\nvar EMPTY_SET;\nfunction emptySet() {\n return EMPTY_SET || (EMPTY_SET = makeSet(emptyMap()));\n}\n\n/**\n * Returns a lazy seq of nums from start (inclusive) to end\n * (exclusive), by step, where start defaults to 0, step to 1, and end to\n * infinity. When start is equal to end, returns empty list.\n */\nvar Range = /*@__PURE__*/(function (IndexedSeq) {\n function Range(start, end, step) {\n if (!(this instanceof Range)) {\n // eslint-disable-next-line no-constructor-return\n return new Range(start, end, step);\n }\n invariant(step !== 0, 'Cannot step a Range by 0');\n start = start || 0;\n if (end === undefined) {\n end = Infinity;\n }\n step = step === undefined ? 1 : Math.abs(step);\n if (end < start) {\n step = -step;\n }\n this._start = start;\n this._end = end;\n this._step = step;\n this.size = Math.max(0, Math.ceil((end - start) / step - 1) + 1);\n if (this.size === 0) {\n if (EMPTY_RANGE) {\n // eslint-disable-next-line no-constructor-return\n return EMPTY_RANGE;\n }\n EMPTY_RANGE = this;\n }\n }\n\n if ( IndexedSeq ) Range.__proto__ = IndexedSeq;\n Range.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );\n Range.prototype.constructor = Range;\n\n Range.prototype.toString = function toString () {\n if (this.size === 0) {\n return 'Range []';\n }\n return (\n 'Range [ ' +\n this._start +\n '...' +\n this._end +\n (this._step !== 1 ? ' by ' + this._step : '') +\n ' ]'\n );\n };\n\n Range.prototype.get = function get (index, notSetValue) {\n return this.has(index)\n ? this._start + wrapIndex(this, index) * this._step\n : notSetValue;\n };\n\n Range.prototype.includes = function includes (searchValue) {\n var possibleIndex = (searchValue - this._start) / this._step;\n return (\n possibleIndex >= 0 &&\n possibleIndex < this.size &&\n possibleIndex === Math.floor(possibleIndex)\n );\n };\n\n Range.prototype.slice = function slice (begin, end) {\n if (wholeSlice(begin, end, this.size)) {\n return this;\n }\n begin = resolveBegin(begin, this.size);\n end = resolveEnd(end, this.size);\n if (end <= begin) {\n return new Range(0, 0);\n }\n return new Range(\n this.get(begin, this._end),\n this.get(end, this._end),\n this._step\n );\n };\n\n Range.prototype.indexOf = function indexOf (searchValue) {\n var offsetValue = searchValue - this._start;\n if (offsetValue % this._step === 0) {\n var index = offsetValue / this._step;\n if (index >= 0 && index < this.size) {\n return index;\n }\n }\n return -1;\n };\n\n Range.prototype.lastIndexOf = function lastIndexOf (searchValue) {\n return this.indexOf(searchValue);\n };\n\n Range.prototype.__iterate = function __iterate (fn, reverse) {\n var size = this.size;\n var step = this._step;\n var value = reverse ? this._start + (size - 1) * step : this._start;\n var i = 0;\n while (i !== size) {\n if (fn(value, reverse ? size - ++i : i++, this) === false) {\n break;\n }\n value += reverse ? -step : step;\n }\n return i;\n };\n\n Range.prototype.__iterator = function __iterator (type, reverse) {\n var size = this.size;\n var step = this._step;\n var value = reverse ? this._start + (size - 1) * step : this._start;\n var i = 0;\n return new Iterator(function () {\n if (i === size) {\n return iteratorDone();\n }\n var v = value;\n value += reverse ? -step : step;\n return iteratorValue(type, reverse ? size - ++i : i++, v);\n });\n };\n\n Range.prototype.equals = function equals (other) {\n return other instanceof Range\n ? this._start === other._start &&\n this._end === other._end &&\n this._step === other._step\n : deepEqual(this, other);\n };\n\n return Range;\n}(IndexedSeq));\n\nvar EMPTY_RANGE;\n\nfunction getIn$1(collection, searchKeyPath, notSetValue) {\n var keyPath = coerceKeyPath(searchKeyPath);\n var i = 0;\n while (i !== keyPath.length) {\n collection = get(collection, keyPath[i++], NOT_SET);\n if (collection === NOT_SET) {\n return notSetValue;\n }\n }\n return collection;\n}\n\nfunction getIn(searchKeyPath, notSetValue) {\n return getIn$1(this, searchKeyPath, notSetValue);\n}\n\nfunction hasIn$1(collection, keyPath) {\n return getIn$1(collection, keyPath, NOT_SET) !== NOT_SET;\n}\n\nfunction hasIn(searchKeyPath) {\n return hasIn$1(this, searchKeyPath);\n}\n\nfunction toObject() {\n assertNotInfinite(this.size);\n var object = {};\n this.__iterate(function (v, k) {\n object[k] = v;\n });\n return object;\n}\n\n// Note: all of these methods are deprecated.\nCollection.isIterable = isCollection;\nCollection.isKeyed = isKeyed;\nCollection.isIndexed = isIndexed;\nCollection.isAssociative = isAssociative;\nCollection.isOrdered = isOrdered;\n\nCollection.Iterator = Iterator;\n\nmixin(Collection, {\n // ### Conversion to other types\n\n toArray: function toArray() {\n assertNotInfinite(this.size);\n var array = new Array(this.size || 0);\n var useTuples = isKeyed(this);\n var i = 0;\n this.__iterate(function (v, k) {\n // Keyed collections produce an array of tuples.\n array[i++] = useTuples ? [k, v] : v;\n });\n return array;\n },\n\n toIndexedSeq: function toIndexedSeq() {\n return new ToIndexedSequence(this);\n },\n\n toJS: function toJS$1() {\n return toJS(this);\n },\n\n toKeyedSeq: function toKeyedSeq() {\n return new ToKeyedSequence(this, true);\n },\n\n toMap: function toMap() {\n // Use Late Binding here to solve the circular dependency.\n return Map(this.toKeyedSeq());\n },\n\n toObject: toObject,\n\n toOrderedMap: function toOrderedMap() {\n // Use Late Binding here to solve the circular dependency.\n return OrderedMap(this.toKeyedSeq());\n },\n\n toOrderedSet: function toOrderedSet() {\n // Use Late Binding here to solve the circular dependency.\n return OrderedSet(isKeyed(this) ? this.valueSeq() : this);\n },\n\n toSet: function toSet() {\n // Use Late Binding here to solve the circular dependency.\n return Set(isKeyed(this) ? this.valueSeq() : this);\n },\n\n toSetSeq: function toSetSeq() {\n return new ToSetSequence(this);\n },\n\n toSeq: function toSeq() {\n return isIndexed(this)\n ? this.toIndexedSeq()\n : isKeyed(this)\n ? this.toKeyedSeq()\n : this.toSetSeq();\n },\n\n toStack: function toStack() {\n // Use Late Binding here to solve the circular dependency.\n return Stack(isKeyed(this) ? this.valueSeq() : this);\n },\n\n toList: function toList() {\n // Use Late Binding here to solve the circular dependency.\n return List(isKeyed(this) ? this.valueSeq() : this);\n },\n\n // ### Common JavaScript methods and properties\n\n toString: function toString() {\n return '[Collection]';\n },\n\n __toString: function __toString(head, tail) {\n if (this.size === 0) {\n return head + tail;\n }\n return (\n head +\n ' ' +\n this.toSeq().map(this.__toStringMapper).join(', ') +\n ' ' +\n tail\n );\n },\n\n // ### ES6 Collection methods (ES6 Array and Map)\n\n concat: function concat() {\n var values = [], len = arguments.length;\n while ( len-- ) values[ len ] = arguments[ len ];\n\n return reify(this, concatFactory(this, values));\n },\n\n includes: function includes(searchValue) {\n return this.some(function (value) { return is(value, searchValue); });\n },\n\n entries: function entries() {\n return this.__iterator(ITERATE_ENTRIES);\n },\n\n every: function every(predicate, context) {\n assertNotInfinite(this.size);\n var returnValue = true;\n this.__iterate(function (v, k, c) {\n if (!predicate.call(context, v, k, c)) {\n returnValue = false;\n return false;\n }\n });\n return returnValue;\n },\n\n filter: function filter(predicate, context) {\n return reify(this, filterFactory(this, predicate, context, true));\n },\n\n partition: function partition(predicate, context) {\n return partitionFactory(this, predicate, context);\n },\n\n find: function find(predicate, context, notSetValue) {\n var entry = this.findEntry(predicate, context);\n return entry ? entry[1] : notSetValue;\n },\n\n forEach: function forEach(sideEffect, context) {\n assertNotInfinite(this.size);\n return this.__iterate(context ? sideEffect.bind(context) : sideEffect);\n },\n\n join: function join(separator) {\n assertNotInfinite(this.size);\n separator = separator !== undefined ? '' + separator : ',';\n var joined = '';\n var isFirst = true;\n this.__iterate(function (v) {\n isFirst ? (isFirst = false) : (joined += separator);\n joined += v !== null && v !== undefined ? v.toString() : '';\n });\n return joined;\n },\n\n keys: function keys() {\n return this.__iterator(ITERATE_KEYS);\n },\n\n map: function map(mapper, context) {\n return reify(this, mapFactory(this, mapper, context));\n },\n\n reduce: function reduce$1(reducer, initialReduction, context) {\n return reduce(\n this,\n reducer,\n initialReduction,\n context,\n arguments.length < 2,\n false\n );\n },\n\n reduceRight: function reduceRight(reducer, initialReduction, context) {\n return reduce(\n this,\n reducer,\n initialReduction,\n context,\n arguments.length < 2,\n true\n );\n },\n\n reverse: function reverse() {\n return reify(this, reverseFactory(this, true));\n },\n\n slice: function slice(begin, end) {\n return reify(this, sliceFactory(this, begin, end, true));\n },\n\n some: function some(predicate, context) {\n assertNotInfinite(this.size);\n var returnValue = false;\n this.__iterate(function (v, k, c) {\n if (predicate.call(context, v, k, c)) {\n returnValue = true;\n return false;\n }\n });\n return returnValue;\n },\n\n sort: function sort(comparator) {\n return reify(this, sortFactory(this, comparator));\n },\n\n values: function values() {\n return this.__iterator(ITERATE_VALUES);\n },\n\n // ### More sequential methods\n\n butLast: function butLast() {\n return this.slice(0, -1);\n },\n\n isEmpty: function isEmpty() {\n return this.size !== undefined ? this.size === 0 : !this.some(function () { return true; });\n },\n\n count: function count(predicate, context) {\n return ensureSize(\n predicate ? this.toSeq().filter(predicate, context) : this\n );\n },\n\n countBy: function countBy(grouper, context) {\n return countByFactory(this, grouper, context);\n },\n\n equals: function equals(other) {\n return deepEqual(this, other);\n },\n\n entrySeq: function entrySeq() {\n var collection = this;\n if (collection._cache) {\n // We cache as an entries array, so we can just return the cache!\n return new ArraySeq(collection._cache);\n }\n var entriesSequence = collection.toSeq().map(entryMapper).toIndexedSeq();\n entriesSequence.fromEntrySeq = function () { return collection.toSeq(); };\n return entriesSequence;\n },\n\n filterNot: function filterNot(predicate, context) {\n return this.filter(not(predicate), context);\n },\n\n findEntry: function findEntry(predicate, context, notSetValue) {\n var found = notSetValue;\n this.__iterate(function (v, k, c) {\n if (predicate.call(context, v, k, c)) {\n found = [k, v];\n return false;\n }\n });\n return found;\n },\n\n findKey: function findKey(predicate, context) {\n var entry = this.findEntry(predicate, context);\n return entry && entry[0];\n },\n\n findLast: function findLast(predicate, context, notSetValue) {\n return this.toKeyedSeq().reverse().find(predicate, context, notSetValue);\n },\n\n findLastEntry: function findLastEntry(predicate, context, notSetValue) {\n return this.toKeyedSeq()\n .reverse()\n .findEntry(predicate, context, notSetValue);\n },\n\n findLastKey: function findLastKey(predicate, context) {\n return this.toKeyedSeq().reverse().findKey(predicate, context);\n },\n\n first: function first(notSetValue) {\n return this.find(returnTrue, null, notSetValue);\n },\n\n flatMap: function flatMap(mapper, context) {\n return reify(this, flatMapFactory(this, mapper, context));\n },\n\n flatten: function flatten(depth) {\n return reify(this, flattenFactory(this, depth, true));\n },\n\n fromEntrySeq: function fromEntrySeq() {\n return new FromEntriesSequence(this);\n },\n\n get: function get(searchKey, notSetValue) {\n return this.find(function (_, key) { return is(key, searchKey); }, undefined, notSetValue);\n },\n\n getIn: getIn,\n\n groupBy: function groupBy(grouper, context) {\n return groupByFactory(this, grouper, context);\n },\n\n has: function has(searchKey) {\n return this.get(searchKey, NOT_SET) !== NOT_SET;\n },\n\n hasIn: hasIn,\n\n isSubset: function isSubset(iter) {\n iter = typeof iter.includes === 'function' ? iter : Collection(iter);\n return this.every(function (value) { return iter.includes(value); });\n },\n\n isSuperset: function isSuperset(iter) {\n iter = typeof iter.isSubset === 'function' ? iter : Collection(iter);\n return iter.isSubset(this);\n },\n\n keyOf: function keyOf(searchValue) {\n return this.findKey(function (value) { return is(value, searchValue); });\n },\n\n keySeq: function keySeq() {\n return this.toSeq().map(keyMapper).toIndexedSeq();\n },\n\n last: function last(notSetValue) {\n return this.toSeq().reverse().first(notSetValue);\n },\n\n lastKeyOf: function lastKeyOf(searchValue) {\n return this.toKeyedSeq().reverse().keyOf(searchValue);\n },\n\n max: function max(comparator) {\n return maxFactory(this, comparator);\n },\n\n maxBy: function maxBy(mapper, comparator) {\n return maxFactory(this, comparator, mapper);\n },\n\n min: function min(comparator) {\n return maxFactory(\n this,\n comparator ? neg(comparator) : defaultNegComparator\n );\n },\n\n minBy: function minBy(mapper, comparator) {\n return maxFactory(\n this,\n comparator ? neg(comparator) : defaultNegComparator,\n mapper\n );\n },\n\n rest: function rest() {\n return this.slice(1);\n },\n\n skip: function skip(amount) {\n return amount === 0 ? this : this.slice(Math.max(0, amount));\n },\n\n skipLast: function skipLast(amount) {\n return amount === 0 ? this : this.slice(0, -Math.max(0, amount));\n },\n\n skipWhile: function skipWhile(predicate, context) {\n return reify(this, skipWhileFactory(this, predicate, context, true));\n },\n\n skipUntil: function skipUntil(predicate, context) {\n return this.skipWhile(not(predicate), context);\n },\n\n sortBy: function sortBy(mapper, comparator) {\n return reify(this, sortFactory(this, comparator, mapper));\n },\n\n take: function take(amount) {\n return this.slice(0, Math.max(0, amount));\n },\n\n takeLast: function takeLast(amount) {\n return this.slice(-Math.max(0, amount));\n },\n\n takeWhile: function takeWhile(predicate, context) {\n return reify(this, takeWhileFactory(this, predicate, context));\n },\n\n takeUntil: function takeUntil(predicate, context) {\n return this.takeWhile(not(predicate), context);\n },\n\n update: function update(fn) {\n return fn(this);\n },\n\n valueSeq: function valueSeq() {\n return this.toIndexedSeq();\n },\n\n // ### Hashable Object\n\n hashCode: function hashCode() {\n return this.__hash || (this.__hash = hashCollection(this));\n },\n\n // ### Internal\n\n // abstract __iterate(fn, reverse)\n\n // abstract __iterator(type, reverse)\n});\n\nvar CollectionPrototype = Collection.prototype;\nCollectionPrototype[IS_COLLECTION_SYMBOL] = true;\nCollectionPrototype[ITERATOR_SYMBOL] = CollectionPrototype.values;\nCollectionPrototype.toJSON = CollectionPrototype.toArray;\nCollectionPrototype.__toStringMapper = quoteString;\nCollectionPrototype.inspect = CollectionPrototype.toSource = function () {\n return this.toString();\n};\nCollectionPrototype.chain = CollectionPrototype.flatMap;\nCollectionPrototype.contains = CollectionPrototype.includes;\n\nmixin(KeyedCollection, {\n // ### More sequential methods\n\n flip: function flip() {\n return reify(this, flipFactory(this));\n },\n\n mapEntries: function mapEntries(mapper, context) {\n var this$1$1 = this;\n\n var iterations = 0;\n return reify(\n this,\n this.toSeq()\n .map(function (v, k) { return mapper.call(context, [k, v], iterations++, this$1$1); })\n .fromEntrySeq()\n );\n },\n\n mapKeys: function mapKeys(mapper, context) {\n var this$1$1 = this;\n\n return reify(\n this,\n this.toSeq()\n .flip()\n .map(function (k, v) { return mapper.call(context, k, v, this$1$1); })\n .flip()\n );\n },\n});\n\nvar KeyedCollectionPrototype = KeyedCollection.prototype;\nKeyedCollectionPrototype[IS_KEYED_SYMBOL] = true;\nKeyedCollectionPrototype[ITERATOR_SYMBOL] = CollectionPrototype.entries;\nKeyedCollectionPrototype.toJSON = toObject;\nKeyedCollectionPrototype.__toStringMapper = function (v, k) { return quoteString(k) + ': ' + quoteString(v); };\n\nmixin(IndexedCollection, {\n // ### Conversion to other types\n\n toKeyedSeq: function toKeyedSeq() {\n return new ToKeyedSequence(this, false);\n },\n\n // ### ES6 Collection methods (ES6 Array and Map)\n\n filter: function filter(predicate, context) {\n return reify(this, filterFactory(this, predicate, context, false));\n },\n\n findIndex: function findIndex(predicate, context) {\n var entry = this.findEntry(predicate, context);\n return entry ? entry[0] : -1;\n },\n\n indexOf: function indexOf(searchValue) {\n var key = this.keyOf(searchValue);\n return key === undefined ? -1 : key;\n },\n\n lastIndexOf: function lastIndexOf(searchValue) {\n var key = this.lastKeyOf(searchValue);\n return key === undefined ? -1 : key;\n },\n\n reverse: function reverse() {\n return reify(this, reverseFactory(this, false));\n },\n\n slice: function slice(begin, end) {\n return reify(this, sliceFactory(this, begin, end, false));\n },\n\n splice: function splice(index, removeNum /*, ...values*/) {\n var numArgs = arguments.length;\n removeNum = Math.max(removeNum || 0, 0);\n if (numArgs === 0 || (numArgs === 2 && !removeNum)) {\n return this;\n }\n // If index is negative, it should resolve relative to the size of the\n // collection. However size may be expensive to compute if not cached, so\n // only call count() if the number is in fact negative.\n index = resolveBegin(index, index < 0 ? this.count() : this.size);\n var spliced = this.slice(0, index);\n return reify(\n this,\n numArgs === 1\n ? spliced\n : spliced.concat(arrCopy(arguments, 2), this.slice(index + removeNum))\n );\n },\n\n // ### More collection methods\n\n findLastIndex: function findLastIndex(predicate, context) {\n var entry = this.findLastEntry(predicate, context);\n return entry ? entry[0] : -1;\n },\n\n first: function first(notSetValue) {\n return this.get(0, notSetValue);\n },\n\n flatten: function flatten(depth) {\n return reify(this, flattenFactory(this, depth, false));\n },\n\n get: function get(index, notSetValue) {\n index = wrapIndex(this, index);\n return index < 0 ||\n this.size === Infinity ||\n (this.size !== undefined && index > this.size)\n ? notSetValue\n : this.find(function (_, key) { return key === index; }, undefined, notSetValue);\n },\n\n has: function has(index) {\n index = wrapIndex(this, index);\n return (\n index >= 0 &&\n (this.size !== undefined\n ? this.size === Infinity || index < this.size\n : this.indexOf(index) !== -1)\n );\n },\n\n interpose: function interpose(separator) {\n return reify(this, interposeFactory(this, separator));\n },\n\n interleave: function interleave(/*...collections*/) {\n var collections = [this].concat(arrCopy(arguments));\n var zipped = zipWithFactory(this.toSeq(), IndexedSeq.of, collections);\n var interleaved = zipped.flatten(true);\n if (zipped.size) {\n interleaved.size = zipped.size * collections.length;\n }\n return reify(this, interleaved);\n },\n\n keySeq: function keySeq() {\n return Range(0, this.size);\n },\n\n last: function last(notSetValue) {\n return this.get(-1, notSetValue);\n },\n\n skipWhile: function skipWhile(predicate, context) {\n return reify(this, skipWhileFactory(this, predicate, context, false));\n },\n\n zip: function zip(/*, ...collections */) {\n var collections = [this].concat(arrCopy(arguments));\n return reify(this, zipWithFactory(this, defaultZipper, collections));\n },\n\n zipAll: function zipAll(/*, ...collections */) {\n var collections = [this].concat(arrCopy(arguments));\n return reify(this, zipWithFactory(this, defaultZipper, collections, true));\n },\n\n zipWith: function zipWith(zipper /*, ...collections */) {\n var collections = arrCopy(arguments);\n collections[0] = this;\n return reify(this, zipWithFactory(this, zipper, collections));\n },\n});\n\nvar IndexedCollectionPrototype = IndexedCollection.prototype;\nIndexedCollectionPrototype[IS_INDEXED_SYMBOL] = true;\nIndexedCollectionPrototype[IS_ORDERED_SYMBOL] = true;\n\nmixin(SetCollection, {\n // ### ES6 Collection methods (ES6 Array and Map)\n\n get: function get(value, notSetValue) {\n return this.has(value) ? value : notSetValue;\n },\n\n includes: function includes(value) {\n return this.has(value);\n },\n\n // ### More sequential methods\n\n keySeq: function keySeq() {\n return this.valueSeq();\n },\n});\n\nvar SetCollectionPrototype = SetCollection.prototype;\nSetCollectionPrototype.has = CollectionPrototype.includes;\nSetCollectionPrototype.contains = SetCollectionPrototype.includes;\nSetCollectionPrototype.keys = SetCollectionPrototype.values;\n\n// Mixin subclasses\n\nmixin(KeyedSeq, KeyedCollectionPrototype);\nmixin(IndexedSeq, IndexedCollectionPrototype);\nmixin(SetSeq, SetCollectionPrototype);\n\n// #pragma Helper functions\n\nfunction reduce(collection, reducer, reduction, context, useFirst, reverse) {\n assertNotInfinite(collection.size);\n collection.__iterate(function (v, k, c) {\n if (useFirst) {\n useFirst = false;\n reduction = v;\n } else {\n reduction = reducer.call(context, reduction, v, k, c);\n }\n }, reverse);\n return reduction;\n}\n\nfunction keyMapper(v, k) {\n return k;\n}\n\nfunction entryMapper(v, k) {\n return [k, v];\n}\n\nfunction not(predicate) {\n return function () {\n return !predicate.apply(this, arguments);\n };\n}\n\nfunction neg(predicate) {\n return function () {\n return -predicate.apply(this, arguments);\n };\n}\n\nfunction defaultZipper() {\n return arrCopy(arguments);\n}\n\nfunction defaultNegComparator(a, b) {\n return a < b ? 1 : a > b ? -1 : 0;\n}\n\nfunction hashCollection(collection) {\n if (collection.size === Infinity) {\n return 0;\n }\n var ordered = isOrdered(collection);\n var keyed = isKeyed(collection);\n var h = ordered ? 1 : 0;\n var size = collection.__iterate(\n keyed\n ? ordered\n ? function (v, k) {\n h = (31 * h + hashMerge(hash(v), hash(k))) | 0;\n }\n : function (v, k) {\n h = (h + hashMerge(hash(v), hash(k))) | 0;\n }\n : ordered\n ? function (v) {\n h = (31 * h + hash(v)) | 0;\n }\n : function (v) {\n h = (h + hash(v)) | 0;\n }\n );\n return murmurHashOfSize(size, h);\n}\n\nfunction murmurHashOfSize(size, h) {\n h = imul(h, 0xcc9e2d51);\n h = imul((h << 15) | (h >>> -15), 0x1b873593);\n h = imul((h << 13) | (h >>> -13), 5);\n h = ((h + 0xe6546b64) | 0) ^ size;\n h = imul(h ^ (h >>> 16), 0x85ebca6b);\n h = imul(h ^ (h >>> 13), 0xc2b2ae35);\n h = smi(h ^ (h >>> 16));\n return h;\n}\n\nfunction hashMerge(a, b) {\n return (a ^ (b + 0x9e3779b9 + (a << 6) + (a >> 2))) | 0; // int\n}\n\nvar OrderedSet = /*@__PURE__*/(function (Set) {\n function OrderedSet(value) {\n // eslint-disable-next-line no-constructor-return\n return value === undefined || value === null\n ? emptyOrderedSet()\n : isOrderedSet(value)\n ? value\n : emptyOrderedSet().withMutations(function (set) {\n var iter = SetCollection(value);\n assertNotInfinite(iter.size);\n iter.forEach(function (v) { return set.add(v); });\n });\n }\n\n if ( Set ) OrderedSet.__proto__ = Set;\n OrderedSet.prototype = Object.create( Set && Set.prototype );\n OrderedSet.prototype.constructor = OrderedSet;\n\n OrderedSet.of = function of (/*...values*/) {\n return this(arguments);\n };\n\n OrderedSet.fromKeys = function fromKeys (value) {\n return this(KeyedCollection(value).keySeq());\n };\n\n OrderedSet.prototype.toString = function toString () {\n return this.__toString('OrderedSet {', '}');\n };\n\n return OrderedSet;\n}(Set));\n\nOrderedSet.isOrderedSet = isOrderedSet;\n\nvar OrderedSetPrototype = OrderedSet.prototype;\nOrderedSetPrototype[IS_ORDERED_SYMBOL] = true;\nOrderedSetPrototype.zip = IndexedCollectionPrototype.zip;\nOrderedSetPrototype.zipWith = IndexedCollectionPrototype.zipWith;\nOrderedSetPrototype.zipAll = IndexedCollectionPrototype.zipAll;\n\nOrderedSetPrototype.__empty = emptyOrderedSet;\nOrderedSetPrototype.__make = makeOrderedSet;\n\nfunction makeOrderedSet(map, ownerID) {\n var set = Object.create(OrderedSetPrototype);\n set.size = map ? map.size : 0;\n set._map = map;\n set.__ownerID = ownerID;\n return set;\n}\n\nvar EMPTY_ORDERED_SET;\nfunction emptyOrderedSet() {\n return (\n EMPTY_ORDERED_SET || (EMPTY_ORDERED_SET = makeOrderedSet(emptyOrderedMap()))\n );\n}\n\nvar PairSorting = {\n LeftThenRight: -1,\n RightThenLeft: +1,\n};\n\nfunction throwOnInvalidDefaultValues(defaultValues) {\n if (isRecord(defaultValues)) {\n throw new Error(\n 'Can not call `Record` with an immutable Record as default values. Use a plain javascript object instead.'\n );\n }\n\n if (isImmutable(defaultValues)) {\n throw new Error(\n 'Can not call `Record` with an immutable Collection as default values. Use a plain javascript object instead.'\n );\n }\n\n if (defaultValues === null || typeof defaultValues !== 'object') {\n throw new Error(\n 'Can not call `Record` with a non-object as default values. Use a plain javascript object instead.'\n );\n }\n}\n\nvar Record = function Record(defaultValues, name) {\n var hasInitialized;\n\n throwOnInvalidDefaultValues(defaultValues);\n\n var RecordType = function Record(values) {\n var this$1$1 = this;\n\n if (values instanceof RecordType) {\n return values;\n }\n if (!(this instanceof RecordType)) {\n return new RecordType(values);\n }\n if (!hasInitialized) {\n hasInitialized = true;\n var keys = Object.keys(defaultValues);\n var indices = (RecordTypePrototype._indices = {});\n // Deprecated: left to attempt not to break any external code which\n // relies on a ._name property existing on record instances.\n // Use Record.getDescriptiveName() instead\n RecordTypePrototype._name = name;\n RecordTypePrototype._keys = keys;\n RecordTypePrototype._defaultValues = defaultValues;\n for (var i = 0; i < keys.length; i++) {\n var propName = keys[i];\n indices[propName] = i;\n if (RecordTypePrototype[propName]) {\n /* eslint-disable no-console */\n typeof console === 'object' &&\n console.warn &&\n console.warn(\n 'Cannot define ' +\n recordName(this) +\n ' with property \"' +\n propName +\n '\" since that property name is part of the Record API.'\n );\n /* eslint-enable no-console */\n } else {\n setProp(RecordTypePrototype, propName);\n }\n }\n }\n this.__ownerID = undefined;\n this._values = List().withMutations(function (l) {\n l.setSize(this$1$1._keys.length);\n KeyedCollection(values).forEach(function (v, k) {\n l.set(this$1$1._indices[k], v === this$1$1._defaultValues[k] ? undefined : v);\n });\n });\n return this;\n };\n\n var RecordTypePrototype = (RecordType.prototype =\n Object.create(RecordPrototype));\n RecordTypePrototype.constructor = RecordType;\n\n if (name) {\n RecordType.displayName = name;\n }\n\n // eslint-disable-next-line no-constructor-return\n return RecordType;\n};\n\nRecord.prototype.toString = function toString () {\n var str = recordName(this) + ' { ';\n var keys = this._keys;\n var k;\n for (var i = 0, l = keys.length; i !== l; i++) {\n k = keys[i];\n str += (i ? ', ' : '') + k + ': ' + quoteString(this.get(k));\n }\n return str + ' }';\n};\n\nRecord.prototype.equals = function equals (other) {\n return (\n this === other ||\n (isRecord(other) && recordSeq(this).equals(recordSeq(other)))\n );\n};\n\nRecord.prototype.hashCode = function hashCode () {\n return recordSeq(this).hashCode();\n};\n\n// @pragma Access\n\nRecord.prototype.has = function has (k) {\n return this._indices.hasOwnProperty(k);\n};\n\nRecord.prototype.get = function get (k, notSetValue) {\n if (!this.has(k)) {\n return notSetValue;\n }\n var index = this._indices[k];\n var value = this._values.get(index);\n return value === undefined ? this._defaultValues[k] : value;\n};\n\n// @pragma Modification\n\nRecord.prototype.set = function set (k, v) {\n if (this.has(k)) {\n var newValues = this._values.set(\n this._indices[k],\n v === this._defaultValues[k] ? undefined : v\n );\n if (newValues !== this._values && !this.__ownerID) {\n return makeRecord(this, newValues);\n }\n }\n return this;\n};\n\nRecord.prototype.remove = function remove (k) {\n return this.set(k);\n};\n\nRecord.prototype.clear = function clear () {\n var newValues = this._values.clear().setSize(this._keys.length);\n\n return this.__ownerID ? this : makeRecord(this, newValues);\n};\n\nRecord.prototype.wasAltered = function wasAltered () {\n return this._values.wasAltered();\n};\n\nRecord.prototype.toSeq = function toSeq () {\n return recordSeq(this);\n};\n\nRecord.prototype.toJS = function toJS$1 () {\n return toJS(this);\n};\n\nRecord.prototype.entries = function entries () {\n return this.__iterator(ITERATE_ENTRIES);\n};\n\nRecord.prototype.__iterator = function __iterator (type, reverse) {\n return recordSeq(this).__iterator(type, reverse);\n};\n\nRecord.prototype.__iterate = function __iterate (fn, reverse) {\n return recordSeq(this).__iterate(fn, reverse);\n};\n\nRecord.prototype.__ensureOwner = function __ensureOwner (ownerID) {\n if (ownerID === this.__ownerID) {\n return this;\n }\n var newValues = this._values.__ensureOwner(ownerID);\n if (!ownerID) {\n this.__ownerID = ownerID;\n this._values = newValues;\n return this;\n }\n return makeRecord(this, newValues, ownerID);\n};\n\nRecord.isRecord = isRecord;\nRecord.getDescriptiveName = recordName;\nvar RecordPrototype = Record.prototype;\nRecordPrototype[IS_RECORD_SYMBOL] = true;\nRecordPrototype[DELETE] = RecordPrototype.remove;\nRecordPrototype.deleteIn = RecordPrototype.removeIn = deleteIn;\nRecordPrototype.getIn = getIn;\nRecordPrototype.hasIn = CollectionPrototype.hasIn;\nRecordPrototype.merge = merge$1;\nRecordPrototype.mergeWith = mergeWith$1;\nRecordPrototype.mergeIn = mergeIn;\nRecordPrototype.mergeDeep = mergeDeep;\nRecordPrototype.mergeDeepWith = mergeDeepWith;\nRecordPrototype.mergeDeepIn = mergeDeepIn;\nRecordPrototype.setIn = setIn;\nRecordPrototype.update = update;\nRecordPrototype.updateIn = updateIn;\nRecordPrototype.withMutations = withMutations;\nRecordPrototype.asMutable = asMutable;\nRecordPrototype.asImmutable = asImmutable;\nRecordPrototype[ITERATOR_SYMBOL] = RecordPrototype.entries;\nRecordPrototype.toJSON = RecordPrototype.toObject =\n CollectionPrototype.toObject;\nRecordPrototype.inspect = RecordPrototype.toSource = function () {\n return this.toString();\n};\n\nfunction makeRecord(likeRecord, values, ownerID) {\n var record = Object.create(Object.getPrototypeOf(likeRecord));\n record._values = values;\n record.__ownerID = ownerID;\n return record;\n}\n\nfunction recordName(record) {\n return record.constructor.displayName || record.constructor.name || 'Record';\n}\n\nfunction recordSeq(record) {\n return keyedSeqFromValue(record._keys.map(function (k) { return [k, record.get(k)]; }));\n}\n\nfunction setProp(prototype, name) {\n try {\n Object.defineProperty(prototype, name, {\n get: function () {\n return this.get(name);\n },\n set: function (value) {\n invariant(this.__ownerID, 'Cannot set on an immutable record.');\n this.set(name, value);\n },\n });\n } catch (error) {\n // Object.defineProperty failed. Probably IE8.\n }\n}\n\n/**\n * Returns a lazy Seq of `value` repeated `times` times. When `times` is\n * undefined, returns an infinite sequence of `value`.\n */\nvar Repeat = /*@__PURE__*/(function (IndexedSeq) {\n function Repeat(value, times) {\n if (!(this instanceof Repeat)) {\n // eslint-disable-next-line no-constructor-return\n return new Repeat(value, times);\n }\n this._value = value;\n this.size = times === undefined ? Infinity : Math.max(0, times);\n if (this.size === 0) {\n if (EMPTY_REPEAT) {\n // eslint-disable-next-line no-constructor-return\n return EMPTY_REPEAT;\n }\n EMPTY_REPEAT = this;\n }\n }\n\n if ( IndexedSeq ) Repeat.__proto__ = IndexedSeq;\n Repeat.prototype = Object.create( IndexedSeq && IndexedSeq.prototype );\n Repeat.prototype.constructor = Repeat;\n\n Repeat.prototype.toString = function toString () {\n if (this.size === 0) {\n return 'Repeat []';\n }\n return 'Repeat [ ' + this._value + ' ' + this.size + ' times ]';\n };\n\n Repeat.prototype.get = function get (index, notSetValue) {\n return this.has(index) ? this._value : notSetValue;\n };\n\n Repeat.prototype.includes = function includes (searchValue) {\n return is(this._value, searchValue);\n };\n\n Repeat.prototype.slice = function slice (begin, end) {\n var size = this.size;\n return wholeSlice(begin, end, size)\n ? this\n : new Repeat(\n this._value,\n resolveEnd(end, size) - resolveBegin(begin, size)\n );\n };\n\n Repeat.prototype.reverse = function reverse () {\n return this;\n };\n\n Repeat.prototype.indexOf = function indexOf (searchValue) {\n if (is(this._value, searchValue)) {\n return 0;\n }\n return -1;\n };\n\n Repeat.prototype.lastIndexOf = function lastIndexOf (searchValue) {\n if (is(this._value, searchValue)) {\n return this.size;\n }\n return -1;\n };\n\n Repeat.prototype.__iterate = function __iterate (fn, reverse) {\n var size = this.size;\n var i = 0;\n while (i !== size) {\n if (fn(this._value, reverse ? size - ++i : i++, this) === false) {\n break;\n }\n }\n return i;\n };\n\n Repeat.prototype.__iterator = function __iterator (type, reverse) {\n var this$1$1 = this;\n\n var size = this.size;\n var i = 0;\n return new Iterator(function () { return i === size\n ? iteratorDone()\n : iteratorValue(type, reverse ? size - ++i : i++, this$1$1._value); }\n );\n };\n\n Repeat.prototype.equals = function equals (other) {\n return other instanceof Repeat\n ? is(this._value, other._value)\n : deepEqual(this, other);\n };\n\n return Repeat;\n}(IndexedSeq));\n\nvar EMPTY_REPEAT;\n\nfunction fromJS(value, converter) {\n return fromJSWith(\n [],\n converter || defaultConverter,\n value,\n '',\n converter && converter.length > 2 ? [] : undefined,\n { '': value }\n );\n}\n\nfunction fromJSWith(stack, converter, value, key, keyPath, parentValue) {\n if (\n typeof value !== 'string' &&\n !isImmutable(value) &&\n (isArrayLike(value) || hasIterator(value) || isPlainObject(value))\n ) {\n if (~stack.indexOf(value)) {\n throw new TypeError('Cannot convert circular structure to Immutable');\n }\n stack.push(value);\n keyPath && key !== '' && keyPath.push(key);\n var converted = converter.call(\n parentValue,\n key,\n Seq(value).map(function (v, k) { return fromJSWith(stack, converter, v, k, keyPath, value); }\n ),\n keyPath && keyPath.slice()\n );\n stack.pop();\n keyPath && keyPath.pop();\n return converted;\n }\n return value;\n}\n\nfunction defaultConverter(k, v) {\n // Effectively the opposite of \"Collection.toSeq()\"\n return isIndexed(v) ? v.toList() : isKeyed(v) ? v.toMap() : v.toSet();\n}\n\nvar version = \"4.3.6\";\n\nvar Immutable = {\n version: version,\n\n Collection: Collection,\n // Note: Iterable is deprecated\n Iterable: Collection,\n\n Seq: Seq,\n Map: Map,\n OrderedMap: OrderedMap,\n List: List,\n Stack: Stack,\n Set: Set,\n OrderedSet: OrderedSet,\n PairSorting: PairSorting,\n\n Record: Record,\n Range: Range,\n Repeat: Repeat,\n\n is: is,\n fromJS: fromJS,\n hash: hash,\n\n isImmutable: isImmutable,\n isCollection: isCollection,\n isKeyed: isKeyed,\n isIndexed: isIndexed,\n isAssociative: isAssociative,\n isOrdered: isOrdered,\n isValueObject: isValueObject,\n isPlainObject: isPlainObject,\n isSeq: isSeq,\n isList: isList,\n isMap: isMap,\n isOrderedMap: isOrderedMap,\n isStack: isStack,\n isSet: isSet,\n isOrderedSet: isOrderedSet,\n isRecord: isRecord,\n\n get: get,\n getIn: getIn$1,\n has: has,\n hasIn: hasIn$1,\n merge: merge,\n mergeDeep: mergeDeep$1,\n mergeWith: mergeWith,\n mergeDeepWith: mergeDeepWith$1,\n remove: remove,\n removeIn: removeIn,\n set: set,\n setIn: setIn$1,\n update: update$1,\n updateIn: updateIn$1,\n};\n\n// Note: Iterable is deprecated\nvar Iterable = Collection;\n\nexport default Immutable;\nexport { Collection, Iterable, List, Map, OrderedMap, OrderedSet, PairSorting, Range, Record, Repeat, Seq, Set, Stack, fromJS, get, getIn$1 as getIn, has, hasIn$1 as hasIn, hash, is, isAssociative, isCollection, isImmutable, isIndexed, isKeyed, isList, isMap, isOrdered, isOrderedMap, isOrderedSet, isPlainObject, isRecord, isSeq, isSet, isStack, isValueObject, merge, mergeDeep$1 as mergeDeep, mergeDeepWith$1 as mergeDeepWith, mergeWith, remove, removeIn, set, setIn$1 as setIn, update$1 as update, updateIn$1 as updateIn, version };\n","/**\n * Copyright (c) 2013-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n\n'use strict';\n\n/**\n * Use invariant() to assert state which your program assumes to be true.\n *\n * Provide sprintf-style format (only %s is supported) and arguments\n * to provide information about what broke and what you were\n * expecting.\n *\n * The invariant message will be stripped in production, but the invariant\n * will remain to ensure logic does not differ in production.\n */\n\nvar invariant = function(condition, format, a, b, c, d, e, f) {\n if (process.env.NODE_ENV !== 'production') {\n if (format === undefined) {\n throw new Error('invariant requires an error message argument');\n }\n }\n\n if (!condition) {\n var error;\n if (format === undefined) {\n error = new Error(\n 'Minified exception occurred; use the non-minified dev environment ' +\n 'for the full error message and additional helpful warnings.'\n );\n } else {\n var args = [a, b, c, d, e, f];\n var argIndex = 0;\n error = new Error(\n format.replace(/%s/g, function() { return args[argIndex++]; })\n );\n error.name = 'Invariant Violation';\n }\n\n error.framesToPop = 1; // we don't care about invariant's own frame\n throw error;\n }\n};\n\nmodule.exports = invariant;\n","/**\n * lodash (Custom Build) \n * Build: `lodash modularize exports=\"npm\" -o ./`\n * Copyright jQuery Foundation and other contributors \n * Released under MIT license \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n\n/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]';\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\nfunction apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n}\n\n/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n}\n\n/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n}\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objectToString = objectProto.toString;\n\n/** Built-in value references. */\nvar propertyIsEnumerable = objectProto.propertyIsEnumerable;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = overArg(Object.keys, Object),\n nativeMax = Math.max;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n // Safari 8.1 makes `arguments.callee` enumerable in strict mode.\n // Safari 9 makes `arguments.length` enumerable in strict mode.\n var result = (isArray(value) || isArguments(value))\n ? baseTimes(value.length, String)\n : [];\n\n var length = result.length,\n skipIndexes = !!length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (key == 'length' || isIndex(key, length)))) {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n object[key] = value;\n }\n}\n\n/**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\nfunction baseRest(func, start) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = array;\n return apply(func, this, otherArgs);\n };\n}\n\n/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\nfunction copyObject(source, props, object, customizer) {\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n assignValue(object, key, newValue === undefined ? source[key] : newValue);\n }\n return object;\n}\n\n/**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n}\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n length = length == null ? MAX_SAFE_INTEGER : length;\n return !!length &&\n (typeof value == 'number' || reIsUint.test(value)) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\n/**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n}\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n}\n\n/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n return value === other || (value !== value && other !== other);\n}\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nfunction isArguments(value) {\n // Safari 8.1 makes `arguments.callee` enumerable in strict mode.\n return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&\n (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);\n}\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n}\n\n/**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\nfunction isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n}\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 8-9 which returns 'object' for typed array and other constructors.\n var tag = isObject(value) ? objectToString.call(value) : '';\n return tag == funcTag || tag == genTag;\n}\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\n/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\n/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\n/**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\nvar assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n});\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\nmodule.exports = assignWith;\n","/**\n * lodash (Custom Build) \n * Build: `lodash modularize exports=\"npm\" -o ./`\n * Copyright jQuery Foundation and other contributors \n * Released under MIT license \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to match `RegExp` flags from their coerced string values. */\nvar reFlags = /\\w*$/;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/** Used to identify `toStringTag` values supported by `_.clone`. */\nvar cloneableTags = {};\ncloneableTags[argsTag] = cloneableTags[arrayTag] =\ncloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\ncloneableTags[boolTag] = cloneableTags[dateTag] =\ncloneableTags[float32Tag] = cloneableTags[float64Tag] =\ncloneableTags[int8Tag] = cloneableTags[int16Tag] =\ncloneableTags[int32Tag] = cloneableTags[mapTag] =\ncloneableTags[numberTag] = cloneableTags[objectTag] =\ncloneableTags[regexpTag] = cloneableTags[setTag] =\ncloneableTags[stringTag] = cloneableTags[symbolTag] =\ncloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\ncloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\ncloneableTags[errorTag] = cloneableTags[funcTag] =\ncloneableTags[weakMapTag] = false;\n\n/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/**\n * Adds the key-value `pair` to `map`.\n *\n * @private\n * @param {Object} map The map to modify.\n * @param {Array} pair The key-value pair to add.\n * @returns {Object} Returns `map`.\n */\nfunction addMapEntry(map, pair) {\n // Don't return `map.set` because it's not chainable in IE 11.\n map.set(pair[0], pair[1]);\n return map;\n}\n\n/**\n * Adds `value` to `set`.\n *\n * @private\n * @param {Object} set The set to modify.\n * @param {*} value The value to add.\n * @returns {Object} Returns `set`.\n */\nfunction addSetEntry(set, value) {\n // Don't return `set.add` because it's not chainable in IE 11.\n set.add(value);\n return set;\n}\n\n/**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\nfunction arrayEach(array, iteratee) {\n var index = -1,\n length = array ? array.length : 0;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n}\n\n/**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\nfunction arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n}\n\n/**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\nfunction arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array ? array.length : 0;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n}\n\n/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n}\n\n/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n return object == null ? undefined : object[key];\n}\n\n/**\n * Checks if `value` is a host object in IE < 9.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a host object, else `false`.\n */\nfunction isHostObject(value) {\n // Many host objects are `Object` objects that can coerce to strings\n // despite having improperly defined `toString` methods.\n var result = false;\n if (value != null && typeof value.toString != 'function') {\n try {\n result = !!(value + '');\n } catch (e) {}\n }\n return result;\n}\n\n/**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\nfunction mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n}\n\n/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n}\n\n/**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\nfunction setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n}\n\n/** Used for built-in method references. */\nvar arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objectToString = objectProto.toString;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined,\n Symbol = root.Symbol,\n Uint8Array = root.Uint8Array,\n getPrototype = overArg(Object.getPrototypeOf, Object),\n objectCreate = Object.create,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols,\n nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeKeys = overArg(Object.keys, Object);\n\n/* Built-in method references that are verified to be native. */\nvar DataView = getNative(root, 'DataView'),\n Map = getNative(root, 'Map'),\n Promise = getNative(root, 'Promise'),\n Set = getNative(root, 'Set'),\n WeakMap = getNative(root, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n/** Used to detect maps, sets, and weakmaps. */\nvar dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Hash(entries) {\n var index = -1,\n length = entries ? entries.length : 0;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\nfunction hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n}\n\n/**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction hashDelete(key) {\n return this.has(key) && delete this.__data__[key];\n}\n\n/**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n}\n\n/**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);\n}\n\n/**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\nfunction hashSet(key, value) {\n var data = this.__data__;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n}\n\n// Add methods to `Hash`.\nHash.prototype.clear = hashClear;\nHash.prototype['delete'] = hashDelete;\nHash.prototype.get = hashGet;\nHash.prototype.has = hashHas;\nHash.prototype.set = hashSet;\n\n/**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction ListCache(entries) {\n var index = -1,\n length = entries ? entries.length : 0;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\nfunction listCacheClear() {\n this.__data__ = [];\n}\n\n/**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n return true;\n}\n\n/**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n}\n\n/**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n}\n\n/**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\nfunction listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n}\n\n// Add methods to `ListCache`.\nListCache.prototype.clear = listCacheClear;\nListCache.prototype['delete'] = listCacheDelete;\nListCache.prototype.get = listCacheGet;\nListCache.prototype.has = listCacheHas;\nListCache.prototype.set = listCacheSet;\n\n/**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction MapCache(entries) {\n var index = -1,\n length = entries ? entries.length : 0;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\nfunction mapCacheClear() {\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n}\n\n/**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction mapCacheDelete(key) {\n return getMapData(this, key)['delete'](key);\n}\n\n/**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction mapCacheGet(key) {\n return getMapData(this, key).get(key);\n}\n\n/**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction mapCacheHas(key) {\n return getMapData(this, key).has(key);\n}\n\n/**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\nfunction mapCacheSet(key, value) {\n getMapData(this, key).set(key, value);\n return this;\n}\n\n// Add methods to `MapCache`.\nMapCache.prototype.clear = mapCacheClear;\nMapCache.prototype['delete'] = mapCacheDelete;\nMapCache.prototype.get = mapCacheGet;\nMapCache.prototype.has = mapCacheHas;\nMapCache.prototype.set = mapCacheSet;\n\n/**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Stack(entries) {\n this.__data__ = new ListCache(entries);\n}\n\n/**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\nfunction stackClear() {\n this.__data__ = new ListCache;\n}\n\n/**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction stackDelete(key) {\n return this.__data__['delete'](key);\n}\n\n/**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction stackGet(key) {\n return this.__data__.get(key);\n}\n\n/**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction stackHas(key) {\n return this.__data__.has(key);\n}\n\n/**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\nfunction stackSet(key, value) {\n var cache = this.__data__;\n if (cache instanceof ListCache) {\n var pairs = cache.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n return this;\n }\n cache = this.__data__ = new MapCache(pairs);\n }\n cache.set(key, value);\n return this;\n}\n\n// Add methods to `Stack`.\nStack.prototype.clear = stackClear;\nStack.prototype['delete'] = stackDelete;\nStack.prototype.get = stackGet;\nStack.prototype.has = stackHas;\nStack.prototype.set = stackSet;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n // Safari 8.1 makes `arguments.callee` enumerable in strict mode.\n // Safari 9 makes `arguments.length` enumerable in strict mode.\n var result = (isArray(value) || isArguments(value))\n ? baseTimes(value.length, String)\n : [];\n\n var length = result.length,\n skipIndexes = !!length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (key == 'length' || isIndex(key, length)))) {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n object[key] = value;\n }\n}\n\n/**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n}\n\n/**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\nfunction baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n}\n\n/**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @param {boolean} [isFull] Specify a clone including symbols.\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\nfunction baseClone(value, isDeep, isFull, customizer, key, object, stack) {\n var result;\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n if (isHostObject(value)) {\n return object ? value : {};\n }\n result = initCloneObject(isFunc ? {} : value);\n if (!isDeep) {\n return copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, baseClone, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (!isArr) {\n var props = isFull ? getAllKeys(value) : keys(value);\n }\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, isDeep, isFull, customizer, key, value, stack));\n });\n return result;\n}\n\n/**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} prototype The object to inherit from.\n * @returns {Object} Returns the new object.\n */\nfunction baseCreate(proto) {\n return isObject(proto) ? objectCreate(proto) : {};\n}\n\n/**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n}\n\n/**\n * The base implementation of `getTag`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n return objectToString.call(value);\n}\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\nfunction baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n}\n\n/**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\nfunction cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var result = new buffer.constructor(buffer.length);\n buffer.copy(result);\n return result;\n}\n\n/**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\nfunction cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n}\n\n/**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\nfunction cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n}\n\n/**\n * Creates a clone of `map`.\n *\n * @private\n * @param {Object} map The map to clone.\n * @param {Function} cloneFunc The function to clone values.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned map.\n */\nfunction cloneMap(map, isDeep, cloneFunc) {\n var array = isDeep ? cloneFunc(mapToArray(map), true) : mapToArray(map);\n return arrayReduce(array, addMapEntry, new map.constructor);\n}\n\n/**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\nfunction cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n}\n\n/**\n * Creates a clone of `set`.\n *\n * @private\n * @param {Object} set The set to clone.\n * @param {Function} cloneFunc The function to clone values.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned set.\n */\nfunction cloneSet(set, isDeep, cloneFunc) {\n var array = isDeep ? cloneFunc(setToArray(set), true) : setToArray(set);\n return arrayReduce(array, addSetEntry, new set.constructor);\n}\n\n/**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\nfunction cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n}\n\n/**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\nfunction cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n}\n\n/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n}\n\n/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\nfunction copyObject(source, props, object, customizer) {\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n assignValue(object, key, newValue === undefined ? source[key] : newValue);\n }\n return object;\n}\n\n/**\n * Copies own symbol properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\nfunction copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n}\n\n/**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n}\n\n/**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\nfunction getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n}\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n}\n\n/**\n * Creates an array of the own enumerable symbol properties of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbols = nativeGetSymbols ? overArg(nativeGetSymbols, Object) : stubArray;\n\n/**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nvar getTag = baseGetTag;\n\n// Fallback for data views, maps, sets, and weak maps in IE 11,\n// for data views in Edge < 14, and promises in Node.js.\nif ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = objectToString.call(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : undefined;\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n}\n\n/**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\nfunction initCloneArray(array) {\n var length = array.length,\n result = array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n}\n\n/**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n}\n\n/**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {Function} cloneFunc The function to clone values.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneByTag(object, tag, cloneFunc, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return cloneMap(object, isDeep, cloneFunc);\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return cloneSet(object, isDeep, cloneFunc);\n\n case symbolTag:\n return cloneSymbol(object);\n }\n}\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n length = length == null ? MAX_SAFE_INTEGER : length;\n return !!length &&\n (typeof value == 'number' || reIsUint.test(value)) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\n/**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\nfunction isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n}\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n}\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n}\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to process.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n}\n\n/**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\nfunction cloneDeep(value) {\n return baseClone(value, true, true);\n}\n\n/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n return value === other || (value !== value && other !== other);\n}\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nfunction isArguments(value) {\n // Safari 8.1 makes `arguments.callee` enumerable in strict mode.\n return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&\n (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);\n}\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n}\n\n/**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\nfunction isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n}\n\n/**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\nvar isBuffer = nativeIsBuffer || stubFalse;\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 8-9 which returns 'object' for typed array and other constructors.\n var tag = isObject(value) ? objectToString.call(value) : '';\n return tag == funcTag || tag == genTag;\n}\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\n/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\n/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\n/**\n * This method returns a new empty array.\n *\n * @static\n * @memberOf _\n * @since 4.13.0\n * @category Util\n * @returns {Array} Returns the new empty array.\n * @example\n *\n * var arrays = _.times(2, _.stubArray);\n *\n * console.log(arrays);\n * // => [[], []]\n *\n * console.log(arrays[0] === arrays[1]);\n * // => false\n */\nfunction stubArray() {\n return [];\n}\n\n/**\n * This method returns `false`.\n *\n * @static\n * @memberOf _\n * @since 4.13.0\n * @category Util\n * @returns {boolean} Returns `false`.\n * @example\n *\n * _.times(2, _.stubFalse);\n * // => [false, false]\n */\nfunction stubFalse() {\n return false;\n}\n\nmodule.exports = cloneDeep;\n","/**\n * lodash (Custom Build) \n * Build: `lodash modularize exports=\"npm\" -o ./`\n * Copyright jQuery Foundation and other contributors \n * Released under MIT license \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/** Used as the `TypeError` message for \"Functions\" methods. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/** Used to compose bitmasks for comparison styles. */\nvar UNORDERED_COMPARE_FLAG = 1,\n PARTIAL_COMPARE_FLAG = 2;\n\n/** Used as references for various `Number` constants. */\nvar INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991,\n MAX_INTEGER = 1.7976931348623157e+308,\n NAN = 0 / 0;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/** Used to match property names within property paths. */\nvar reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/,\n reLeadingDot = /^\\./,\n rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to match leading and trailing whitespace. */\nvar reTrim = /^\\s+|\\s+$/g;\n\n/** Used to match backslashes in property paths. */\nvar reEscapeChar = /\\\\(\\\\)?/g;\n\n/** Used to detect bad signed hexadecimal string values. */\nvar reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n/** Used to detect binary string values. */\nvar reIsBinary = /^0b[01]+$/i;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used to detect octal string values. */\nvar reIsOctal = /^0o[0-7]+$/i;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\ntypedArrayTags[errorTag] = typedArrayTags[funcTag] =\ntypedArrayTags[mapTag] = typedArrayTags[numberTag] =\ntypedArrayTags[objectTag] = typedArrayTags[regexpTag] =\ntypedArrayTags[setTag] = typedArrayTags[stringTag] =\ntypedArrayTags[weakMapTag] = false;\n\n/** Built-in method references without a dependency on `root`. */\nvar freeParseInt = parseInt;\n\n/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Detect free variable `process` from Node.js. */\nvar freeProcess = moduleExports && freeGlobal.process;\n\n/** Used to access faster Node.js helpers. */\nvar nodeUtil = (function() {\n try {\n return freeProcess && freeProcess.binding('util');\n } catch (e) {}\n}());\n\n/* Node.js helper references. */\nvar nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n/**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\nfunction arraySome(array, predicate) {\n var index = -1,\n length = array ? array.length : 0;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n}\n\n/**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\nfunction baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n}\n\n/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n}\n\n/**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\nfunction baseUnary(func) {\n return function(value) {\n return func(value);\n };\n}\n\n/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n return object == null ? undefined : object[key];\n}\n\n/**\n * Checks if `value` is a host object in IE < 9.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a host object, else `false`.\n */\nfunction isHostObject(value) {\n // Many host objects are `Object` objects that can coerce to strings\n // despite having improperly defined `toString` methods.\n var result = false;\n if (value != null && typeof value.toString != 'function') {\n try {\n result = !!(value + '');\n } catch (e) {}\n }\n return result;\n}\n\n/**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\nfunction mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n}\n\n/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n}\n\n/**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\nfunction setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n}\n\n/** Used for built-in method references. */\nvar arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar objectToString = objectProto.toString;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/** Built-in value references. */\nvar Symbol = root.Symbol,\n Uint8Array = root.Uint8Array,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeKeys = overArg(Object.keys, Object),\n nativeMax = Math.max;\n\n/* Built-in method references that are verified to be native. */\nvar DataView = getNative(root, 'DataView'),\n Map = getNative(root, 'Map'),\n Promise = getNative(root, 'Promise'),\n Set = getNative(root, 'Set'),\n WeakMap = getNative(root, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n/** Used to detect maps, sets, and weakmaps. */\nvar dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n/**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Hash(entries) {\n var index = -1,\n length = entries ? entries.length : 0;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\nfunction hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n}\n\n/**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction hashDelete(key) {\n return this.has(key) && delete this.__data__[key];\n}\n\n/**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n}\n\n/**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? data[key] !== undefined : hasOwnProperty.call(data, key);\n}\n\n/**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\nfunction hashSet(key, value) {\n var data = this.__data__;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n}\n\n// Add methods to `Hash`.\nHash.prototype.clear = hashClear;\nHash.prototype['delete'] = hashDelete;\nHash.prototype.get = hashGet;\nHash.prototype.has = hashHas;\nHash.prototype.set = hashSet;\n\n/**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction ListCache(entries) {\n var index = -1,\n length = entries ? entries.length : 0;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\nfunction listCacheClear() {\n this.__data__ = [];\n}\n\n/**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n return true;\n}\n\n/**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n}\n\n/**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n}\n\n/**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\nfunction listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n}\n\n// Add methods to `ListCache`.\nListCache.prototype.clear = listCacheClear;\nListCache.prototype['delete'] = listCacheDelete;\nListCache.prototype.get = listCacheGet;\nListCache.prototype.has = listCacheHas;\nListCache.prototype.set = listCacheSet;\n\n/**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction MapCache(entries) {\n var index = -1,\n length = entries ? entries.length : 0;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\nfunction mapCacheClear() {\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n}\n\n/**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction mapCacheDelete(key) {\n return getMapData(this, key)['delete'](key);\n}\n\n/**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction mapCacheGet(key) {\n return getMapData(this, key).get(key);\n}\n\n/**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction mapCacheHas(key) {\n return getMapData(this, key).has(key);\n}\n\n/**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\nfunction mapCacheSet(key, value) {\n getMapData(this, key).set(key, value);\n return this;\n}\n\n// Add methods to `MapCache`.\nMapCache.prototype.clear = mapCacheClear;\nMapCache.prototype['delete'] = mapCacheDelete;\nMapCache.prototype.get = mapCacheGet;\nMapCache.prototype.has = mapCacheHas;\nMapCache.prototype.set = mapCacheSet;\n\n/**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\nfunction SetCache(values) {\n var index = -1,\n length = values ? values.length : 0;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n}\n\n/**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\nfunction setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n}\n\n/**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\nfunction setCacheHas(value) {\n return this.__data__.has(value);\n}\n\n// Add methods to `SetCache`.\nSetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\nSetCache.prototype.has = setCacheHas;\n\n/**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Stack(entries) {\n this.__data__ = new ListCache(entries);\n}\n\n/**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\nfunction stackClear() {\n this.__data__ = new ListCache;\n}\n\n/**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction stackDelete(key) {\n return this.__data__['delete'](key);\n}\n\n/**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction stackGet(key) {\n return this.__data__.get(key);\n}\n\n/**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction stackHas(key) {\n return this.__data__.has(key);\n}\n\n/**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\nfunction stackSet(key, value) {\n var cache = this.__data__;\n if (cache instanceof ListCache) {\n var pairs = cache.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n return this;\n }\n cache = this.__data__ = new MapCache(pairs);\n }\n cache.set(key, value);\n return this;\n}\n\n// Add methods to `Stack`.\nStack.prototype.clear = stackClear;\nStack.prototype['delete'] = stackDelete;\nStack.prototype.get = stackGet;\nStack.prototype.has = stackHas;\nStack.prototype.set = stackSet;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n // Safari 8.1 makes `arguments.callee` enumerable in strict mode.\n // Safari 9 makes `arguments.length` enumerable in strict mode.\n var result = (isArray(value) || isArguments(value))\n ? baseTimes(value.length, String)\n : [];\n\n var length = result.length,\n skipIndexes = !!length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (key == 'length' || isIndex(key, length)))) {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n}\n\n/**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\nfunction baseGet(object, path) {\n path = isKey(path, object) ? [path] : castPath(path);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n}\n\n/**\n * The base implementation of `getTag`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n return objectToString.call(value);\n}\n\n/**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\nfunction baseHasIn(object, key) {\n return object != null && key in Object(object);\n}\n\n/**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {boolean} [bitmask] The bitmask of comparison flags.\n * The bitmask may be composed of the following flags:\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\nfunction baseIsEqual(value, other, customizer, bitmask, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, baseIsEqual, customizer, bitmask, stack);\n}\n\n/**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual`\n * for more details.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseIsEqualDeep(object, other, equalFunc, customizer, bitmask, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = arrayTag,\n othTag = arrayTag;\n\n if (!objIsArr) {\n objTag = getTag(object);\n objTag = objTag == argsTag ? objectTag : objTag;\n }\n if (!othIsArr) {\n othTag = getTag(other);\n othTag = othTag == argsTag ? objectTag : othTag;\n }\n var objIsObj = objTag == objectTag && !isHostObject(object),\n othIsObj = othTag == objectTag && !isHostObject(other),\n isSameTag = objTag == othTag;\n\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, equalFunc, customizer, bitmask, stack)\n : equalByTag(object, other, objTag, equalFunc, customizer, bitmask, stack);\n }\n if (!(bitmask & PARTIAL_COMPARE_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, customizer, bitmask, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, equalFunc, customizer, bitmask, stack);\n}\n\n/**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\nfunction baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, customizer, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n}\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\nfunction baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n}\n\n/**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\nfunction baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[objectToString.call(value)];\n}\n\n/**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\nfunction baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n}\n\n/**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n}\n\n/**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, undefined, UNORDERED_COMPARE_FLAG | PARTIAL_COMPARE_FLAG);\n };\n}\n\n/**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\nfunction basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n}\n\n/**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\nfunction baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\n/**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast property path array.\n */\nfunction castPath(value) {\n return isArray(value) ? value : stringToPath(value);\n}\n\n/**\n * Creates a `_.find` or `_.findLast` function.\n *\n * @private\n * @param {Function} findIndexFunc The function to find the collection index.\n * @returns {Function} Returns the new find function.\n */\nfunction createFind(findIndexFunc) {\n return function(collection, predicate, fromIndex) {\n var iterable = Object(collection);\n if (!isArrayLike(collection)) {\n var iteratee = baseIteratee(predicate, 3);\n collection = keys(collection);\n predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n }\n var index = findIndexFunc(collection, predicate, fromIndex);\n return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n };\n}\n\n/**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Function} customizer The function to customize comparisons.\n * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`\n * for more details.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\nfunction equalArrays(array, other, equalFunc, customizer, bitmask, stack) {\n var isPartial = bitmask & PARTIAL_COMPARE_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(array);\n if (stacked && stack.get(other)) {\n return stacked == other;\n }\n var index = -1,\n result = true,\n seen = (bitmask & UNORDERED_COMPARE_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!seen.has(othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack))) {\n return seen.add(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, customizer, bitmask, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n}\n\n/**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Function} customizer The function to customize comparisons.\n * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`\n * for more details.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalByTag(object, other, tag, equalFunc, customizer, bitmask, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & PARTIAL_COMPARE_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= UNORDERED_COMPARE_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), equalFunc, customizer, bitmask, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n}\n\n/**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Function} customizer The function to customize comparisons.\n * @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`\n * for more details.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalObjects(object, other, equalFunc, customizer, bitmask, stack) {\n var isPartial = bitmask & PARTIAL_COMPARE_FLAG,\n objProps = keys(object),\n objLength = objProps.length,\n othProps = keys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked && stack.get(other)) {\n return stacked == other;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, customizer, bitmask, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n}\n\n/**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\nfunction getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n}\n\n/**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\nfunction getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n}\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n}\n\n/**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nvar getTag = baseGetTag;\n\n// Fallback for data views, maps, sets, and weak maps in IE 11,\n// for data views in Edge < 14, and promises in Node.js.\nif ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = objectToString.call(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : undefined;\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n}\n\n/**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\nfunction hasPath(object, path, hasFunc) {\n path = isKey(path, object) ? [path] : castPath(path);\n\n var result,\n index = -1,\n length = path.length;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result) {\n return result;\n }\n var length = object ? object.length : 0;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n}\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n length = length == null ? MAX_SAFE_INTEGER : length;\n return !!length &&\n (typeof value == 'number' || reIsUint.test(value)) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\n/**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\nfunction isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n}\n\n/**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\nfunction isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n}\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n}\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n}\n\n/**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\nfunction isStrictComparable(value) {\n return value === value && !isObject(value);\n}\n\n/**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\nfunction matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n}\n\n/**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\nvar stringToPath = memoize(function(string) {\n string = toString(string);\n\n var result = [];\n if (reLeadingDot.test(string)) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, string) {\n result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n});\n\n/**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\nfunction toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n}\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to process.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n}\n\n/**\n * This method is like `_.find` except that it returns the index of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity]\n * The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.findIndex(users, function(o) { return o.user == 'barney'; });\n * // => 0\n *\n * // The `_.matches` iteratee shorthand.\n * _.findIndex(users, { 'user': 'fred', 'active': false });\n * // => 1\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findIndex(users, ['active', false]);\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.findIndex(users, 'active');\n * // => 2\n */\nfunction findIndex(array, predicate, fromIndex) {\n var length = array ? array.length : 0;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseFindIndex(array, baseIteratee(predicate, 3), index);\n}\n\n/**\n * Iterates over elements of `collection`, returning the first element\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity]\n * The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false },\n * { 'user': 'pebbles', 'age': 1, 'active': true }\n * ];\n *\n * _.find(users, function(o) { return o.age < 40; });\n * // => object for 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.find(users, { 'age': 1, 'active': true });\n * // => object for 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.find(users, ['active', false]);\n * // => object for 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.find(users, 'active');\n * // => object for 'barney'\n */\nvar find = createFind(findIndex);\n\n/**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\nfunction memoize(func, resolver) {\n if (typeof func != 'function' || (resolver && typeof resolver != 'function')) {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var memoized = function() {\n var args = arguments,\n key = resolver ? resolver.apply(this, args) : args[0],\n cache = memoized.cache;\n\n if (cache.has(key)) {\n return cache.get(key);\n }\n var result = func.apply(this, args);\n memoized.cache = cache.set(key, result);\n return result;\n };\n memoized.cache = new (memoize.Cache || MapCache);\n return memoized;\n}\n\n// Assign cache to `_.memoize`.\nmemoize.Cache = MapCache;\n\n/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n return value === other || (value !== value && other !== other);\n}\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nfunction isArguments(value) {\n // Safari 8.1 makes `arguments.callee` enumerable in strict mode.\n return isArrayLikeObject(value) && hasOwnProperty.call(value, 'callee') &&\n (!propertyIsEnumerable.call(value, 'callee') || objectToString.call(value) == argsTag);\n}\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n}\n\n/**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\nfunction isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n}\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 8-9 which returns 'object' for typed array and other constructors.\n var tag = isObject(value) ? objectToString.call(value) : '';\n return tag == funcTag || tag == genTag;\n}\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\n/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return !!value && (type == 'object' || type == 'function');\n}\n\n/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return !!value && typeof value == 'object';\n}\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && objectToString.call(value) == symbolTag);\n}\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nvar isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n/**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\nfunction toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n}\n\n/**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\nfunction toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? (remainder ? result - remainder : result) : 0;\n}\n\n/**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\nfunction toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = value.replace(reTrim, '');\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n}\n\n/**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\nfunction toString(value) {\n return value == null ? '' : baseToString(value);\n}\n\n/**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\nfunction get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n}\n\n/**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\nfunction hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n}\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\n/**\n * This method returns the first argument it receives.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Util\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'a': 1 };\n *\n * console.log(_.identity(object) === object);\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\n/**\n * Creates a function that returns the value at `path` of a given object.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Util\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n * @example\n *\n * var objects = [\n * { 'a': { 'b': 2 } },\n * { 'a': { 'b': 1 } }\n * ];\n *\n * _.map(objects, _.property('a.b'));\n * // => [2, 1]\n *\n * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');\n * // => [1, 2]\n */\nfunction property(path) {\n return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);\n}\n\nmodule.exports = find;\n","/**\n * Lodash (Custom Build) \n * Build: `lodash modularize exports=\"npm\" -o ./`\n * Copyright JS Foundation and other contributors \n * Released under MIT license \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/** Used to compose bitmasks for value comparisons. */\nvar COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n asyncTag = '[object AsyncFunction]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n nullTag = '[object Null]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n proxyTag = '[object Proxy]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n undefinedTag = '[object Undefined]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\ntypedArrayTags[errorTag] = typedArrayTags[funcTag] =\ntypedArrayTags[mapTag] = typedArrayTags[numberTag] =\ntypedArrayTags[objectTag] = typedArrayTags[regexpTag] =\ntypedArrayTags[setTag] = typedArrayTags[stringTag] =\ntypedArrayTags[weakMapTag] = false;\n\n/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Detect free variable `process` from Node.js. */\nvar freeProcess = moduleExports && freeGlobal.process;\n\n/** Used to access faster Node.js helpers. */\nvar nodeUtil = (function() {\n try {\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n}());\n\n/* Node.js helper references. */\nvar nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n/**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\nfunction arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n}\n\n/**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\nfunction arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n}\n\n/**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\nfunction arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n}\n\n/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n}\n\n/**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\nfunction baseUnary(func) {\n return function(value) {\n return func(value);\n };\n}\n\n/**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction cacheHas(cache, key) {\n return cache.has(key);\n}\n\n/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n return object == null ? undefined : object[key];\n}\n\n/**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\nfunction mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n}\n\n/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n}\n\n/**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\nfunction setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n}\n\n/** Used for built-in method references. */\nvar arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined,\n Symbol = root.Symbol,\n Uint8Array = root.Uint8Array,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice,\n symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeGetSymbols = Object.getOwnPropertySymbols,\n nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeKeys = overArg(Object.keys, Object);\n\n/* Built-in method references that are verified to be native. */\nvar DataView = getNative(root, 'DataView'),\n Map = getNative(root, 'Map'),\n Promise = getNative(root, 'Promise'),\n Set = getNative(root, 'Set'),\n WeakMap = getNative(root, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n/** Used to detect maps, sets, and weakmaps. */\nvar dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n/** Used to convert symbols to primitives and strings. */\nvar symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;\n\n/**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\nfunction hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n}\n\n/**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n}\n\n/**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n}\n\n/**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n}\n\n/**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\nfunction hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n}\n\n// Add methods to `Hash`.\nHash.prototype.clear = hashClear;\nHash.prototype['delete'] = hashDelete;\nHash.prototype.get = hashGet;\nHash.prototype.has = hashHas;\nHash.prototype.set = hashSet;\n\n/**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\nfunction listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n}\n\n/**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n}\n\n/**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n}\n\n/**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n}\n\n/**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\nfunction listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n}\n\n// Add methods to `ListCache`.\nListCache.prototype.clear = listCacheClear;\nListCache.prototype['delete'] = listCacheDelete;\nListCache.prototype.get = listCacheGet;\nListCache.prototype.has = listCacheHas;\nListCache.prototype.set = listCacheSet;\n\n/**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\nfunction mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n}\n\n/**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n}\n\n/**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction mapCacheGet(key) {\n return getMapData(this, key).get(key);\n}\n\n/**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction mapCacheHas(key) {\n return getMapData(this, key).has(key);\n}\n\n/**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\nfunction mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n}\n\n// Add methods to `MapCache`.\nMapCache.prototype.clear = mapCacheClear;\nMapCache.prototype['delete'] = mapCacheDelete;\nMapCache.prototype.get = mapCacheGet;\nMapCache.prototype.has = mapCacheHas;\nMapCache.prototype.set = mapCacheSet;\n\n/**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\nfunction SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n}\n\n/**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\nfunction setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n}\n\n/**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\nfunction setCacheHas(value) {\n return this.__data__.has(value);\n}\n\n// Add methods to `SetCache`.\nSetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\nSetCache.prototype.has = setCacheHas;\n\n/**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n}\n\n/**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\nfunction stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n}\n\n/**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n}\n\n/**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction stackGet(key) {\n return this.__data__.get(key);\n}\n\n/**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction stackHas(key) {\n return this.__data__.has(key);\n}\n\n/**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\nfunction stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n}\n\n// Add methods to `Stack`.\nStack.prototype.clear = stackClear;\nStack.prototype['delete'] = stackDelete;\nStack.prototype.get = stackGet;\nStack.prototype.has = stackHas;\nStack.prototype.set = stackSet;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n}\n\n/**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n}\n\n/**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n}\n\n/**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\nfunction baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n}\n\n/**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\nfunction baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n}\n\n/**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n}\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\nfunction baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n}\n\n/**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\nfunction baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n}\n\n/**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\nfunction equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(array);\n if (stacked && stack.get(other)) {\n return stacked == other;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n}\n\n/**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n}\n\n/**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\nfunction equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked && stack.get(other)) {\n return stacked == other;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n}\n\n/**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\nfunction getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n}\n\n/**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\nfunction getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n}\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n}\n\n/**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\nfunction getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n}\n\n/**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\nvar getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n};\n\n/**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nvar getTag = baseGetTag;\n\n// Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\nif ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n}\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n length = length == null ? MAX_SAFE_INTEGER : length;\n return !!length &&\n (typeof value == 'number' || reIsUint.test(value)) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\n/**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\nfunction isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n}\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n}\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n}\n\n/**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\nfunction objectToString(value) {\n return nativeObjectToString.call(value);\n}\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n}\n\n/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n return value === other || (value !== value && other !== other);\n}\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nvar isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n};\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n}\n\n/**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\nvar isBuffer = nativeIsBuffer || stubFalse;\n\n/**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\nfunction isEqual(value, other) {\n return baseIsEqual(value, other);\n}\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n}\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\n/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n}\n\n/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return value != null && typeof value == 'object';\n}\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nvar isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n/**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\nfunction keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n}\n\n/**\n * This method returns a new empty array.\n *\n * @static\n * @memberOf _\n * @since 4.13.0\n * @category Util\n * @returns {Array} Returns the new empty array.\n * @example\n *\n * var arrays = _.times(2, _.stubArray);\n *\n * console.log(arrays);\n * // => [[], []]\n *\n * console.log(arrays[0] === arrays[1]);\n * // => false\n */\nfunction stubArray() {\n return [];\n}\n\n/**\n * This method returns `false`.\n *\n * @static\n * @memberOf _\n * @since 4.13.0\n * @category Util\n * @returns {boolean} Returns `false`.\n * @example\n *\n * _.times(2, _.stubFalse);\n * // => [false, false]\n */\nfunction stubFalse() {\n return false;\n}\n\nmodule.exports = isEqual;\n","/**\n * lodash 3.0.1 (Custom Build) \n * Build: `lodash modern modularize exports=\"npm\" -o ./`\n * Copyright 2012-2015 The Dojo Foundation \n * Based on Underscore.js 1.8.3 \n * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n * Available under MIT license \n */\n\n/**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\nfunction isUndefined(value) {\n return value === undefined;\n}\n\nmodule.exports = isUndefined;\n","/**\n * Lodash (Custom Build) \n * Build: `lodash modularize exports=\"npm\" -o ./`\n * Copyright OpenJS Foundation and other contributors \n * Released under MIT license \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n\n/** Used as the size to enable large array optimizations. */\nvar LARGE_ARRAY_SIZE = 200;\n\n/** Used to stand-in for `undefined` hash values. */\nvar HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n/** Used to detect hot functions by number of calls within a span of milliseconds. */\nvar HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n/** Used as references for various `Number` constants. */\nvar MAX_SAFE_INTEGER = 9007199254740991;\n\n/** `Object#toString` result references. */\nvar argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n asyncTag = '[object AsyncFunction]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n nullTag = '[object Null]',\n objectTag = '[object Object]',\n proxyTag = '[object Proxy]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n undefinedTag = '[object Undefined]',\n weakMapTag = '[object WeakMap]';\n\nvar arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n/**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\nvar reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g;\n\n/** Used to detect host constructors (Safari). */\nvar reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n/** Used to detect unsigned integer values. */\nvar reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n/** Used to identify `toStringTag` values of typed arrays. */\nvar typedArrayTags = {};\ntypedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\ntypedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\ntypedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\ntypedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\ntypedArrayTags[uint32Tag] = true;\ntypedArrayTags[argsTag] = typedArrayTags[arrayTag] =\ntypedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\ntypedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\ntypedArrayTags[errorTag] = typedArrayTags[funcTag] =\ntypedArrayTags[mapTag] = typedArrayTags[numberTag] =\ntypedArrayTags[objectTag] = typedArrayTags[regexpTag] =\ntypedArrayTags[setTag] = typedArrayTags[stringTag] =\ntypedArrayTags[weakMapTag] = false;\n\n/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\n/** Detect free variable `exports`. */\nvar freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n/** Detect free variable `module`. */\nvar freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n/** Detect the popular CommonJS extension `module.exports`. */\nvar moduleExports = freeModule && freeModule.exports === freeExports;\n\n/** Detect free variable `process` from Node.js. */\nvar freeProcess = moduleExports && freeGlobal.process;\n\n/** Used to access faster Node.js helpers. */\nvar nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n}());\n\n/* Node.js helper references. */\nvar nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n/**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\nfunction apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n}\n\n/**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\nfunction baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n}\n\n/**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\nfunction baseUnary(func) {\n return function(value) {\n return func(value);\n };\n}\n\n/**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction getValue(object, key) {\n return object == null ? undefined : object[key];\n}\n\n/**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\nfunction overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n}\n\n/** Used for built-in method references. */\nvar arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n/** Used to detect overreaching core-js shims. */\nvar coreJsData = root['__core-js_shared__'];\n\n/** Used to resolve the decompiled source of functions. */\nvar funcToString = funcProto.toString;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/** Used to detect methods masquerading as native. */\nvar maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n}());\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/** Used to infer the `Object` constructor. */\nvar objectCtorString = funcToString.call(Object);\n\n/** Used to detect if a method is native. */\nvar reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n);\n\n/** Built-in value references. */\nvar Buffer = moduleExports ? root.Buffer : undefined,\n Symbol = root.Symbol,\n Uint8Array = root.Uint8Array,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n getPrototype = overArg(Object.getPrototypeOf, Object),\n objectCreate = Object.create,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice,\n symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\nvar defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n}());\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeMax = Math.max,\n nativeNow = Date.now;\n\n/* Built-in method references that are verified to be native. */\nvar Map = getNative(root, 'Map'),\n nativeCreate = getNative(Object, 'create');\n\n/**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\nvar baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n}());\n\n/**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\nfunction hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n}\n\n/**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n}\n\n/**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n}\n\n/**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n}\n\n/**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\nfunction hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n}\n\n// Add methods to `Hash`.\nHash.prototype.clear = hashClear;\nHash.prototype['delete'] = hashDelete;\nHash.prototype.get = hashGet;\nHash.prototype.has = hashHas;\nHash.prototype.set = hashSet;\n\n/**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\nfunction listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n}\n\n/**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n}\n\n/**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n}\n\n/**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n}\n\n/**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\nfunction listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n}\n\n// Add methods to `ListCache`.\nListCache.prototype.clear = listCacheClear;\nListCache.prototype['delete'] = listCacheDelete;\nListCache.prototype.get = listCacheGet;\nListCache.prototype.has = listCacheHas;\nListCache.prototype.set = listCacheSet;\n\n/**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n}\n\n/**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\nfunction mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n}\n\n/**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n}\n\n/**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction mapCacheGet(key) {\n return getMapData(this, key).get(key);\n}\n\n/**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction mapCacheHas(key) {\n return getMapData(this, key).has(key);\n}\n\n/**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\nfunction mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n}\n\n// Add methods to `MapCache`.\nMapCache.prototype.clear = mapCacheClear;\nMapCache.prototype['delete'] = mapCacheDelete;\nMapCache.prototype.get = mapCacheGet;\nMapCache.prototype.has = mapCacheHas;\nMapCache.prototype.set = mapCacheSet;\n\n/**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\nfunction Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n}\n\n/**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\nfunction stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n}\n\n/**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\nfunction stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n}\n\n/**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\nfunction stackGet(key) {\n return this.__data__.get(key);\n}\n\n/**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\nfunction stackHas(key) {\n return this.__data__.has(key);\n}\n\n/**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\nfunction stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n}\n\n// Add methods to `Stack`.\nStack.prototype.clear = stackClear;\nStack.prototype['delete'] = stackDelete;\nStack.prototype.get = stackGet;\nStack.prototype.has = stackHas;\nStack.prototype.set = stackSet;\n\n/**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\nfunction arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignMergeValue(object, key, value) {\n if ((value !== undefined && !eq(object[key], value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n}\n\n/**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n}\n\n/**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\nfunction assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n}\n\n/**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\nfunction baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n}\n\n/**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\nvar baseFor = createBaseFor();\n\n/**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n}\n\n/**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\nfunction baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n}\n\n/**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\nfunction baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n}\n\n/**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\nfunction baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n}\n\n/**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\nfunction baseMerge(object, source, srcIndex, customizer, stack) {\n if (object === source) {\n return;\n }\n baseFor(source, function(srcValue, key) {\n stack || (stack = new Stack);\n if (isObject(srcValue)) {\n baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n }\n else {\n var newValue = customizer\n ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n : undefined;\n\n if (newValue === undefined) {\n newValue = srcValue;\n }\n assignMergeValue(object, key, newValue);\n }\n }, keysIn);\n}\n\n/**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\nfunction baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n var objValue = safeGet(object, key),\n srcValue = safeGet(source, key),\n stacked = stack.get(srcValue);\n\n if (stacked) {\n assignMergeValue(object, key, stacked);\n return;\n }\n var newValue = customizer\n ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n : undefined;\n\n var isCommon = newValue === undefined;\n\n if (isCommon) {\n var isArr = isArray(srcValue),\n isBuff = !isArr && isBuffer(srcValue),\n isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n newValue = srcValue;\n if (isArr || isBuff || isTyped) {\n if (isArray(objValue)) {\n newValue = objValue;\n }\n else if (isArrayLikeObject(objValue)) {\n newValue = copyArray(objValue);\n }\n else if (isBuff) {\n isCommon = false;\n newValue = cloneBuffer(srcValue, true);\n }\n else if (isTyped) {\n isCommon = false;\n newValue = cloneTypedArray(srcValue, true);\n }\n else {\n newValue = [];\n }\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n newValue = objValue;\n if (isArguments(objValue)) {\n newValue = toPlainObject(objValue);\n }\n else if (!isObject(objValue) || isFunction(objValue)) {\n newValue = initCloneObject(srcValue);\n }\n }\n else {\n isCommon = false;\n }\n }\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, newValue);\n mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n stack['delete'](srcValue);\n }\n assignMergeValue(object, key, newValue);\n}\n\n/**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\nfunction baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n}\n\n/**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n};\n\n/**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\nfunction cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n}\n\n/**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\nfunction cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n}\n\n/**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\nfunction cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n}\n\n/**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\nfunction copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n}\n\n/**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\nfunction copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n}\n\n/**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\nfunction createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n}\n\n/**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\nfunction createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n}\n\n/**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\nfunction getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n}\n\n/**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\nfunction getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n}\n\n/**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\nfunction getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n}\n\n/**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\nfunction initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n}\n\n/**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\nfunction isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n}\n\n/**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\nfunction isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n}\n\n/**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\nfunction isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n}\n\n/**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\nfunction isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n}\n\n/**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\nfunction isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n}\n\n/**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\nfunction nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n}\n\n/**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\nfunction objectToString(value) {\n return nativeObjectToString.call(value);\n}\n\n/**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\nfunction overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n}\n\n/**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\nfunction safeGet(object, key) {\n if (key === 'constructor' && typeof object[key] === 'function') {\n return;\n }\n\n if (key == '__proto__') {\n return;\n }\n\n return object[key];\n}\n\n/**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\nvar setToString = shortOut(baseSetToString);\n\n/**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\nfunction shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n}\n\n/**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\nfunction toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n}\n\n/**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\nfunction eq(value, other) {\n return value === other || (value !== value && other !== other);\n}\n\n/**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\nvar isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n};\n\n/**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\nvar isArray = Array.isArray;\n\n/**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\nfunction isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n}\n\n/**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\nfunction isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n}\n\n/**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\nvar isBuffer = nativeIsBuffer || stubFalse;\n\n/**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\nfunction isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n}\n\n/**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\nfunction isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n}\n\n/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n}\n\n/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return value != null && typeof value == 'object';\n}\n\n/**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\nfunction isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n}\n\n/**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\nvar isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n/**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\nfunction toPlainObject(value) {\n return copyObject(value, keysIn(value));\n}\n\n/**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\nfunction keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n}\n\n/**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\nvar merge = createAssigner(function(object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n});\n\n/**\n * Creates a function that returns `value`.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Util\n * @param {*} value The value to return from the new function.\n * @returns {Function} Returns the new constant function.\n * @example\n *\n * var objects = _.times(2, _.constant({ 'a': 1 }));\n *\n * console.log(objects);\n * // => [{ 'a': 1 }, { 'a': 1 }]\n *\n * console.log(objects[0] === objects[1]);\n * // => true\n */\nfunction constant(value) {\n return function() {\n return value;\n };\n}\n\n/**\n * This method returns the first argument it receives.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Util\n * @param {*} value Any value.\n * @returns {*} Returns `value`.\n * @example\n *\n * var object = { 'a': 1 };\n *\n * console.log(_.identity(object) === object);\n * // => true\n */\nfunction identity(value) {\n return value;\n}\n\n/**\n * This method returns `false`.\n *\n * @static\n * @memberOf _\n * @since 4.13.0\n * @category Util\n * @returns {boolean} Returns `false`.\n * @example\n *\n * _.times(2, _.stubFalse);\n * // => [false, false]\n */\nfunction stubFalse() {\n return false;\n}\n\nmodule.exports = merge;\n","import React, { useCallback } from 'react';\nimport clsx from 'clsx';\nimport TableCell from '@mui/material/TableCell';\nimport { makeStyles } from 'tss-react/mui';\n\nconst useStyles = makeStyles({ name: 'MUIDataTableBodyCell' })(theme => ({\n root: {},\n cellHide: {\n display: 'none',\n },\n simpleHeader: {\n [theme.breakpoints.down('sm')]: {\n display: 'inline-block',\n fontWeight: 'bold',\n width: '100%',\n boxSizing: 'border-box',\n },\n },\n simpleCell: {\n [theme.breakpoints.down('sm')]: {\n display: 'inline-block',\n width: '100%',\n boxSizing: 'border-box',\n },\n },\n stackedHeader: {\n verticalAlign: 'top',\n },\n stackedCommon: {\n [theme.breakpoints.down('md')]: {\n display: 'inline-block',\n fontSize: '16px',\n height: 'auto',\n width: 'calc(50%)',\n boxSizing: 'border-box',\n '&:last-child': {\n borderBottom: 'none',\n },\n '&:nth-last-of-type(2)': {\n borderBottom: 'none',\n },\n },\n },\n stackedCommonAlways: {\n display: 'inline-block',\n fontSize: '16px',\n height: 'auto',\n width: 'calc(50%)',\n boxSizing: 'border-box',\n '&:last-child': {\n borderBottom: 'none',\n },\n '&:nth-last-of-type(2)': {\n borderBottom: 'none',\n },\n },\n stackedParent: {\n [theme.breakpoints.down('md')]: {\n display: 'inline-block',\n fontSize: '16px',\n height: 'auto',\n width: 'calc(100%)',\n boxSizing: 'border-box',\n },\n },\n stackedParentAlways: {\n display: 'inline-block',\n fontSize: '16px',\n height: 'auto',\n width: 'calc(100%)',\n boxSizing: 'border-box',\n },\n cellStackedSmall: {\n [theme.breakpoints.down('md')]: {\n width: '50%',\n boxSizing: 'border-box',\n },\n },\n responsiveStackedSmall: {\n [theme.breakpoints.down('md')]: {\n width: '50%',\n boxSizing: 'border-box',\n },\n },\n responsiveStackedSmallParent: {\n [theme.breakpoints.down('md')]: {\n width: '100%',\n boxSizing: 'border-box',\n },\n },\n}));\n\nfunction TableBodyCell(props) {\n const { classes } = useStyles();\n const {\n children,\n colIndex,\n columnHeader,\n options,\n dataIndex,\n rowIndex,\n className,\n print,\n tableId,\n ...otherProps\n } = props;\n const onCellClick = options.onCellClick;\n\n const handleClick = useCallback(\n event => {\n onCellClick(children, { colIndex, rowIndex, dataIndex, event });\n },\n [onCellClick, children, colIndex, rowIndex, dataIndex],\n );\n\n // Event listeners. Avoid attaching them if they're not necessary.\n let methods = {};\n if (onCellClick) {\n methods.onClick = handleClick;\n }\n\n let cells = [\n \n {columnHeader}\n