Added: portals/jetspeed-2/applications/j2-admin/trunk/src/main/webapp/jetapp/bower_components/lodash.js
URL: http://svn.apache.org/viewvc/portals/jetspeed-2/applications/j2-admin/trunk/src/main/webapp/jetapp/bower_components/lodash.js?rev=1662855&view=auto
==============================================================================
--- portals/jetspeed-2/applications/j2-admin/trunk/src/main/webapp/jetapp/bower_components/lodash.js (added)
+++ portals/jetspeed-2/applications/j2-admin/trunk/src/main/webapp/jetapp/bower_components/lodash.js Fri Feb 27 23:33:58 2015
@@ -0,0 +1,10796 @@
+/**
+ * @license
+ * lodash 3.0.1 (Custom Build) <https://lodash.com/>
+ * Build: `lodash modern -o ./lodash.js`
+ * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
+ * Based on Underscore.js 1.7.0 <http://underscorejs.org/LICENSE>
+ * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
+ * Available under MIT license <https://lodash.com/license>
+ */
+;(function() {
+
+ /** Used as a safe reference for `undefined` in pre-ES5 environments. */
+ var undefined;
+
+ /** Used as the semantic version number. */
+ var VERSION = '3.0.1';
+
+ /** Used to compose bitmasks for wrapper metadata. */
+ var BIND_FLAG = 1,
+ BIND_KEY_FLAG = 2,
+ CURRY_BOUND_FLAG = 4,
+ CURRY_FLAG = 8,
+ CURRY_RIGHT_FLAG = 16,
+ PARTIAL_FLAG = 32,
+ PARTIAL_RIGHT_FLAG = 64,
+ REARG_FLAG = 128,
+ ARY_FLAG = 256;
+
+ /** Used as default options for `_.trunc`. */
+ var DEFAULT_TRUNC_LENGTH = 30,
+ DEFAULT_TRUNC_OMISSION = '...';
+
+ /** Used to detect when a function becomes hot. */
+ var HOT_COUNT = 150,
+ HOT_SPAN = 16;
+
+ /** Used to indicate the type of lazy iteratees. */
+ var LAZY_FILTER_FLAG = 0,
+ LAZY_MAP_FLAG = 1,
+ LAZY_WHILE_FLAG = 2;
+
+ /** Used as the `TypeError` message for "Functions" methods. */
+ var FUNC_ERROR_TEXT = 'Expected a function';
+
+ /** Used as the internal argument placeholder. */
+ var PLACEHOLDER = '__lodash_placeholder__';
+
+ /** `Object#toString` result references. */
+ var argsTag = '[object Arguments]',
+ arrayTag = '[object Array]',
+ boolTag = '[object Boolean]',
+ dateTag = '[object Date]',
+ errorTag = '[object Error]',
+ funcTag = '[object Function]',
+ mapTag = '[object Map]',
+ numberTag = '[object Number]',
+ objectTag = '[object Object]',
+ regexpTag = '[object RegExp]',
+ setTag = '[object Set]',
+ stringTag = '[object String]',
+ weakMapTag = '[object WeakMap]';
+
+ var arrayBufferTag = '[object ArrayBuffer]',
+ float32Tag = '[object Float32Array]',
+ float64Tag = '[object Float64Array]',
+ int8Tag = '[object Int8Array]',
+ int16Tag = '[object Int16Array]',
+ int32Tag = '[object Int32Array]',
+ uint8Tag = '[object Uint8Array]',
+ uint8ClampedTag = '[object Uint8ClampedArray]',
+ uint16Tag = '[object Uint16Array]',
+ uint32Tag = '[object Uint32Array]';
+
+ /** Used to match empty string literals in compiled template source. */
+ var reEmptyStringLeading = /\b__p \+= '';/g,
+ reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
+ reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
+
+ /** Used to match HTML entities and HTML characters. */
+ var reEscapedHtml = /&(?:amp|lt|gt|quot|#39|#96);/g,
+ reUnescapedHtml = /[&<>"'`]/g,
+ reHasEscapedHtml = RegExp(reEscapedHtml.source),
+ reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
+
+ /** Used to match template delimiters. */
+ var reEscape = /<%-([\s\S]+?)%>/g,
+ reEvaluate = /<%([\s\S]+?)%>/g,
+ reInterpolate = /<%=([\s\S]+?)%>/g;
+
+ /**
+ * Used to match ES template delimiters.
+ * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-template-literal-lexical-components)
+ * for more details.
+ */
+ var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
+
+ /** Used to match `RegExp` flags from their coerced string values. */
+ var reFlags = /\w*$/;
+
+ /** Used to detect named functions. */
+ var reFuncName = /^\s*function[ \n\r\t]+\w/;
+
+ /** Used to detect hexadecimal string values. */
+ var reHexPrefix = /^0[xX]/;
+
+ /** Used to detect host constructors (Safari > 5). */
+ var reHostCtor = /^\[object .+?Constructor\]$/;
+
+ /** Used to match latin-1 supplementary letters (excluding mathematical operators). */
+ var reLatin1 = /[\xc0-\xd6\xd8-\xde\xdf-\xf6\xf8-\xff]/g;
+
+ /** Used to ensure capturing order of template delimiters. */
+ var reNoMatch = /($^)/;
+
+ /**
+ * Used to match `RegExp` special characters.
+ * See this [article on `RegExp` characters](http://www.regular-expressions.info/characters.html#special)
+ * for more details.
+ */
+ var reRegExpChars = /[.*+?^${}()|[\]\/\\]/g,
+ reHasRegExpChars = RegExp(reRegExpChars.source);
+
+ /** Used to detect functions containing a `this` reference. */
+ var reThis = /\bthis\b/;
+
+ /** Used to match unescaped characters in compiled string literals. */
+ var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
+
+ /** Used to match words to create compound words. */
+ var reWords = (function() {
+ var upper = '[A-Z\\xc0-\\xd6\\xd8-\\xde]',
+ lower = '[a-z\\xdf-\\xf6\\xf8-\\xff]+';
+
+ return RegExp(upper + '{2,}(?=' + upper + lower + ')|' + upper + '?' + lower + '|' + upper + '+|[0-9]+', 'g');
+ }());
+
+ /** Used to detect and test for whitespace. */
+ var whitespace = (
+ // Basic whitespace characters.
+ ' \t\x0b\f\xa0\ufeff' +
+
+ // Line terminators.
+ '\n\r\u2028\u2029' +
+
+ // Unicode category "Zs" space separators.
+ '\u1680\u180e\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200a\u202f\u205f\u3000'
+ );
+
+ /** Used to assign default `context` object properties. */
+ var contextProps = [
+ 'Array', 'ArrayBuffer', 'Date', 'Error', 'Float32Array', 'Float64Array',
+ 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Math', 'Number',
+ 'Object', 'RegExp', 'Set', 'String', '_', 'clearTimeout', 'document',
+ 'isFinite', 'parseInt', 'setTimeout', 'TypeError', 'Uint8Array',
+ 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
+ 'window', 'WinRTError'
+ ];
+
+ /** Used to make template sourceURLs easier to identify. */
+ var templateCounter = -1;
+
+ /** Used to identify `toStringTag` values of typed arrays. */
+ var typedArrayTags = {};
+ typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
+ typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
+ typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
+ typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
+ typedArrayTags[uint32Tag] = true;
+ typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
+ typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
+ typedArrayTags[dateTag] = typedArrayTags[errorTag] =
+ typedArrayTags[funcTag] = typedArrayTags[mapTag] =
+ typedArrayTags[numberTag] = typedArrayTags[objectTag] =
+ typedArrayTags[regexpTag] = typedArrayTags[setTag] =
+ typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;
+
+ /** Used to identify `toStringTag` values supported by `_.clone`. */
+ var cloneableTags = {};
+ cloneableTags[argsTag] = cloneableTags[arrayTag] =
+ cloneableTags[arrayBufferTag] = cloneableTags[boolTag] =
+ cloneableTags[dateTag] = cloneableTags[float32Tag] =
+ cloneableTags[float64Tag] = cloneableTags[int8Tag] =
+ cloneableTags[int16Tag] = cloneableTags[int32Tag] =
+ cloneableTags[numberTag] = cloneableTags[objectTag] =
+ cloneableTags[regexpTag] = cloneableTags[stringTag] =
+ cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
+ cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
+ cloneableTags[errorTag] = cloneableTags[funcTag] =
+ cloneableTags[mapTag] = cloneableTags[setTag] =
+ cloneableTags[weakMapTag] = false;
+
+ /** Used as an internal `_.debounce` options object by `_.throttle`. */
+ var debounceOptions = {
+ 'leading': false,
+ 'maxWait': 0,
+ 'trailing': false
+ };
+
+ /** Used to map latin-1 supplementary letters to basic latin letters. */
+ var deburredLetters = {
+ '\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
+ '\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
+ '\xc7': 'C', '\xe7': 'c',
+ '\xd0': 'D', '\xf0': 'd',
+ '\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
+ '\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
+ '\xcC': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
+ '\xeC': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i',
+ '\xd1': 'N', '\xf1': 'n',
+ '\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
+ '\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
+ '\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
+ '\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
+ '\xdd': 'Y', '\xfd': 'y', '\xff': 'y',
+ '\xc6': 'Ae', '\xe6': 'ae',
+ '\xde': 'Th', '\xfe': 'th',
+ '\xdf': 'ss'
+ };
+
+ /** Used to map characters to HTML entities. */
+ var htmlEscapes = {
+ '&': '&',
+ '<': '<',
+ '>': '>',
+ '"': '"',
+ "'": ''',
+ '`': '`'
+ };
+
+ /** Used to map HTML entities to characters. */
+ var htmlUnescapes = {
+ '&': '&',
+ '<': '<',
+ '>': '>',
+ '"': '"',
+ ''': "'",
+ '`': '`'
+ };
+
+ /** Used to determine if values are of the language type `Object`. */
+ var objectTypes = {
+ 'function': true,
+ 'object': true
+ };
+
+ /** Used to escape characters for inclusion in compiled string literals. */
+ var stringEscapes = {
+ '\\': '\\',
+ "'": "'",
+ '\n': 'n',
+ '\r': 'r',
+ '\u2028': 'u2028',
+ '\u2029': 'u2029'
+ };
+
+ /**
+ * Used as a reference to the global object.
+ *
+ * The `this` value is used if it is the global object to avoid Greasemonkey's
+ * restricted `window` object, otherwise the `window` object is used.
+ */
+ var root = (objectTypes[typeof window] && window !== (this && this.window)) ? window : this;
+
+ /** Detect free variable `exports`. */
+ var freeExports = objectTypes[typeof exports] && exports && !exports.nodeType && exports;
+
+ /** Detect free variable `module`. */
+ var freeModule = objectTypes[typeof module] && module && !module.nodeType && module;
+
+ /** Detect free variable `global` from Node.js or Browserified code and use it as `root`. */
+ var freeGlobal = freeExports && freeModule && typeof global == 'object' && global;
+ if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal || freeGlobal.self === freeGlobal)) {
+ root = freeGlobal;
+ }
+
+ /** Detect the popular CommonJS extension `module.exports`. */
+ var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * The base implementation of `compareAscending` which compares values and
+ * sorts them in ascending order without guaranteeing a stable sort.
+ *
+ * @private
+ * @param {*} value The value to compare to `other`.
+ * @param {*} other The value to compare to `value`.
+ * @returns {number} Returns the sort order indicator for `value`.
+ */
+ function baseCompareAscending(value, other) {
+ if (value !== other) {
+ var valIsReflexive = value === value,
+ othIsReflexive = other === other;
+
+ if (value > other || !valIsReflexive || (typeof value == 'undefined' && othIsReflexive)) {
+ return 1;
+ }
+ if (value < other || !othIsReflexive || (typeof other == 'undefined' && valIsReflexive)) {
+ return -1;
+ }
+ }
+ return 0;
+ }
+
+ /**
+ * The base implementation of `_.indexOf` without support for binary searches.
+ *
+ * @private
+ * @param {Array} array The array to search.
+ * @param {*} value The value to search for.
+ * @param {number} [fromIndex=0] The index to search from.
+ * @returns {number} Returns the index of the matched value, else `-1`.
+ */
+ function baseIndexOf(array, value, fromIndex) {
+ if (value !== value) {
+ return indexOfNaN(array, fromIndex);
+ }
+ var index = (fromIndex || 0) - 1,
+ length = array.length;
+
+ while (++index < length) {
+ if (array[index] === value) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * The base implementation of `_.sortBy` and `_.sortByAll` which uses `comparer`
+ * to define the sort order of `array` and replaces criteria objects with their
+ * corresponding values.
+ *
+ * @private
+ * @param {Array} array The array to sort.
+ * @param {Function} comparer The function to define sort order.
+ * @returns {Array} Returns `array`.
+ */
+ function baseSortBy(array, comparer) {
+ var length = array.length;
+
+ array.sort(comparer);
+ while (length--) {
+ array[length] = array[length].value;
+ }
+ return array;
+ }
+
+ /**
+ * Converts `value` to a string if it is not one. An empty string is returned
+ * for `null` or `undefined` values.
+ *
+ * @private
+ * @param {*} value The value to process.
+ * @returns {string} Returns the string.
+ */
+ function baseToString(value) {
+ if (typeof value == 'string') {
+ return value;
+ }
+ return value == null ? '' : (value + '');
+ }
+
+ /**
+ * Used by `_.max` and `_.min` as the default callback for string values.
+ *
+ * @private
+ * @param {string} string The string to inspect.
+ * @returns {number} Returns the code unit of the first character of the string.
+ */
+ function charAtCallback(string) {
+ return string.charCodeAt(0);
+ }
+
+ /**
+ * Used by `_.trim` and `_.trimLeft` to get the index of the first character
+ * of `string` that is not found in `chars`.
+ *
+ * @private
+ * @param {string} string The string to inspect.
+ * @param {string} chars The characters to find.
+ * @returns {number} Returns the index of the first character not found in `chars`.
+ */
+ function charsLeftIndex(string, chars) {
+ var index = -1,
+ length = string.length;
+
+ while (++index < length && chars.indexOf(string.charAt(index)) > -1) {}
+ return index;
+ }
+
+ /**
+ * Used by `_.trim` and `_.trimRight` to get the index of the last character
+ * of `string` that is not found in `chars`.
+ *
+ * @private
+ * @param {string} string The string to inspect.
+ * @param {string} chars The characters to find.
+ * @returns {number} Returns the index of the last character not found in `chars`.
+ */
+ function charsRightIndex(string, chars) {
+ var index = string.length;
+
+ while (index-- && chars.indexOf(string.charAt(index)) > -1) {}
+ return index;
+ }
+
+ /**
+ * Used by `_.sortBy` to compare transformed elements of a collection and stable
+ * sort them in ascending order.
+ *
+ * @private
+ * @param {Object} object The object to compare to `other`.
+ * @param {Object} other The object to compare to `object`.
+ * @returns {number} Returns the sort order indicator for `object`.
+ */
+ function compareAscending(object, other) {
+ return baseCompareAscending(object.criteria, other.criteria) || (object.index - other.index);
+ }
+
+ /**
+ * Used by `_.sortByAll` to compare multiple properties of each element
+ * in a collection and stable sort them in ascending order.
+ *
+ * @private
+ * @param {Object} object The object to compare to `other`.
+ * @param {Object} other The object to compare to `object`.
+ * @returns {number} Returns the sort order indicator for `object`.
+ */
+ function compareMultipleAscending(object, other) {
+ var index = -1,
+ objCriteria = object.criteria,
+ othCriteria = other.criteria,
+ length = objCriteria.length;
+
+ while (++index < length) {
+ var result = baseCompareAscending(objCriteria[index], othCriteria[index]);
+ if (result) {
+ return result;
+ }
+ }
+ // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
+ // that causes it, under certain circumstances, to provide the same value for
+ // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
+ // for more details.
+ //
+ // This also ensures a stable sort in V8 and other engines.
+ // See https://code.google.com/p/v8/issues/detail?id=90 for more details.
+ return object.index - other.index;
+ }
+
+ /**
+ * Used by `_.deburr` to convert latin-1 supplementary letters to basic latin letters.
+ *
+ * @private
+ * @param {string} letter The matched letter to deburr.
+ * @returns {string} Returns the deburred letter.
+ */
+ function deburrLetter(letter) {
+ return deburredLetters[letter];
+ }
+
+ /**
+ * Used by `_.escape` to convert characters to HTML entities.
+ *
+ * @private
+ * @param {string} chr The matched character to escape.
+ * @returns {string} Returns the escaped character.
+ */
+ function escapeHtmlChar(chr) {
+ return htmlEscapes[chr];
+ }
+
+ /**
+ * Used by `_.template` to escape characters for inclusion in compiled
+ * string literals.
+ *
+ * @private
+ * @param {string} chr The matched character to escape.
+ * @returns {string} Returns the escaped character.
+ */
+ function escapeStringChar(chr) {
+ return '\\' + stringEscapes[chr];
+ }
+
+ /**
+ * Gets the index at which the first occurrence of `NaN` is found in `array`.
+ * If `fromRight` is provided elements of `array` are iterated from right to left.
+ *
+ * @private
+ * @param {Array} array The array to search.
+ * @param {number} [fromIndex] The index to search from.
+ * @param {boolean} [fromRight] Specify iterating from right to left.
+ * @returns {number} Returns the index of the matched `NaN`, else `-1`.
+ */
+ function indexOfNaN(array, fromIndex, fromRight) {
+ var length = array.length,
+ index = fromRight ? (fromIndex || length) : ((fromIndex || 0) - 1);
+
+ while ((fromRight ? index-- : ++index < length)) {
+ var other = array[index];
+ if (other !== other) {
+ return index;
+ }
+ }
+ return -1;
+ }
+
+ /**
+ * Checks if `value` is object-like.
+ *
+ * @private
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
+ */
+ function isObjectLike(value) {
+ return (value && typeof value == 'object') || false;
+ }
+
+ /**
+ * Used by `trimmedLeftIndex` and `trimmedRightIndex` to determine if a
+ * character code is whitespace.
+ *
+ * @private
+ * @param {number} charCode The character code to inspect.
+ * @returns {boolean} Returns `true` if `charCode` is whitespace, else `false`.
+ */
+ function isSpace(charCode) {
+ return ((charCode <= 160 && (charCode >= 9 && charCode <= 13) || charCode == 32 || charCode == 160) || charCode == 5760 || charCode == 6158 ||
+ (charCode >= 8192 && (charCode <= 8202 || charCode == 8232 || charCode == 8233 || charCode == 8239 || charCode == 8287 || charCode == 12288 || charCode == 65279)));
+ }
+
+ /**
+ * Replaces all `placeholder` elements in `array` with an internal placeholder
+ * and returns an array of their indexes.
+ *
+ * @private
+ * @param {Array} array The array to modify.
+ * @param {*} placeholder The placeholder to replace.
+ * @returns {Array} Returns the new array of placeholder indexes.
+ */
+ function replaceHolders(array, placeholder) {
+ var index = -1,
+ length = array.length,
+ resIndex = -1,
+ result = [];
+
+ while (++index < length) {
+ if (array[index] === placeholder) {
+ array[index] = PLACEHOLDER;
+ result[++resIndex] = index;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * An implementation of `_.uniq` optimized for sorted arrays without support
+ * for callback shorthands and `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {Function} [iteratee] The function invoked per iteration.
+ * @returns {Array} Returns the new duplicate-value-free array.
+ */
+ function sortedUniq(array, iteratee) {
+ var seen,
+ index = -1,
+ length = array.length,
+ resIndex = -1,
+ result = [];
+
+ while (++index < length) {
+ var value = array[index],
+ computed = iteratee ? iteratee(value, index, array) : value;
+
+ if (!index || seen !== computed) {
+ seen = computed;
+ result[++resIndex] = value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Used by `_.trim` and `_.trimLeft` to get the index of the first non-whitespace
+ * character of `string`.
+ *
+ * @private
+ * @param {string} string The string to inspect.
+ * @returns {number} Returns the index of the first non-whitespace character.
+ */
+ function trimmedLeftIndex(string) {
+ var index = -1,
+ length = string.length;
+
+ while (++index < length && isSpace(string.charCodeAt(index))) {}
+ return index;
+ }
+
+ /**
+ * Used by `_.trim` and `_.trimRight` to get the index of the last non-whitespace
+ * character of `string`.
+ *
+ * @private
+ * @param {string} string The string to inspect.
+ * @returns {number} Returns the index of the last non-whitespace character.
+ */
+ function trimmedRightIndex(string) {
+ var index = string.length;
+
+ while (index-- && isSpace(string.charCodeAt(index))) {}
+ return index;
+ }
+
+ /**
+ * Used by `_.unescape` to convert HTML entities to characters.
+ *
+ * @private
+ * @param {string} chr The matched character to unescape.
+ * @returns {string} Returns the unescaped character.
+ */
+ function unescapeHtmlChar(chr) {
+ return htmlUnescapes[chr];
+ }
+
+ /*--------------------------------------------------------------------------*/
+
+ /**
+ * Create a new pristine `lodash` function using the given `context` object.
+ *
+ * @static
+ * @memberOf _
+ * @category Utility
+ * @param {Object} [context=root] The context object.
+ * @returns {Function} Returns a new `lodash` function.
+ * @example
+ *
+ * _.mixin({ 'add': function(a, b) { return a + b; } });
+ *
+ * var lodash = _.runInContext();
+ * lodash.mixin({ 'sub': function(a, b) { return a - b; } });
+ *
+ * _.isFunction(_.add);
+ * // => true
+ * _.isFunction(_.sub);
+ * // => false
+ *
+ * lodash.isFunction(lodash.add);
+ * // => false
+ * lodash.isFunction(lodash.sub);
+ * // => true
+ *
+ * // using `context` to mock `Date#getTime` use in `_.now`
+ * var mock = _.runInContext({
+ * 'Date': function() {
+ * return { 'getTime': getTimeMock };
+ * }
+ * });
+ *
+ * // or creating a suped-up `defer` in Node.js
+ * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
+ */
+ function runInContext(context) {
+ // Avoid issues with some ES3 environments that attempt to use values, named
+ // after built-in constructors like `Object`, for the creation of literals.
+ // ES5 clears this up by stating that literals must use built-in constructors.
+ // See https://es5.github.io/#x11.1.5 for more details.
+ context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
+
+ /** Native constructor references. */
+ var Array = context.Array,
+ Date = context.Date,
+ Error = context.Error,
+ Function = context.Function,
+ Math = context.Math,
+ Number = context.Number,
+ Object = context.Object,
+ RegExp = context.RegExp,
+ String = context.String,
+ TypeError = context.TypeError;
+
+ /** Used for native method references. */
+ var arrayProto = Array.prototype,
+ objectProto = Object.prototype;
+
+ /** Used to detect DOM support. */
+ var document = (document = context.window) && document.document;
+
+ /** Used to resolve the decompiled source of functions. */
+ var fnToString = Function.prototype.toString;
+
+ /** Used to the length of n-tuples for `_.unzip`. */
+ var getLength = baseProperty('length');
+
+ /** Used to check objects for own properties. */
+ var hasOwnProperty = objectProto.hasOwnProperty;
+
+ /** Used to generate unique IDs. */
+ var idCounter = 0;
+
+ /**
+ * Used to resolve the `toStringTag` of values.
+ * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
+ * for more details.
+ */
+ var objToString = objectProto.toString;
+
+ /** Used to restore the original `_` reference in `_.noConflict`. */
+ var oldDash = context._;
+
+ /** Used to detect if a method is native. */
+ var reNative = RegExp('^' +
+ escapeRegExp(objToString)
+ .replace(/toString|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
+ );
+
+ /** Native method references. */
+ var ArrayBuffer = isNative(ArrayBuffer = context.ArrayBuffer) && ArrayBuffer,
+ bufferSlice = isNative(bufferSlice = ArrayBuffer && new ArrayBuffer(0).slice) && bufferSlice,
+ ceil = Math.ceil,
+ clearTimeout = context.clearTimeout,
+ floor = Math.floor,
+ getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf,
+ push = arrayProto.push,
+ propertyIsEnumerable = objectProto.propertyIsEnumerable,
+ Set = isNative(Set = context.Set) && Set,
+ setTimeout = context.setTimeout,
+ splice = arrayProto.splice,
+ Uint8Array = isNative(Uint8Array = context.Uint8Array) && Uint8Array,
+ unshift = arrayProto.unshift,
+ WeakMap = isNative(WeakMap = context.WeakMap) && WeakMap;
+
+ /** Used to clone array buffers. */
+ var Float64Array = (function() {
+ // Safari 5 errors when using an array buffer to initialize a typed array
+ // where the array buffer's `byteLength` is not a multiple of the typed
+ // array's `BYTES_PER_ELEMENT`.
+ try {
+ var func = isNative(func = context.Float64Array) && func,
+ result = new func(new ArrayBuffer(10), 0, 1) && func;
+ } catch(e) {}
+ return result;
+ }());
+
+ /* Native method references for those with the same name as other `lodash` methods. */
+ var nativeIsArray = isNative(nativeIsArray = Array.isArray) && nativeIsArray,
+ nativeCreate = isNative(nativeCreate = Object.create) && nativeCreate,
+ nativeIsFinite = context.isFinite,
+ nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys,
+ nativeMax = Math.max,
+ nativeMin = Math.min,
+ nativeNow = isNative(nativeNow = Date.now) && nativeNow,
+ nativeNumIsFinite = isNative(nativeNumIsFinite = Number.isFinite) && nativeNumIsFinite,
+ nativeParseInt = context.parseInt,
+ nativeRandom = Math.random;
+
+ /** Used as references for `-Infinity` and `Infinity`. */
+ var NEGATIVE_INFINITY = Number.NEGATIVE_INFINITY,
+ POSITIVE_INFINITY = Number.POSITIVE_INFINITY;
+
+ /** Used as references for the maximum length and index of an array. */
+ var MAX_ARRAY_LENGTH = Math.pow(2, 32) - 1,
+ MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
+ HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
+
+ /** Used as the size, in bytes, of each `Float64Array` element. */
+ var FLOAT64_BYTES_PER_ELEMENT = Float64Array ? Float64Array.BYTES_PER_ELEMENT : 0;
+
+ /**
+ * Used as the maximum length of an array-like value.
+ * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength)
+ * for more details.
+ */
+ var MAX_SAFE_INTEGER = Math.pow(2, 53) - 1;
+
+ /** Used to store function metadata. */
+ var metaMap = WeakMap && new WeakMap;
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates a `lodash` object which wraps `value` to enable intuitive chaining.
+ * Methods that operate on and return arrays, collections, and functions can
+ * be chained together. Methods that return a boolean or single value will
+ * automatically end the chain returning the unwrapped value. Explicit chaining
+ * may be enabled using `_.chain`. The execution of chained methods is lazy,
+ * that is, execution is deferred until `_#value` is implicitly or explicitly
+ * called.
+ *
+ * Lazy evaluation allows several methods to support shortcut fusion. Shortcut
+ * fusion is an optimization that merges iteratees to avoid creating intermediate
+ * arrays and reduce the number of iteratee executions.
+ *
+ * Chaining is supported in custom builds as long as the `_#value` method is
+ * directly or indirectly included in the build.
+ *
+ * In addition to lodash methods, wrappers also have the following `Array` methods:
+ * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
+ * and `unshift`
+ *
+ * The wrapper functions that support shortcut fusion are:
+ * `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`, `first`,
+ * `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`, `slice`,
+ * `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `where`
+ *
+ * The chainable wrapper functions are:
+ * `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`,
+ * `callback`, `chain`, `chunk`, `compact`, `concat`, `constant`, `countBy`,
+ * `create`, `curry`, `debounce`, `defaults`, `defer`, `delay`, `difference`,
+ * `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`, `flatten`,
+ * `flattenDeep`, `flow`, `flowRight`, `forEach`, `forEachRight`, `forIn`,
+ * `forInRight`, `forOwn`, `forOwnRight`, `functions`, `groupBy`, `indexBy`,
+ * `initial`, `intersection`, `invert`, `invoke`, `keys`, `keysIn`, `map`,
+ * `mapValues`, `matches`, `memoize`, `merge`, `mixin`, `negate`, `noop`,
+ * `omit`, `once`, `pairs`, `partial`, `partialRight`, `partition`, `pick`,
+ * `pluck`, `property`, `propertyOf`, `pull`, `pullAt`, `push`, `range`,
+ * `rearg`, `reject`, `remove`, `rest`, `reverse`, `shuffle`, `slice`, `sort`,
+ * `sortBy`, `sortByAll`, `splice`, `take`, `takeRight`, `takeRightWhile`,
+ * `takeWhile`, `tap`, `throttle`, `thru`, `times`, `toArray`, `toPlainObject`,
+ * `transform`, `union`, `uniq`, `unshift`, `unzip`, `values`, `valuesIn`,
+ * `where`, `without`, `wrap`, `xor`, `zip`, and `zipObject`
+ *
+ * The wrapper functions that are **not** chainable by default are:
+ * `attempt`, `camelCase`, `capitalize`, `clone`, `cloneDeep`, `deburr`,
+ * `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`,
+ * `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`, `has`,
+ * `identity`, `includes`, `indexOf`, `isArguments`, `isArray`, `isBoolean`,
+ * `isDate`, `isElement`, `isEmpty`, `isEqual`, `isError`, `isFinite`,
+ * `isFunction`, `isMatch` , `isNative`, `isNaN`, `isNull`, `isNumber`,
+ * `isObject`, `isPlainObject`, `isRegExp`, `isString`, `isUndefined`,
+ * `isTypedArray`, `join`, `kebabCase`, `last`, `lastIndexOf`, `max`, `min`,
+ * `noConflict`, `now`, `pad`, `padLeft`, `padRight`, `parseInt`, `pop`,
+ * `random`, `reduce`, `reduceRight`, `repeat`, `result`, `runInContext`,
+ * `shift`, `size`, `snakeCase`, `some`, `sortedIndex`, `sortedLastIndex`,
+ * `startsWith`, `template`, `trim`, `trimLeft`, `trimRight`, `trunc`,
+ * `unescape`, `uniqueId`, `value`, and `words`
+ *
+ * The wrapper function `sample` will return a wrapped value when `n` is provided,
+ * otherwise an unwrapped value is returned.
+ *
+ * @name _
+ * @constructor
+ * @category Chain
+ * @param {*} value The value to wrap in a `lodash` instance.
+ * @returns {Object} Returns a `lodash` instance.
+ * @example
+ *
+ * var wrapped = _([1, 2, 3]);
+ *
+ * // returns an unwrapped value
+ * wrapped.reduce(function(sum, n) { return sum + n; });
+ * // => 6
+ *
+ * // returns a wrapped value
+ * var squares = wrapped.map(function(n) { return n * n; });
+ *
+ * _.isArray(squares);
+ * // => false
+ *
+ * _.isArray(squares.value());
+ * // => true
+ */
+ function lodash(value) {
+ if (isObjectLike(value) && !isArray(value)) {
+ if (value instanceof LodashWrapper) {
+ return value;
+ }
+ if (hasOwnProperty.call(value, '__wrapped__')) {
+ return new LodashWrapper(value.__wrapped__, value.__chain__, arrayCopy(value.__actions__));
+ }
+ }
+ return new LodashWrapper(value);
+ }
+
+ /**
+ * The base constructor for creating `lodash` wrapper objects.
+ *
+ * @private
+ * @param {*} value The value to wrap.
+ * @param {boolean} [chainAll] Enable chaining for all wrapper methods.
+ * @param {Array} [actions=[]] Actions to peform to resolve the unwrapped value.
+ */
+ function LodashWrapper(value, chainAll, actions) {
+ this.__actions__ = actions || [];
+ this.__chain__ = !!chainAll;
+ this.__wrapped__ = value;
+ }
+
+ /**
+ * An object environment feature flags.
+ *
+ * @static
+ * @memberOf _
+ * @type Object
+ */
+ var support = lodash.support = {};
+
+ (function(x) {
+
+ /**
+ * Detect if functions can be decompiled by `Function#toString`
+ * (all but Firefox OS certified apps, older Opera mobile browsers, and
+ * the PlayStation 3; forced `false` for Windows 8 apps).
+ *
+ * @memberOf _.support
+ * @type boolean
+ */
+ support.funcDecomp = !isNative(context.WinRTError) && reThis.test(runInContext);
+
+ /**
+ * Detect if `Function#name` is supported (all but IE).
+ *
+ * @memberOf _.support
+ * @type boolean
+ */
+ support.funcNames = typeof Function.name == 'string';
+
+ /**
+ * Detect if the DOM is supported.
+ *
+ * @memberOf _.support
+ * @type boolean
+ */
+ try {
+ support.dom = document.createDocumentFragment().nodeType === 11;
+ } catch(e) {
+ support.dom = false;
+ }
+
+ /**
+ * Detect if `arguments` object indexes are non-enumerable.
+ *
+ * In Firefox < 4, IE < 9, PhantomJS, and Safari < 5.1 `arguments` object
+ * indexes are non-enumerable. Chrome < 25 and Node.js < 0.11.0 treat
+ * `arguments` object indexes as non-enumerable and fail `hasOwnProperty`
+ * checks for indexes that exceed their function's formal parameters with
+ * associated values of `0`.
+ *
+ * @memberOf _.support
+ * @type boolean
+ */
+ try {
+ support.nonEnumArgs = !propertyIsEnumerable.call(arguments, 1);
+ } catch(e) {
+ support.nonEnumArgs = true;
+ }
+ }(0, 0));
+
+ /**
+ * By default, the template delimiters used by lodash are like those in
+ * embedded Ruby (ERB). Change the following template settings to use
+ * alternative delimiters.
+ *
+ * @static
+ * @memberOf _
+ * @type Object
+ */
+ lodash.templateSettings = {
+
+ /**
+ * Used to detect `data` property values to be HTML-escaped.
+ *
+ * @memberOf _.templateSettings
+ * @type RegExp
+ */
+ 'escape': reEscape,
+
+ /**
+ * Used to detect code to be evaluated.
+ *
+ * @memberOf _.templateSettings
+ * @type RegExp
+ */
+ 'evaluate': reEvaluate,
+
+ /**
+ * Used to detect `data` property values to inject.
+ *
+ * @memberOf _.templateSettings
+ * @type RegExp
+ */
+ 'interpolate': reInterpolate,
+
+ /**
+ * Used to reference the data object in the template text.
+ *
+ * @memberOf _.templateSettings
+ * @type string
+ */
+ 'variable': '',
+
+ /**
+ * Used to import variables into the compiled template.
+ *
+ * @memberOf _.templateSettings
+ * @type Object
+ */
+ 'imports': {
+
+ /**
+ * A reference to the `lodash` function.
+ *
+ * @memberOf _.templateSettings.imports
+ * @type Function
+ */
+ '_': lodash
+ }
+ };
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
+ *
+ * @private
+ * @param {*} value The value to wrap.
+ */
+ function LazyWrapper(value) {
+ this.actions = null;
+ this.dir = 1;
+ this.dropCount = 0;
+ this.filtered = false;
+ this.iteratees = null;
+ this.takeCount = POSITIVE_INFINITY;
+ this.views = null;
+ this.wrapped = value;
+ }
+
+ /**
+ * Creates a clone of the lazy wrapper object.
+ *
+ * @private
+ * @name clone
+ * @memberOf LazyWrapper
+ * @returns {Object} Returns the cloned `LazyWrapper` object.
+ */
+ function lazyClone() {
+ var actions = this.actions,
+ iteratees = this.iteratees,
+ views = this.views,
+ result = new LazyWrapper(this.wrapped);
+
+ result.actions = actions ? arrayCopy(actions) : null;
+ result.dir = this.dir;
+ result.dropCount = this.dropCount;
+ result.filtered = this.filtered;
+ result.iteratees = iteratees ? arrayCopy(iteratees) : null;
+ result.takeCount = this.takeCount;
+ result.views = views ? arrayCopy(views) : null;
+ return result;
+ }
+
+ /**
+ * Reverses the direction of lazy iteration.
+ *
+ * @private
+ * @name reverse
+ * @memberOf LazyWrapper
+ * @returns {Object} Returns the new reversed `LazyWrapper` object.
+ */
+ function lazyReverse() {
+ if (this.filtered) {
+ var result = new LazyWrapper(this);
+ result.dir = -1;
+ result.filtered = true;
+ } else {
+ result = this.clone();
+ result.dir *= -1;
+ }
+ return result;
+ }
+
+ /**
+ * Extracts the unwrapped value from its lazy wrapper.
+ *
+ * @private
+ * @name value
+ * @memberOf LazyWrapper
+ * @returns {*} Returns the unwrapped value.
+ */
+ function lazyValue() {
+ var array = this.wrapped.value();
+ if (!isArray(array)) {
+ return baseWrapperValue(array, this.actions);
+ }
+ var dir = this.dir,
+ isRight = dir < 0,
+ view = getView(0, array.length, this.views),
+ start = view.start,
+ end = view.end,
+ length = end - start,
+ dropCount = this.dropCount,
+ takeCount = nativeMin(length, this.takeCount - dropCount),
+ index = isRight ? end : start - 1,
+ iteratees = this.iteratees,
+ iterLength = iteratees ? iteratees.length : 0,
+ resIndex = 0,
+ result = [];
+
+ outer:
+ while (length-- && resIndex < takeCount) {
+ index += dir;
+
+ var iterIndex = -1,
+ value = array[index];
+
+ while (++iterIndex < iterLength) {
+ var data = iteratees[iterIndex],
+ iteratee = data.iteratee,
+ computed = iteratee(value, index, array),
+ type = data.type;
+
+ if (type == LAZY_MAP_FLAG) {
+ value = computed;
+ } else if (!computed) {
+ if (type == LAZY_FILTER_FLAG) {
+ continue outer;
+ } else {
+ break outer;
+ }
+ }
+ }
+ if (dropCount) {
+ dropCount--;
+ } else {
+ result[resIndex++] = value;
+ }
+ }
+ return result;
+ }
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Creates a cache object to store key/value pairs.
+ *
+ * @private
+ * @static
+ * @name Cache
+ * @memberOf _.memoize
+ */
+ function MapCache() {
+ this.__data__ = {};
+ }
+
+ /**
+ * Removes `key` and its value from the cache.
+ *
+ * @private
+ * @name delete
+ * @memberOf _.memoize.Cache
+ * @param {string} key The key of the value to remove.
+ * @returns {boolean} Returns `true` if the entry was removed successfully, else `false`.
+ */
+ function mapDelete(key) {
+ return this.has(key) && delete this.__data__[key];
+ }
+
+ /**
+ * Gets the cached value for `key`.
+ *
+ * @private
+ * @name get
+ * @memberOf _.memoize.Cache
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the cached value.
+ */
+ function mapGet(key) {
+ return key == '__proto__' ? undefined : this.__data__[key];
+ }
+
+ /**
+ * Checks if a cached value for `key` exists.
+ *
+ * @private
+ * @name has
+ * @memberOf _.memoize.Cache
+ * @param {string} key The key of the entry to check.
+ * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
+ */
+ function mapHas(key) {
+ return key != '__proto__' && hasOwnProperty.call(this.__data__, key);
+ }
+
+ /**
+ * Adds `value` to `key` of the cache.
+ *
+ * @private
+ * @name set
+ * @memberOf _.memoize.Cache
+ * @param {string} key The key of the value to cache.
+ * @param {*} value The value to cache.
+ * @returns {Object} Returns the cache object.
+ */
+ function mapSet(key, value) {
+ if (key != '__proto__') {
+ this.__data__[key] = value;
+ }
+ return this;
+ }
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ *
+ * Creates a cache object to store unique values.
+ *
+ * @private
+ * @param {Array} [values] The values to cache.
+ */
+ function SetCache(values) {
+ var length = values ? values.length : 0;
+
+ this.data = { 'hash': nativeCreate(null), 'set': new Set };
+ while (length--) {
+ this.push(values[length]);
+ }
+ }
+
+ /**
+ * Checks if `value` is in `cache` mimicking the return signature of
+ * `_.indexOf` by returning `0` if the value is found, else `-1`.
+ *
+ * @private
+ * @param {Object} cache The cache to search.
+ * @param {*} value The value to search for.
+ * @returns {number} Returns `0` if `value` is found, else `-1`.
+ */
+ function cacheIndexOf(cache, value) {
+ var data = cache.data,
+ result = (typeof value == 'string' || isObject(value)) ? data.set.has(value) : data.hash[value];
+
+ return result ? 0 : -1;
+ }
+
+ /**
+ * Adds `value` to the cache.
+ *
+ * @private
+ * @name push
+ * @memberOf SetCache
+ * @param {*} value The value to cache.
+ */
+ function cachePush(value) {
+ var data = this.data;
+ if (typeof value == 'string' || isObject(value)) {
+ data.set.add(value);
+ } else {
+ data.hash[value] = true;
+ }
+ }
+
+ /*------------------------------------------------------------------------*/
+
+ /**
+ * Copies the values of `source` to `array`.
+ *
+ * @private
+ * @param {Array} source The array to copy values from.
+ * @param {Array} [array=[]] The array to copy values to.
+ * @returns {Array} Returns `array`.
+ */
+ function arrayCopy(source, array) {
+ var index = -1,
+ length = source.length;
+
+ array || (array = Array(length));
+ while (++index < length) {
+ array[index] = source[index];
+ }
+ return array;
+ }
+
+ /**
+ * A specialized version of `_.forEach` for arrays without support for callback
+ * shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns `array`.
+ */
+ function arrayEach(array, iteratee) {
+ var index = -1,
+ length = array.length;
+
+ while (++index < length) {
+ if (iteratee(array[index], index, array) === false) {
+ break;
+ }
+ }
+ return array;
+ }
+
+ /**
+ * A specialized version of `_.forEachRight` for arrays without support for
+ * callback shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns `array`.
+ */
+ function arrayEachRight(array, iteratee) {
+ var length = array.length;
+
+ while (length--) {
+ if (iteratee(array[length], length, array) === false) {
+ break;
+ }
+ }
+ return array;
+ }
+
+ /**
+ * A specialized version of `_.every` for arrays without support for callback
+ * shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {boolean} Returns `true` if all elements pass the predicate check,
+ * else `false`.
+ */
+ function arrayEvery(array, predicate) {
+ var index = -1,
+ length = array.length;
+
+ while (++index < length) {
+ if (!predicate(array[index], index, array)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * A specialized version of `_.filter` for arrays without support for callback
+ * shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {Array} Returns the new filtered array.
+ */
+ function arrayFilter(array, predicate) {
+ var index = -1,
+ length = array.length,
+ resIndex = -1,
+ result = [];
+
+ while (++index < length) {
+ var value = array[index];
+ if (predicate(value, index, array)) {
+ result[++resIndex] = value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * A specialized version of `_.map` for arrays without support for callback
+ * shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns the new mapped array.
+ */
+ function arrayMap(array, iteratee) {
+ var index = -1,
+ length = array.length,
+ result = Array(length);
+
+ while (++index < length) {
+ result[index] = iteratee(array[index], index, array);
+ }
+ return result;
+ }
+
+ /**
+ * A specialized version of `_.max` for arrays without support for iteratees.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @returns {*} Returns the maximum value.
+ */
+ function arrayMax(array) {
+ var index = -1,
+ length = array.length,
+ result = NEGATIVE_INFINITY;
+
+ while (++index < length) {
+ var value = array[index];
+ if (value > result) {
+ result = value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * A specialized version of `_.min` for arrays without support for iteratees.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @returns {*} Returns the minimum value.
+ */
+ function arrayMin(array) {
+ var index = -1,
+ length = array.length,
+ result = POSITIVE_INFINITY;
+
+ while (++index < length) {
+ var value = array[index];
+ if (value < result) {
+ result = value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * A specialized version of `_.reduce` for arrays without support for callback
+ * shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {*} [accumulator] The initial value.
+ * @param {boolean} [initFromArray] Specify using the first element of `array`
+ * as the initial value.
+ * @returns {*} Returns the accumulated value.
+ */
+ function arrayReduce(array, iteratee, accumulator, initFromArray) {
+ var index = -1,
+ length = array.length;
+
+ if (initFromArray && length) {
+ accumulator = array[++index];
+ }
+ while (++index < length) {
+ accumulator = iteratee(accumulator, array[index], index, array);
+ }
+ return accumulator;
+ }
+
+ /**
+ * A specialized version of `_.reduceRight` for arrays without support for
+ * callback shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {*} [accumulator] The initial value.
+ * @param {boolean} [initFromArray] Specify using the last element of `array`
+ * as the initial value.
+ * @returns {*} Returns the accumulated value.
+ */
+ function arrayReduceRight(array, iteratee, accumulator, initFromArray) {
+ var length = array.length;
+ if (initFromArray && length) {
+ accumulator = array[--length];
+ }
+ while (length--) {
+ accumulator = iteratee(accumulator, array[length], length, array);
+ }
+ return accumulator;
+ }
+
+ /**
+ * A specialized version of `_.some` for arrays without support for callback
+ * shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {boolean} Returns `true` if any element passes the predicate check,
+ * else `false`.
+ */
+ function arraySome(array, predicate) {
+ var index = -1,
+ length = array.length;
+
+ while (++index < length) {
+ if (predicate(array[index], index, array)) {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ /**
+ * Used by `_.defaults` to customize its `_.assign` use.
+ *
+ * @private
+ * @param {*} objectValue The destination object property value.
+ * @param {*} sourceValue The source object property value.
+ * @returns {*} Returns the value to assign to the destination object.
+ */
+ function assignDefaults(objectValue, sourceValue) {
+ return typeof objectValue == 'undefined' ? sourceValue : objectValue;
+ }
+
+ /**
+ * Used by `_.template` to customize its `_.assign` use.
+ *
+ * **Note:** This method is like `assignDefaults` except that it ignores
+ * inherited property values when checking if a property is `undefined`.
+ *
+ * @private
+ * @param {*} objectValue The destination object property value.
+ * @param {*} sourceValue The source object property value.
+ * @param {string} key The key associated with the object and source values.
+ * @param {Object} object The destination object.
+ * @returns {*} Returns the value to assign to the destination object.
+ */
+ function assignOwnDefaults(objectValue, sourceValue, key, object) {
+ return (typeof objectValue == 'undefined' || !hasOwnProperty.call(object, key))
+ ? sourceValue
+ : objectValue;
+ }
+
+ /**
+ * The base implementation of `_.assign` without support for argument juggling,
+ * multiple sources, and `this` binding `customizer` functions.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @param {Function} [customizer] The function to customize assigning values.
+ * @returns {Object} Returns the destination object.
+ */
+ function baseAssign(object, source, customizer) {
+ var props = keys(source);
+ if (!customizer) {
+ return baseCopy(source, object, props);
+ }
+ var index = -1,
+ length = props.length
+
+ while (++index < length) {
+ var key = props[index],
+ value = object[key],
+ result = customizer(value, source[key], key, object, source);
+
+ if ((result === result ? result !== value : value === value) ||
+ (typeof value == 'undefined' && !(key in object))) {
+ object[key] = result;
+ }
+ }
+ return object;
+ }
+
+ /**
+ * The base implementation of `_.at` without support for strings and individual
+ * key arguments.
+ *
+ * @private
+ * @param {Array|Object} collection The collection to iterate over.
+ * @param {number[]|string[]} [props] The property names or indexes of elements to pick.
+ * @returns {Array} Returns the new array of picked elements.
+ */
+ function baseAt(collection, props) {
+ var index = -1,
+ length = collection.length,
+ isArr = isLength(length),
+ propsLength = props.length,
+ result = Array(propsLength);
+
+ while(++index < propsLength) {
+ var key = props[index];
+ if (isArr) {
+ key = parseFloat(key);
+ result[index] = isIndex(key, length) ? collection[key] : undefined;
+ } else {
+ result[index] = collection[key];
+ }
+ }
+ return result;
+ }
+
+ /**
+ * Copies the properties of `source` to `object`.
+ *
+ * @private
+ * @param {Object} source The object to copy properties from.
+ * @param {Object} [object={}] The object to copy properties to.
+ * @param {Array} props The property names to copy.
+ * @returns {Object} Returns `object`.
+ */
+ function baseCopy(source, object, props) {
+ if (!props) {
+ props = object;
+ object = {};
+ }
+ var index = -1,
+ length = props.length;
+
+ while (++index < length) {
+ var key = props[index];
+ object[key] = source[key];
+ }
+ return object;
+ }
+
+ /**
+ * The base implementation of `_.bindAll` without support for individual
+ * method name arguments.
+ *
+ * @private
+ * @param {Object} object The object to bind and assign the bound methods to.
+ * @param {string[]} methodNames The object method names to bind.
+ * @returns {Object} Returns `object`.
+ */
+ function baseBindAll(object, methodNames) {
+ var index = -1,
+ length = methodNames.length;
+
+ while (++index < length) {
+ var key = methodNames[index];
+ object[key] = createWrapper(object[key], BIND_FLAG, object);
+ }
+ return object;
+ }
+
+ /**
+ * The base implementation of `_.callback` which supports specifying the
+ * number of arguments to provide to `func`.
+ *
+ * @private
+ * @param {*} [func=_.identity] The value to convert to a callback.
+ * @param {*} [thisArg] The `this` binding of `func`.
+ * @param {number} [argCount] The number of arguments to provide to `func`.
+ * @returns {Function} Returns the callback.
+ */
+ function baseCallback(func, thisArg, argCount) {
+ var type = typeof func;
+ if (type == 'function') {
+ return (typeof thisArg != 'undefined' && isBindable(func))
+ ? bindCallback(func, thisArg, argCount)
+ : func;
+ }
+ if (func == null) {
+ return identity;
+ }
+ // Handle "_.property" and "_.matches" style callback shorthands.
+ return type == 'object'
+ ? baseMatches(func, !argCount)
+ : baseProperty(func + '');
+ }
+
+ /**
+ * The base implementation of `_.clone` without support for argument juggling
+ * and `this` binding `customizer` functions.
+ *
+ * @private
+ * @param {*} value The value to clone.
+ * @param {boolean} [isDeep] Specify a deep clone.
+ * @param {Function} [customizer] The function to customize cloning values.
+ * @param {string} [key] The key of `value`.
+ * @param {Object} [object] The object `value` belongs to.
+ * @param {Array} [stackA=[]] Tracks traversed source objects.
+ * @param {Array} [stackB=[]] Associates clones with source counterparts.
+ * @returns {*} Returns the cloned value.
+ */
+ function baseClone(value, isDeep, customizer, key, object, stackA, stackB) {
+ var result;
+ if (customizer) {
+ result = object ? customizer(value, key, object) : customizer(value);
+ }
+ if (typeof result != 'undefined') {
+ return result;
+ }
+ if (!isObject(value)) {
+ return value;
+ }
+ var isArr = isArray(value);
+ if (isArr) {
+ result = initCloneArray(value);
+ if (!isDeep) {
+ return arrayCopy(value, result);
+ }
+ } else {
+ var tag = objToString.call(value),
+ isFunc = tag == funcTag;
+
+ if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
+ result = initCloneObject(isFunc ? {} : value);
+ if (!isDeep) {
+ return baseCopy(value, result, keys(value));
+ }
+ } else {
+ return cloneableTags[tag]
+ ? initCloneByTag(value, tag, isDeep)
+ : (object ? value : {});
+ }
+ }
+ // Check for circular references and return corresponding clone.
+ stackA || (stackA = []);
+ stackB || (stackB = []);
+
+ var length = stackA.length;
+ while (length--) {
+ if (stackA[length] == value) {
+ return stackB[length];
+ }
+ }
+ // Add the source value to the stack of traversed objects and associate it with its clone.
+ stackA.push(value);
+ stackB.push(result);
+
+ // Recursively populate clone (susceptible to call stack limits).
+ (isArr ? arrayEach : baseForOwn)(value, function(subValue, key) {
+ result[key] = baseClone(subValue, isDeep, customizer, key, value, stackA, stackB);
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.create` without support for assigning
+ * properties to the created object.
+ *
+ * @private
+ * @param {Object} prototype The object to inherit from.
+ * @returns {Object} Returns the new object.
+ */
+ var baseCreate = (function() {
+ function Object() {}
+ return function(prototype) {
+ if (isObject(prototype)) {
+ Object.prototype = prototype;
+ var result = new Object;
+ Object.prototype = null;
+ }
+ return result || context.Object();
+ };
+ }());
+
+ /**
+ * The base implementation of `_.delay` and `_.defer` which accepts an index
+ * of where to slice the arguments to provide to `func`.
+ *
+ * @private
+ * @param {Function} func The function to delay.
+ * @param {number} wait The number of milliseconds to delay invocation.
+ * @param {Object} args The `arguments` object to slice and provide to `func`.
+ * @returns {number} Returns the timer id.
+ */
+ function baseDelay(func, wait, args, fromIndex) {
+ if (!isFunction(func)) {
+ throw new TypeError(FUNC_ERROR_TEXT);
+ }
+ return setTimeout(function() { func.apply(undefined, baseSlice(args, fromIndex)); }, wait);
+ }
+
+ /**
+ * The base implementation of `_.difference` which accepts a single array
+ * of values to exclude.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {Array} values The values to exclude.
+ * @returns {Array} Returns the new array of filtered values.
+ */
+ function baseDifference(array, values) {
+ var length = array ? array.length : 0,
+ result = [];
+
+ if (!length) {
+ return result;
+ }
+ var index = -1,
+ indexOf = getIndexOf(),
+ isCommon = indexOf == baseIndexOf,
+ cache = isCommon && values.length >= 200 && createCache(values),
+ valuesLength = values.length;
+
+ if (cache) {
+ indexOf = cacheIndexOf;
+ isCommon = false;
+ values = cache;
+ }
+ outer:
+ while (++index < length) {
+ var value = array[index];
+
+ if (isCommon && value === value) {
+ var valuesIndex = valuesLength;
+ while (valuesIndex--) {
+ if (values[valuesIndex] === value) {
+ continue outer;
+ }
+ }
+ result.push(value);
+ }
+ else if (indexOf(values, value) < 0) {
+ result.push(value);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.forEach` without support for callback
+ * shorthands and `this` binding.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array|Object|string} Returns `collection`.
+ */
+ function baseEach(collection, iteratee) {
+ var length = collection ? collection.length : 0;
+ if (!isLength(length)) {
+ return baseForOwn(collection, iteratee);
+ }
+ var index = -1,
+ iterable = toObject(collection);
+
+ while (++index < length) {
+ if (iteratee(iterable[index], index, iterable) === false) {
+ break;
+ }
+ }
+ return collection;
+ }
+
+ /**
+ * The base implementation of `_.forEachRight` without support for callback
+ * shorthands and `this` binding.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array|Object|string} Returns `collection`.
+ */
+ function baseEachRight(collection, iteratee) {
+ var length = collection ? collection.length : 0;
+ if (!isLength(length)) {
+ return baseForOwnRight(collection, iteratee);
+ }
+ var iterable = toObject(collection);
+ while (length--) {
+ if (iteratee(iterable[length], length, iterable) === false) {
+ break;
+ }
+ }
+ return collection;
+ }
+
+ /**
+ * The base implementation of `_.every` without support for callback
+ * shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {boolean} Returns `true` if all elements pass the predicate check,
+ * else `false`
+ */
+ function baseEvery(collection, predicate) {
+ var result = true;
+ baseEach(collection, function(value, index, collection) {
+ result = !!predicate(value, index, collection);
+ return result;
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.filter` without support for callback
+ * shorthands or `this` binding.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {Array} Returns the new filtered array.
+ */
+ function baseFilter(collection, predicate) {
+ var result = [];
+ baseEach(collection, function(value, index, collection) {
+ if (predicate(value, index, collection)) {
+ result.push(value);
+ }
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.find`, `_.findLast`, `_.findKey`, and `_.findLastKey`,
+ * without support for callback shorthands and `this` binding, which iterates
+ * over `collection` using the provided `eachFunc`.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to search.
+ * @param {Function} predicate The function invoked per iteration.
+ * @param {Function} eachFunc The function to iterate over `collection`.
+ * @param {boolean} [retKey] Specify returning the key of the found element
+ * instead of the element itself.
+ * @returns {*} Returns the found element or its key, else `undefined`.
+ */
+ function baseFind(collection, predicate, eachFunc, retKey) {
+ var result;
+ eachFunc(collection, function(value, key, collection) {
+ if (predicate(value, key, collection)) {
+ result = retKey ? key : value;
+ return false;
+ }
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.flatten` with added support for restricting
+ * flattening and specifying the start index.
+ *
+ * @private
+ * @param {Array} array The array to flatten.
+ * @param {boolean} [isDeep] Specify a deep flatten.
+ * @param {boolean} [isStrict] Restrict flattening to arrays and `arguments` objects.
+ * @param {number} [fromIndex=0] The index to start from.
+ * @returns {Array} Returns the new flattened array.
+ */
+ function baseFlatten(array, isDeep, isStrict, fromIndex) {
+ var index = (fromIndex || 0) - 1,
+ length = array.length,
+ resIndex = -1,
+ result = [];
+
+ while (++index < length) {
+ var value = array[index];
+
+ if (isObjectLike(value) && isLength(value.length) && (isArray(value) || isArguments(value))) {
+ if (isDeep) {
+ // Recursively flatten arrays (susceptible to call stack limits).
+ value = baseFlatten(value, isDeep, isStrict);
+ }
+ var valIndex = -1,
+ valLength = value.length;
+
+ result.length += valLength;
+ while (++valIndex < valLength) {
+ result[++resIndex] = value[valIndex];
+ }
+ } else if (!isStrict) {
+ result[++resIndex] = value;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `baseForIn` and `baseForOwn` which iterates
+ * over `object` properties returned by `keysFunc` invoking `iteratee` for
+ * each property. Iterator functions may exit iteration early by explicitly
+ * returning `false`.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {Function} keysFunc The function to get the keys of `object`.
+ * @returns {Object} Returns `object`.
+ */
+ function baseFor(object, iteratee, keysFunc) {
+ var index = -1,
+ iterable = toObject(object),
+ props = keysFunc(object),
+ length = props.length;
+
+ while (++index < length) {
+ var key = props[index];
+ if (iteratee(iterable[key], key, iterable) === false) {
+ break;
+ }
+ }
+ return object;
+ }
+
+ /**
+ * This function is like `baseFor` except that it iterates over properties
+ * in the opposite order.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {Function} keysFunc The function to get the keys of `object`.
+ * @returns {Object} Returns `object`.
+ */
+ function baseForRight(object, iteratee, keysFunc) {
+ var iterable = toObject(object),
+ props = keysFunc(object),
+ length = props.length;
+
+ while (length--) {
+ var key = props[length];
+ if (iteratee(iterable[key], key, iterable) === false) {
+ break;
+ }
+ }
+ return object;
+ }
+
+ /**
+ * The base implementation of `_.forIn` without support for callback
+ * shorthands and `this` binding.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ */
+ function baseForIn(object, iteratee) {
+ return baseFor(object, iteratee, keysIn);
+ }
+
+ /**
+ * The base implementation of `_.forOwn` without support for callback
+ * shorthands and `this` binding.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ */
+ function baseForOwn(object, iteratee) {
+ return baseFor(object, iteratee, keys);
+ }
+
+ /**
+ * The base implementation of `_.forOwnRight` without support for callback
+ * shorthands and `this` binding.
+ *
+ * @private
+ * @param {Object} object The object to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Object} Returns `object`.
+ */
+ function baseForOwnRight(object, iteratee) {
+ return baseForRight(object, iteratee, keys);
+ }
+
+ /**
+ * The base implementation of `_.functions` which creates an array of
+ * `object` function property names filtered from those provided.
+ *
+ * @private
+ * @param {Object} object The object to inspect.
+ * @param {Array} props The property names to filter.
+ * @returns {Array} Returns the new array of filtered property names.
+ */
+ function baseFunctions(object, props) {
+ var index = -1,
+ length = props.length,
+ resIndex = -1,
+ result = [];
+
+ while (++index < length) {
+ var key = props[index];
+ if (isFunction(object[key])) {
+ result[++resIndex] = key;
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.invoke` which requires additional arguments
+ * to be provided as an array of arguments rather than individually.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function|string} methodName The name of the method to invoke or
+ * the function invoked per iteration.
+ * @param {Array} [args] The arguments to invoke the method with.
+ * @returns {Array} Returns the array of results.
+ */
+ function baseInvoke(collection, methodName, args) {
+ var index = -1,
+ isFunc = typeof methodName == 'function',
+ length = collection ? collection.length : 0,
+ result = isLength(length) ? Array(length) : [];
+
+ baseEach(collection, function(value) {
+ var func = isFunc ? methodName : (value != null && value[methodName]);
+ result[++index] = func ? func.apply(value, args) : undefined;
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.isEqual` without support for `this` binding
+ * `customizer` functions.
+ *
+ * @private
+ * @param {*} value The value to compare.
+ * @param {*} other The other value to compare.
+ * @param {Function} [customizer] The function to customize comparing values.
+ * @param {boolean} [isWhere] Specify performing partial comparisons.
+ * @param {Array} [stackA] Tracks traversed `value` objects.
+ * @param {Array} [stackB] Tracks traversed `other` objects.
+ * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
+ */
+ function baseIsEqual(value, other, customizer, isWhere, stackA, stackB) {
+ // Exit early for identical values.
+ if (value === other) {
+ // Treat `+0` vs. `-0` as not equal.
+ return value !== 0 || (1 / value == 1 / other);
+ }
+ var valType = typeof value,
+ othType = typeof other;
+
+ // Exit early for unlike primitive values.
+ if ((valType != 'function' && valType != 'object' && othType != 'function' && othType != 'object') ||
+ value == null || other == null) {
+ // Return `false` unless both values are `NaN`.
+ return value !== value && other !== other;
+ }
+ return baseIsEqualDeep(value, other, baseIsEqual, customizer, isWhere, stackA, stackB);
+ }
+
+ /**
+ * A specialized version of `baseIsEqual` for arrays and objects which performs
+ * deep comparisons and tracks traversed objects enabling objects with circular
+ * references to be compared.
+ *
+ * @private
+ * @param {Object} object The object to compare.
+ * @param {Object} other The other object to compare.
+ * @param {Function} equalFunc The function to determine equivalents of values.
+ * @param {Function} [customizer] The function to customize comparing objects.
+ * @param {boolean} [isWhere] Specify performing partial comparisons.
+ * @param {Array} [stackA=[]] Tracks traversed `value` objects.
+ * @param {Array} [stackB=[]] Tracks traversed `other` objects.
+ * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
+ */
+ function baseIsEqualDeep(object, other, equalFunc, customizer, isWhere, stackA, stackB) {
+ var objIsArr = isArray(object),
+ othIsArr = isArray(other),
+ objTag = arrayTag,
+ othTag = arrayTag;
+
+ if (!objIsArr) {
+ objTag = objToString.call(object);
+ if (objTag == argsTag) {
+ objTag = objectTag;
+ } else if (objTag != objectTag) {
+ objIsArr = isTypedArray(object);
+ }
+ }
+ if (!othIsArr) {
+ othTag = objToString.call(other);
+ if (othTag == argsTag) {
+ othTag = objectTag;
+ } else if (othTag != objectTag) {
+ othIsArr = isTypedArray(other);
+ }
+ }
+ var objIsObj = objTag == objectTag,
+ othIsObj = othTag == objectTag,
+ isSameTag = objTag == othTag;
+
+ if (isSameTag && !(objIsArr || objIsObj)) {
+ return equalByTag(object, other, objTag);
+ }
+ var valWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
+ othWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
+
+ if (valWrapped || othWrapped) {
+ return equalFunc(valWrapped ? object.value() : object, othWrapped ? other.value() : other, customizer, isWhere, stackA, stackB);
+ }
+ if (!isSameTag) {
+ return false;
+ }
+ // Assume cyclic values are equal.
+ // For more information on detecting circular references see https://es5.github.io/#JO.
+ stackA || (stackA = []);
+ stackB || (stackB = []);
+
+ var length = stackA.length;
+ while (length--) {
+ if (stackA[length] == object) {
+ return stackB[length] == other;
+ }
+ }
+ // Add `object` and `other` to the stack of traversed objects.
+ stackA.push(object);
+ stackB.push(other);
+
+ var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isWhere, stackA, stackB);
+
+ stackA.pop();
+ stackB.pop();
+
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.isMatch` without support for callback
+ * shorthands or `this` binding.
+ *
+ * @private
+ * @param {Object} source The object to inspect.
+ * @param {Array} props The source property names to match.
+ * @param {Array} values The source values to match.
+ * @param {Array} strictCompareFlags Strict comparison flags for source values.
+ * @param {Function} [customizer] The function to customize comparing objects.
+ * @returns {boolean} Returns `true` if `object` is a match, else `false`.
+ */
+ function baseIsMatch(object, props, values, strictCompareFlags, customizer) {
+ var length = props.length;
+ if (object == null) {
+ return !length;
+ }
+ var index = -1,
+ noCustomizer = !customizer;
+
+ while (++index < length) {
+ if ((noCustomizer && strictCompareFlags[index])
+ ? values[index] !== object[props[index]]
+ : !hasOwnProperty.call(object, props[index])
+ ) {
+ return false;
+ }
+ }
+ index = -1;
+ while (++index < length) {
+ var key = props[index];
+ if (noCustomizer && strictCompareFlags[index]) {
+ var result = hasOwnProperty.call(object, key);
+ } else {
+ var objValue = object[key],
+ srcValue = values[index];
+
+ result = customizer ? customizer(objValue, srcValue, key) : undefined;
+ if (typeof result == 'undefined') {
+ result = baseIsEqual(srcValue, objValue, customizer, true);
+ }
+ }
+ if (!result) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * The base implementation of `_.map` without support for callback shorthands
+ * or `this` binding.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @returns {Array} Returns the new mapped array.
+ */
+ function baseMap(collection, iteratee) {
+ var result = [];
+ baseEach(collection, function(value, key, collection) {
+ result.push(iteratee(value, key, collection));
+ });
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.matches` which supports specifying whether
+ * `source` should be cloned.
+ *
+ * @private
+ * @param {Object} source The object of property values to match.
+ * @param {boolean} [isCloned] Specify cloning the source object.
+ * @returns {Function} Returns the new function.
+ */
+ function baseMatches(source, isCloned) {
+ var props = keys(source),
+ length = props.length;
+
+ if (length == 1) {
+ var key = props[0],
+ value = source[key];
+
+ if (isStrictComparable(value)) {
+ return function(object) {
+ return object != null && value === object[key] && hasOwnProperty.call(object, key);
+ };
+ }
+ }
+ if (isCloned) {
+ source = baseClone(source, true);
+ }
+ var values = Array(length),
+ strictCompareFlags = Array(length);
+
+ while (length--) {
+ value = source[props[length]];
+ values[length] = value;
+ strictCompareFlags[length] = isStrictComparable(value);
+ }
+ return function(object) {
+ return baseIsMatch(object, props, values, strictCompareFlags);
+ };
+ }
+
+ /**
+ * The base implementation of `_.merge` without support for argument juggling,
+ * multiple sources, and `this` binding `customizer` functions.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @param {Function} [customizer] The function to customize merging properties.
+ * @param {Array} [stackA=[]] Tracks traversed source objects.
+ * @param {Array} [stackB=[]] Associates values with source counterparts.
+ * @returns {Object} Returns the destination object.
+ */
+ function baseMerge(object, source, customizer, stackA, stackB) {
+ var isSrcArr = isLength(source.length) && (isArray(source) || isTypedArray(source));
+
+ (isSrcArr ? arrayEach : baseForOwn)(source, function(srcValue, key, source) {
+ if (isObjectLike(srcValue)) {
+ stackA || (stackA = []);
+ stackB || (stackB = []);
+ return baseMergeDeep(object, source, key, baseMerge, customizer, stackA, stackB);
+ }
+ var value = object[key],
+ result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
+ isCommon = typeof result == 'undefined';
+
+ if (isCommon) {
+ result = srcValue;
+ }
+ if ((isSrcArr || typeof result != 'undefined') &&
+ (isCommon || (result === result ? result !== value : value === value))) {
+ object[key] = result;
+ }
+ });
+ return object;
+ }
+
+ /**
+ * A specialized version of `baseMerge` for arrays and objects which performs
+ * deep merges and tracks traversed objects enabling objects with circular
+ * references to be merged.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @param {string} key The key of the value to merge.
+ * @param {Function} mergeFunc The function to merge values.
+ * @param {Function} [customizer] The function to customize merging properties.
+ * @param {Array} [stackA=[]] Tracks traversed source objects.
+ * @param {Array} [stackB=[]] Associates values with source counterparts.
+ * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
+ */
+ function baseMergeDeep(object, source, key, mergeFunc, customizer, stackA, stackB) {
+ var length = stackA.length,
+ srcValue = source[key];
+
+ while (length--) {
+ if (stackA[length] == srcValue) {
+ object[key] = stackB[length];
+ return;
+ }
+ }
+ var value = object[key],
+ result = customizer ? customizer(value, srcValue, key, object, source) : undefined,
+ isCommon = typeof result == 'undefined';
+
+ if (isCommon) {
+ result = srcValue;
+ if (isLength(srcValue.length) && (isArray(srcValue) || isTypedArray(srcValue))) {
+ result = isArray(value)
+ ? value
+ : (value ? arrayCopy(value) : []);
+ }
+ else if (isPlainObject(srcValue) || isArguments(srcValue)) {
+ result = isArguments(value)
+ ? toPlainObject(value)
+ : (isPlainObject(value) ? value : {});
+ }
+ else {
+ isCommon = false;
+ }
+ }
+ // Add the source value to the stack of traversed objects and associate
+ // it with its merged value.
+ stackA.push(srcValue);
+ stackB.push(result);
+
+ if (isCommon) {
+ // Recursively merge objects and arrays (susceptible to call stack limits).
+ object[key] = mergeFunc(result, srcValue, customizer, stackA, stackB);
+ } else if (result === result ? result !== value : value === value) {
+ object[key] = result;
+ }
+ }
+
+ /**
+ * The base implementation of `_.property` which does not coerce `key` to a string.
+ *
+ * @private
+ * @param {string} key The key of the property to get.
+ * @returns {Function} Returns the new function.
+ */
+ function baseProperty(key) {
+ return function(object) {
+ return object == null ? undefined : object[key];
+ };
+ }
+
+ /**
+ * The base implementation of `_.pullAt` without support for individual
+ * index arguments.
+ *
+ * @private
+ * @param {Array} array The array to modify.
+ * @param {number[]} indexes The indexes of elements to remove.
+ * @returns {Array} Returns the new array of removed elements.
+ */
+ function basePullAt(array, indexes) {
+ var length = indexes.length,
+ result = baseAt(array, indexes);
+
+ indexes.sort(baseCompareAscending);
+ while (length--) {
+ var index = parseFloat(indexes[length]);
+ if (index != previous && isIndex(index)) {
+ var previous = index;
+ splice.call(array, index, 1);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.random` without support for argument juggling
+ * and returning floating-point numbers.
+ *
+ * @private
+ * @param {number} min The minimum possible value.
+ * @param {number} max The maximum possible value.
+ * @returns {number} Returns the random number.
+ */
+ function baseRandom(min, max) {
+ return min + floor(nativeRandom() * (max - min + 1));
+ }
+
+ /**
+ * The base implementation of `_.reduce` and `_.reduceRight` without support
+ * for callback shorthands or `this` binding, which iterates over `collection`
+ * using the provided `eachFunc`.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} iteratee The function invoked per iteration.
+ * @param {*} accumulator The initial value.
+ * @param {boolean} initFromCollection Specify using the first or last element
+ * of `collection` as the initial value.
+ * @param {Function} eachFunc The function to iterate over `collection`.
+ * @returns {*} Returns the accumulated value.
+ */
+ function baseReduce(collection, iteratee, accumulator, initFromCollection, eachFunc) {
+ eachFunc(collection, function(value, index, collection) {
+ accumulator = initFromCollection
+ ? (initFromCollection = false, value)
+ : iteratee(accumulator, value, index, collection)
+ });
+ return accumulator;
+ }
+
+ /**
+ * The base implementation of `setData` without support for hot loop detection.
+ *
+ * @private
+ * @param {Function} func The function to associate metadata with.
+ * @param {*} data The metadata.
+ * @returns {Function} Returns `func`.
+ */
+ var baseSetData = !metaMap ? identity : function(func, data) {
+ metaMap.set(func, data);
+ return func;
+ };
+
+ /**
+ * The base implementation of `_.slice` without an iteratee call guard.
+ *
+ * @private
+ * @param {Array} array The array to slice.
+ * @param {number} [start=0] The start position.
+ * @param {number} [end=array.length] The end position.
+ * @returns {Array} Returns the slice of `array`.
+ */
+ function baseSlice(array, start, end) {
+ var index = -1,
+ length = array.length;
+
+ start = start == null ? 0 : (+start || 0);
+ if (start < 0) {
+ start = -start > length ? 0 : (length + start);
+ }
+ end = (typeof end == 'undefined' || end > length) ? length : (+end || 0);
+ if (end < 0) {
+ end += length;
+ }
+ length = start > end ? 0 : (end - start) >>> 0;
+ start >>>= 0;
+
+ var result = Array(length);
+ while (++index < length) {
+ result[index] = array[index + start];
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.some` without support for callback shorthands
+ * or `this` binding.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function} predicate The function invoked per iteration.
+ * @returns {boolean} Returns `true` if any element passes the predicate check,
+ * else `false`.
+ */
+ function baseSome(collection, predicate) {
+ var result;
+
+ baseEach(collection, function(value, index, collection) {
+ result = predicate(value, index, collection);
+ return !result;
+ });
+ return !!result;
+ }
+
+ /**
+ * The base implementation of `_.uniq` without support for callback shorthands
+ * and `this` binding.
+ *
+ * @private
+ * @param {Array} array The array to inspect.
+ * @param {Function} [iteratee] The function invoked per iteration.
+ * @returns {Array} Returns the new duplicate-value-free array.
+ */
+ function baseUniq(array, iteratee) {
+ var index = -1,
+ indexOf = getIndexOf(),
+ length = array.length,
+ isCommon = indexOf == baseIndexOf,
+ isLarge = isCommon && length >= 200,
+ seen = isLarge && createCache(),
+ result = [];
+
+ if (seen) {
+ indexOf = cacheIndexOf;
+ isCommon = false;
+ } else {
+ isLarge = false;
+ seen = iteratee ? [] : result;
+ }
+ outer:
+ while (++index < length) {
+ var value = array[index],
+ computed = iteratee ? iteratee(value, index, array) : value;
+
+ if (isCommon && value === value) {
+ var seenIndex = seen.length;
+ while (seenIndex--) {
+ if (seen[seenIndex] === computed) {
+ continue outer;
+ }
+ }
+ if (iteratee) {
+ seen.push(computed);
+ }
+ result.push(value);
+ }
+ else if (indexOf(seen, computed) < 0) {
+ if (iteratee || isLarge) {
+ seen.push(computed);
+ }
+ result.push(value);
+ }
+ }
+ return result;
+ }
+
+ /**
+ * The base implementation of `_.values` and `_.valuesIn` which creates an
+ * array of `object` property values corresponding to the property names
+ * returned by `keysFunc`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @param {Array} props The property names to get values for.
+ * @returns {Object} Returns the array of property values.
+ */
+ function baseValues(object, props) {
+ var index = -1,
+ length = props.length,
+ result = Array(length);
+
+ while (++index < length) {
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