/files/lodash/2.4.0/lodash.legacy.js
JavaScript | 1516 lines | 814 code | 141 blank | 561 comment | 293 complexity | 4924cf832aa31e301baace41513bfe6a MD5 | raw file
- /**
- * @license
- * Lo-Dash 2.4.0 (Custom Build) <http://lodash.com/>
- * Build: `lodash legacy -o ./dist/lodash.legacy.js`
- * Copyright 2012-2013 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.5.2 <http://underscorejs.org/LICENSE>
- * Copyright 2009-2013 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
- * Available under MIT license <http://lodash.com/license>
- */
- ;(function() {
- /** Used as a safe reference for `undefined` in pre ES5 environments */
- var undefined;
- /** Used to pool arrays and objects used internally */
- var arrayPool = [],
- objectPool = [];
- /** Used to generate unique IDs */
- var idCounter = 0;
- /** Used internally to indicate various things */
- var indicatorObject = {};
- /** Used to prefix keys to avoid issues with `__proto__` and properties on `Object.prototype` */
- var keyPrefix = +new Date + '';
- /** Used as the size when optimizations are enabled for large arrays */
- var largeArraySize = 75;
- /** Used as the max size of the `arrayPool` and `objectPool` */
- var maxPoolSize = 40;
- /** Used to detect and test whitespace */
- var whitespace = (
- // whitespace
- ' \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 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 ES6 template delimiters
- * http://people.mozilla.org/~jorendorff/es6-draft.html#sec-literals-string-literals
- */
- var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
- /** Used to match regexp flags from their coerced string values */
- var reFlags = /\w*$/;
- /** Used to match "interpolate" template delimiters */
- var reInterpolate = /<%=([\s\S]+?)%>/g;
- /** Used to match leading whitespace and zeros to be removed */
- var reLeadingSpacesAndZeros = RegExp('^[' + whitespace + ']*0+(?=.$)');
- /** Used to ensure capturing order of template delimiters */
- var reNoMatch = /($^)/;
- /** Used to match unescaped characters in compiled string literals */
- var reUnescapedString = /['\n\r\t\u2028\u2029\\]/g;
- /** Used to assign default `context` object properties */
- var contextProps = [
- 'Array', 'Boolean', 'Date', 'Error', 'Function', 'Math', 'Number', 'Object',
- 'RegExp', 'String', '_', 'attachEvent', 'clearTimeout', 'isFinite', 'isNaN',
- 'parseInt', 'setTimeout'
- ];
- /** Used to fix the JScript [[DontEnum]] bug */
- var shadowedProps = [
- 'constructor', 'hasOwnProperty', 'isPrototypeOf', 'propertyIsEnumerable',
- 'toLocaleString', 'toString', 'valueOf'
- ];
- /** Used to make template sourceURLs easier to identify */
- var templateCounter = 0;
- /** `Object#toString` result shortcuts */
- var argsClass = '[object Arguments]',
- arrayClass = '[object Array]',
- boolClass = '[object Boolean]',
- dateClass = '[object Date]',
- errorClass = '[object Error]',
- funcClass = '[object Function]',
- numberClass = '[object Number]',
- objectClass = '[object Object]',
- regexpClass = '[object RegExp]',
- stringClass = '[object String]';
- /** Used to identify object classifications that `_.clone` supports */
- var cloneableClasses = {};
- cloneableClasses[funcClass] = false;
- cloneableClasses[argsClass] = cloneableClasses[arrayClass] =
- cloneableClasses[boolClass] = cloneableClasses[dateClass] =
- cloneableClasses[numberClass] = cloneableClasses[objectClass] =
- cloneableClasses[regexpClass] = cloneableClasses[stringClass] = true;
- /** Used as an internal `_.debounce` options object */
- var debounceOptions = {
- 'leading': false,
- 'maxWait': 0,
- 'trailing': false
- };
- /** Used as the data object for `iteratorTemplate` */
- var iteratorData = {
- 'args': '',
- 'array': null,
- 'bottom': '',
- 'firstArg': '',
- 'init': '',
- 'keys': null,
- 'loop': '',
- 'shadowedProps': null,
- 'support': null,
- 'top': '',
- 'useHas': false
- };
- /** Used to determine if values are of the language type Object */
- var objectTypes = {
- 'boolean': false,
- 'function': true,
- 'object': true,
- 'number': false,
- 'string': false,
- 'undefined': false
- };
- /** Used to escape characters for inclusion in compiled string literals */
- var stringEscapes = {
- '\\': '\\',
- "'": "'",
- '\n': 'n',
- '\r': 'r',
- '\t': 't',
- '\u2028': 'u2028',
- '\u2029': 'u2029'
- };
- /** Used as a reference to the global object */
- var root = (objectTypes[typeof 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 the popular CommonJS extension `module.exports` */
- var moduleExports = freeModule && freeModule.exports === freeExports && freeExports;
- /** Detect free variable `global` from Node.js or Browserified code and use it as `root` */
- var freeGlobal = objectTypes[typeof global] && global;
- if (freeGlobal && (freeGlobal.global === freeGlobal || freeGlobal.window === freeGlobal)) {
- root = freeGlobal;
- }
- /*--------------------------------------------------------------------------*/
- /**
- * The base implementation of `_.indexOf` without support for binary searches
- * or `fromIndex` constraints.
- *
- * @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 or `-1`.
- */
- function baseIndexOf(array, value, fromIndex) {
- var index = (fromIndex || 0) - 1,
- length = array ? array.length : 0;
- while (++index < length) {
- if (array[index] === value) {
- return index;
- }
- }
- return -1;
- }
- /**
- * An implementation of `_.contains` for cache objects that mimics the return
- * signature of `_.indexOf` by returning `0` if the value is found, else `-1`.
- *
- * @private
- * @param {Object} cache The cache object to inspect.
- * @param {*} value The value to search for.
- * @returns {number} Returns `0` if `value` is found, else `-1`.
- */
- function cacheIndexOf(cache, value) {
- var type = typeof value;
- cache = cache.cache;
- if (type == 'boolean' || value == null) {
- return cache[value] ? 0 : -1;
- }
- if (type != 'number' && type != 'string') {
- type = 'object';
- }
- var key = type == 'number' ? value : keyPrefix + value;
- cache = (cache = cache[type]) && cache[key];
- return type == 'object'
- ? (cache && baseIndexOf(cache, value) > -1 ? 0 : -1)
- : (cache ? 0 : -1);
- }
- /**
- * Adds a given value to the corresponding cache object.
- *
- * @private
- * @param {*} value The value to add to the cache.
- */
- function cachePush(value) {
- var cache = this.cache,
- type = typeof value;
- if (type == 'boolean' || value == null) {
- cache[value] = true;
- } else {
- if (type != 'number' && type != 'string') {
- type = 'object';
- }
- var key = type == 'number' ? value : keyPrefix + value,
- typeCache = cache[type] || (cache[type] = {});
- if (type == 'object') {
- (typeCache[key] || (typeCache[key] = [])).push(value);
- } else {
- typeCache[key] = true;
- }
- }
- }
- /**
- * Used by `_.max` and `_.min` as the default callback when a given
- * collection is a string value.
- *
- * @private
- * @param {string} value The character to inspect.
- * @returns {number} Returns the code unit of given character.
- */
- function charAtCallback(value) {
- return value.charCodeAt(0);
- }
- /**
- * Used by `sortBy` to compare transformed `collection` elements, stable sorting
- * them in ascending order.
- *
- * @private
- * @param {Object} a The object to compare to `b`.
- * @param {Object} b The object to compare to `a`.
- * @returns {number} Returns the sort order indicator of `1` or `-1`.
- */
- function compareAscending(a, b) {
- var ac = a.criteria,
- bc = b.criteria,
- index = -1,
- length = ac.length;
- while (++index < length) {
- var value = ac[index],
- other = bc[index];
- if (value !== other) {
- if (value > other || typeof value == 'undefined') {
- return 1;
- }
- if (value < other || typeof other == 'undefined') {
- return -1;
- }
- }
- }
- // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
- // that causes it, under certain circumstances, to return the same value for
- // `a` and `b`. See https://github.com/jashkenas/underscore/pull/1247
- //
- // This also ensures a stable sort in V8 and other engines.
- // See http://code.google.com/p/v8/issues/detail?id=90
- return a.index - b.index;
- }
- /**
- * Creates a cache object to optimize linear searches of large arrays.
- *
- * @private
- * @param {Array} [array=[]] The array to search.
- * @returns {null|Object} Returns the cache object or `null` if caching should not be used.
- */
- function createCache(array) {
- var index = -1,
- length = array.length,
- first = array[0],
- mid = array[(length / 2) | 0],
- last = array[length - 1];
- if (first && typeof first == 'object' &&
- mid && typeof mid == 'object' && last && typeof last == 'object') {
- return false;
- }
- var cache = getObject();
- cache['false'] = cache['null'] = cache['true'] = cache['undefined'] = false;
- var result = getObject();
- result.array = array;
- result.cache = cache;
- result.push = cachePush;
- while (++index < length) {
- result.push(array[index]);
- }
- return result;
- }
- /**
- * Used by `template` to escape characters for inclusion in compiled
- * string literals.
- *
- * @private
- * @param {string} match The matched character to escape.
- * @returns {string} Returns the escaped character.
- */
- function escapeStringChar(match) {
- return '\\' + stringEscapes[match];
- }
- /**
- * Gets an array from the array pool or creates a new one if the pool is empty.
- *
- * @private
- * @returns {Array} The array from the pool.
- */
- function getArray() {
- return arrayPool.pop() || [];
- }
- /**
- * Gets an object from the object pool or creates a new one if the pool is empty.
- *
- * @private
- * @returns {Object} The object from the pool.
- */
- function getObject() {
- return objectPool.pop() || {
- 'array': null,
- 'cache': null,
- 'criteria': null,
- 'false': false,
- 'index': 0,
- 'null': false,
- 'number': null,
- 'object': null,
- 'push': null,
- 'string': null,
- 'true': false,
- 'undefined': false,
- 'value': null
- };
- }
- /**
- * Checks if `value` is a DOM node in IE < 9.
- *
- * @private
- * @param {*} value The value to check.
- * @returns {boolean} Returns `true` if the `value` is a DOM node, else `false`.
- */
- function isNode(value) {
- // IE < 9 presents DOM nodes as `Object` objects except they have `toString`
- // methods that are `typeof` "string" and still can coerce nodes to strings
- return typeof value.toString != 'function' && typeof (value + '') == 'string';
- }
- /**
- * Releases the given array back to the array pool.
- *
- * @private
- * @param {Array} [array] The array to release.
- */
- function releaseArray(array) {
- array.length = 0;
- if (arrayPool.length < maxPoolSize) {
- arrayPool.push(array);
- }
- }
- /**
- * Releases the given object back to the object pool.
- *
- * @private
- * @param {Object} [object] The object to release.
- */
- function releaseObject(object) {
- var cache = object.cache;
- if (cache) {
- releaseObject(cache);
- }
- object.array = object.cache = object.criteria = object.object = object.number = object.string = object.value = null;
- if (objectPool.length < maxPoolSize) {
- objectPool.push(object);
- }
- }
- /**
- * Slices the `collection` from the `start` index up to, but not including,
- * the `end` index.
- *
- * Note: This function is used instead of `Array#slice` to support node lists
- * in IE < 9 and to ensure dense arrays are returned.
- *
- * @private
- * @param {Array|Object|string} collection The collection to slice.
- * @param {number} start The start index.
- * @param {number} end The end index.
- * @returns {Array} Returns the new array.
- */
- function slice(array, start, end) {
- start || (start = 0);
- if (typeof end == 'undefined') {
- end = array ? array.length : 0;
- }
- var index = -1,
- length = end - start || 0,
- result = Array(length < 0 ? 0 : length);
- while (++index < length) {
- result[index] = array[start + index];
- }
- return result;
- }
- /*--------------------------------------------------------------------------*/
- /**
- * Create a new `lodash` function using the given context object.
- *
- * @static
- * @memberOf _
- * @category Utilities
- * @param {Object} [context=root] The context object.
- * @returns {Function} Returns the `lodash` function.
- */
- 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 http://es5.github.io/#x11.1.5.
- context = context ? _.defaults(root.Object(), context, _.pick(root, contextProps)) : root;
- /** Native constructor references */
- var Array = context.Array,
- Boolean = context.Boolean,
- 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 `Array` method references.
- *
- * Normally `Array.prototype` would suffice, however, using an array literal
- * avoids issues in Narwhal.
- */
- var arrayRef = [];
- /** Used for native method references */
- var errorProto = Error.prototype,
- objectProto = Object.prototype,
- stringProto = String.prototype;
- /** Used to restore the original `_` reference in `noConflict` */
- var oldDash = context._;
- /** Used to resolve the internal [[Class]] of values */
- var toString = objectProto.toString;
- /** Native method shortcuts */
- var ceil = Math.ceil,
- clearTimeout = context.clearTimeout,
- floor = Math.floor,
- hasOwnProperty = objectProto.hasOwnProperty,
- push = arrayRef.push,
- propertyIsEnumerable = objectProto.propertyIsEnumerable,
- setTimeout = context.setTimeout,
- splice = arrayRef.splice;
- /* Native method shortcuts for methods with the same name as other `lodash` methods */
- var nativeIsFinite = context.isFinite,
- nativeIsNaN = context.isNaN,
- nativeMax = Math.max,
- nativeMin = Math.min,
- nativeParseInt = context.parseInt,
- nativeRandom = Math.random;
- /** Used to lookup a built-in constructor by [[Class]] */
- var ctorByClass = {};
- ctorByClass[arrayClass] = Array;
- ctorByClass[boolClass] = Boolean;
- ctorByClass[dateClass] = Date;
- ctorByClass[funcClass] = Function;
- ctorByClass[objectClass] = Object;
- ctorByClass[numberClass] = Number;
- ctorByClass[regexpClass] = RegExp;
- ctorByClass[stringClass] = String;
- /** Used to avoid iterating non-enumerable properties in IE < 9 */
- var nonEnumProps = {};
- nonEnumProps[arrayClass] = nonEnumProps[dateClass] = nonEnumProps[numberClass] = { 'constructor': true, 'toLocaleString': true, 'toString': true, 'valueOf': true };
- nonEnumProps[boolClass] = nonEnumProps[stringClass] = { 'constructor': true, 'toString': true, 'valueOf': true };
- nonEnumProps[errorClass] = nonEnumProps[funcClass] = nonEnumProps[regexpClass] = { 'constructor': true, 'toString': true };
- nonEnumProps[objectClass] = { 'constructor': true };
- (function() {
- var length = shadowedProps.length;
- while (length--) {
- var key = shadowedProps[length];
- for (var className in nonEnumProps) {
- if (hasOwnProperty.call(nonEnumProps, className) && !hasOwnProperty.call(nonEnumProps[className], key)) {
- nonEnumProps[className][key] = false;
- }
- }
- }
- }());
- /*--------------------------------------------------------------------------*/
- /**
- * Creates a `lodash` object which wraps the given value to enable intuitive
- * method chaining.
- *
- * In addition to Lo-Dash methods, wrappers also have the following `Array` methods:
- * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
- * and `unshift`
- *
- * Chaining is supported in custom builds as long as the `value` method is
- * implicitly or explicitly included in the build.
- *
- * The chainable wrapper functions are:
- * `after`, `assign`, `bind`, `bindAll`, `bindKey`, `chain`, `compact`,
- * `compose`, `concat`, `countBy`, `create`, `createCallback`, `curry`,
- * `debounce`, `defaults`, `defer`, `delay`, `difference`, `filter`, `flatten`,
- * `forEach`, `forEachRight`, `forIn`, `forInRight`, `forOwn`, `forOwnRight`,
- * `functions`, `groupBy`, `indexBy`, `initial`, `intersection`, `invert`,
- * `invoke`, `keys`, `map`, `max`, `memoize`, `merge`, `min`, `object`, `omit`,
- * `once`, `pairs`, `partial`, `partialRight`, `pick`, `pluck`, `pull`, `push`,
- * `range`, `reject`, `remove`, `rest`, `reverse`, `shuffle`, `slice`, `sort`,
- * `sortBy`, `splice`, `tap`, `throttle`, `times`, `toArray`, `transform`,
- * `union`, `uniq`, `unshift`, `unzip`, `values`, `where`, `without`, `wrap`,
- * and `zip`
- *
- * The non-chainable wrapper functions are:
- * `clone`, `cloneDeep`, `contains`, `escape`, `every`, `find`, `findIndex`,
- * `findKey`, `findLast`, `findLastIndex`, `findLastKey`, `has`, `identity`,
- * `indexOf`, `isArguments`, `isArray`, `isBoolean`, `isDate`, `isElement`,
- * `isEmpty`, `isEqual`, `isFinite`, `isFunction`, `isNaN`, `isNull`, `isNumber`,
- * `isObject`, `isPlainObject`, `isRegExp`, `isString`, `isUndefined`, `join`,
- * `lastIndexOf`, `mixin`, `noConflict`, `parseInt`, `pop`, `random`, `reduce`,
- * `reduceRight`, `result`, `shift`, `size`, `some`, `sortedIndex`, `runInContext`,
- * `template`, `unescape`, `uniqueId`, and `value`
- *
- * The wrapper functions `first` and `last` return wrapped values when `n` is
- * provided, otherwise they return unwrapped values.
- *
- * Explicit chaining can be enabled by using the `_.chain` method.
- *
- * @name _
- * @constructor
- * @category Chaining
- * @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, num) {
- * return sum + num;
- * });
- * // => 6
- *
- * // returns a wrapped value
- * var squares = wrapped.map(function(num) {
- * return num * num;
- * });
- *
- * _.isArray(squares);
- * // => false
- *
- * _.isArray(squares.value());
- * // => true
- */
- function lodash(value) {
- // don't wrap if already wrapped, even if wrapped by a different `lodash` constructor
- return (value && typeof value == 'object' && !isArray(value) && hasOwnProperty.call(value, '__wrapped__'))
- ? value
- : new lodashWrapper(value);
- }
- /**
- * A fast path for creating `lodash` wrapper objects.
- *
- * @private
- * @param {*} value The value to wrap in a `lodash` instance.
- * @param {boolean} chainAll A flag to enable chaining for all methods
- * @returns {Object} Returns a `lodash` instance.
- */
- function lodashWrapper(value, chainAll) {
- this.__chain__ = !!chainAll;
- this.__wrapped__ = value;
- }
- // ensure `new lodashWrapper` is an instance of `lodash`
- lodashWrapper.prototype = lodash.prototype;
- /**
- * An object used to flag environments features.
- *
- * @static
- * @memberOf _
- * @type Object
- */
- var support = lodash.support = {};
- (function() {
- var ctor = function() { this.x = 1; },
- object = { '0': 1, 'length': 1 },
- props = [];
- ctor.prototype = { 'valueOf': 1, 'y': 1 };
- for (var key in new ctor) { props.push(key); }
- for (key in arguments) { }
- /**
- * Detect if an `arguments` object's [[Class]] is resolvable (all but Firefox < 4, IE < 9).
- *
- * @memberOf _.support
- * @type boolean
- */
- support.argsClass = false;
- /**
- * Detect if `arguments` objects are `Object` objects (all but Narwhal and Opera < 10.5).
- *
- * @memberOf _.support
- * @type boolean
- */
- support.argsObject = arguments.constructor == Object && !(arguments instanceof Array);
- /**
- * Detect if `name` or `message` properties of `Error.prototype` are
- * enumerable by default. (IE < 9, Safari < 5.1)
- *
- * @memberOf _.support
- * @type boolean
- */
- support.enumErrorProps = propertyIsEnumerable.call(errorProto, 'message') || propertyIsEnumerable.call(errorProto, 'name');
- /**
- * Detect if `prototype` properties are enumerable by default.
- *
- * Firefox < 3.6, Opera > 9.50 - Opera < 11.60, and Safari < 5.1
- * (if the prototype or a property on the prototype has been set)
- * incorrectly sets a function's `prototype` property [[Enumerable]]
- * value to `true`.
- *
- * @memberOf _.support
- * @type boolean
- */
- support.enumPrototypes = propertyIsEnumerable.call(ctor, 'prototype');
- /**
- * Detect if `arguments` object indexes are non-enumerable
- * (Firefox < 4, IE < 9, PhantomJS, Safari < 5.1).
- *
- * @memberOf _.support
- * @type boolean
- */
- support.nonEnumArgs = key != 0;
- /**
- * Detect if properties shadowing those on `Object.prototype` are non-enumerable.
- *
- * In IE < 9 an objects own properties, shadowing non-enumerable ones, are
- * made non-enumerable as well (a.k.a the JScript [[DontEnum]] bug).
- *
- * @memberOf _.support
- * @type boolean
- */
- support.nonEnumShadows = !/valueOf/.test(props);
- /**
- * Detect if own properties are iterated after inherited properties (all but IE < 9).
- *
- * @memberOf _.support
- * @type boolean
- */
- support.ownLast = props[0] != 'x';
- /**
- * Detect if `Array#shift` and `Array#splice` augment array-like objects correctly.
- *
- * Firefox < 10, IE compatibility mode, and IE < 9 have buggy Array `shift()`
- * and `splice()` functions that fail to remove the last element, `value[0]`,
- * of array-like objects even though the `length` property is set to `0`.
- * The `shift()` method is buggy in IE 8 compatibility mode, while `splice()`
- * is buggy regardless of mode in IE < 9 and buggy in compatibility mode in IE 9.
- *
- * @memberOf _.support
- * @type boolean
- */
- support.spliceObjects = (arrayRef.splice.call(object, 0, 1), !object[0]);
- /**
- * Detect lack of support for accessing string characters by index.
- *
- * IE < 8 can't access characters by index and IE 8 can only access
- * characters by index on string literals.
- *
- * @memberOf _.support
- * @type boolean
- */
- support.unindexedChars = ('x'[0] + Object('x')[0]) != 'xx';
- /**
- * Detect if a DOM node's [[Class]] is resolvable (all but IE < 9)
- * and that the JS engine errors when attempting to coerce an object to
- * a string without a `toString` function.
- *
- * @memberOf _.support
- * @type boolean
- */
- try {
- support.nodeClass = !(toString.call(document) == objectClass && !({ 'toString': 0 } + ''));
- } catch(e) {
- support.nodeClass = true;
- }
- }(1));
- /**
- * By default, the template delimiters used by Lo-Dash are similar to 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': /<%-([\s\S]+?)%>/g,
- /**
- * Used to detect code to be evaluated.
- *
- * @memberOf _.templateSettings
- * @type RegExp
- */
- 'evaluate': /<%([\s\S]+?)%>/g,
- /**
- * 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
- }
- };
- /*--------------------------------------------------------------------------*/
- /**
- * The template used to create iterator functions.
- *
- * @private
- * @param {Object} data The data object used to populate the text.
- * @returns {string} Returns the interpolated text.
- */
- var iteratorTemplate = function(obj) {
- var __p = 'var index, iterable = ' +
- (obj.firstArg) +
- ', result = ' +
- (obj.init) +
- ';\nif (!iterable) return result;\n' +
- (obj.top) +
- ';';
- if (obj.array) {
- __p += '\nvar length = iterable.length; index = -1;\nif (' +
- (obj.array) +
- ') { ';
- if (support.unindexedChars) {
- __p += '\n if (isString(iterable)) {\n iterable = iterable.split(\'\')\n } ';
- }
- __p += '\n while (++index < length) {\n ' +
- (obj.loop) +
- ';\n }\n}\nelse { ';
- } else if (support.nonEnumArgs) {
- __p += '\n var length = iterable.length; index = -1;\n if (length && isArguments(iterable)) {\n while (++index < length) {\n index += \'\';\n ' +
- (obj.loop) +
- ';\n }\n } else { ';
- }
- if (support.enumPrototypes) {
- __p += '\n var skipProto = typeof iterable == \'function\';\n ';
- }
- if (support.enumErrorProps) {
- __p += '\n var skipErrorProps = iterable === errorProto || iterable instanceof Error;\n ';
- }
- var conditions = []; if (support.enumPrototypes) { conditions.push('!(skipProto && index == "prototype")'); } if (support.enumErrorProps) { conditions.push('!(skipErrorProps && (index == "message" || index == "name"))'); }
- __p += '\n for (index in iterable) {\n';
- if (obj.useHas) { conditions.push("hasOwnProperty.call(iterable, index)"); } if (conditions.length) {
- __p += ' if (' +
- (conditions.join(' && ')) +
- ') {\n ';
- }
- __p +=
- (obj.loop) +
- '; ';
- if (conditions.length) {
- __p += '\n }';
- }
- __p += '\n } ';
- if (support.nonEnumShadows) {
- __p += '\n\n if (iterable !== objectProto) {\n var ctor = iterable.constructor,\n isProto = iterable === (ctor && ctor.prototype),\n className = iterable === stringProto ? stringClass : iterable === errorProto ? errorClass : toString.call(iterable),\n nonEnum = nonEnumProps[className];\n ';
- for (k = 0; k < 7; k++) {
- __p += '\n index = \'' +
- (obj.shadowedProps[k]) +
- '\';\n if ((!(isProto && nonEnum[index]) && hasOwnProperty.call(iterable, index))';
- if (!obj.useHas) {
- __p += ' || (!nonEnum[index] && iterable[index] !== objectProto[index])';
- }
- __p += ') {\n ' +
- (obj.loop) +
- ';\n } ';
- }
- __p += '\n } ';
- }
- if (obj.array || support.nonEnumArgs) {
- __p += '\n}';
- }
- __p +=
- (obj.bottom) +
- ';\nreturn result';
- return __p
- };
- /*--------------------------------------------------------------------------*/
- /**
- * The base implementation of `_.bind` that creates the bound function and
- * sets its meta data.
- *
- * @private
- * @param {Array} bindData The bind data array.
- * @returns {Function} Returns the new bound function.
- */
- function baseBind(bindData) {
- var func = bindData[0],
- partialArgs = bindData[2],
- thisArg = bindData[4];
- function bound() {
- // `Function#bind` spec
- // http://es5.github.io/#x15.3.4.5
- if (partialArgs) {
- var args = partialArgs.slice();
- push.apply(args, arguments);
- }
- // mimic the constructor's `return` behavior
- // http://es5.github.io/#x13.2.2
- if (this instanceof bound) {
- // ensure `new bound` is an instance of `func`
- var thisBinding = baseCreate(func.prototype),
- result = func.apply(thisBinding, args || arguments);
- return isObject(result) ? result : thisBinding;
- }
- return func.apply(thisArg, args || arguments);
- }
- return bound;
- }
- /**
- * The base implementation of `_.clone` without argument juggling or support
- * for `thisArg` binding.
- *
- * @private
- * @param {*} value The value to clone.
- * @param {boolean} [isDeep=false] Specify a deep clone.
- * @param {Function} [callback] The function to customize cloning values.
- * @param {Array} [stackA=[]] Tracks traversed source objects.
- * @param {Array} [stackB=[]] Associates clones with source counterparts.
- * @returns {*} Returns the cloned value.
- */
- function baseClone(value, isDeep, callback, stackA, stackB) {
- if (callback) {
- var result = callback(value);
- if (typeof result != 'undefined') {
- return result;
- }
- }
- // inspect [[Class]]
- var isObj = isObject(value);
- if (isObj) {
- var className = toString.call(value);
- if (!cloneableClasses[className] || (!support.nodeClass && isNode(value))) {
- return value;
- }
- var ctor = ctorByClass[className];
- switch (className) {
- case boolClass:
- case dateClass:
- return new ctor(+value);
- case numberClass:
- case stringClass:
- return new ctor(value);
- case regexpClass:
- result = ctor(value.source, reFlags.exec(value));
- result.lastIndex = value.lastIndex;
- return result;
- }
- } else {
- return value;
- }
- var isArr = isArray(value);
- if (isDeep) {
- // check for circular references and return corresponding clone
- var initedStack = !stackA;
- stackA || (stackA = getArray());
- stackB || (stackB = getArray());
- var length = stackA.length;
- while (length--) {
- if (stackA[length] == value) {
- return stackB[length];
- }
- }
- result = isArr ? ctor(value.length) : {};
- }
- else {
- result = isArr ? slice(value) : assign({}, value);
- }
- // add array properties assigned by `RegExp#exec`
- if (isArr) {
- if (hasOwnProperty.call(value, 'index')) {
- result.index = value.index;
- }
- if (hasOwnProperty.call(value, 'input')) {
- result.input = value.input;
- }
- }
- // exit for shallow clone
- if (!isDeep) {
- return result;
- }
- // 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 ? baseEach : forOwn)(value, function(objValue, key) {
- result[key] = baseClone(objValue, isDeep, callback, stackA, stackB);
- });
- if (initedStack) {
- releaseArray(stackA);
- releaseArray(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 `_.createCallback` without support for creating
- * "_.pluck" or "_.where" style callbacks.
- *
- * @private
- * @param {*} [func=identity] The value to convert to a callback.
- * @param {*} [thisArg] The `this` binding of the created callback.
- * @param {number} [argCount] The number of arguments the callback accepts.
- * @returns {Function} Returns a callback function.
- */
- function baseCreateCallback(func, thisArg, argCount) {
- if (typeof func != 'function') {
- return identity;
- }
- // exit early for no `thisArg` or already bound by `Function#bind`
- if (typeof thisArg == 'undefined' || !('prototype' in func)) {
- return func;
- }
- switch (argCount) {
- case 1: return function(value) {
- return func.call(thisArg, value);
- };
- case 2: return function(a, b) {
- return func.call(thisArg, a, b);
- };
- case 3: return function(value, index, collection) {
- return func.call(thisArg, value, index, collection);
- };
- case 4: return function(accumulator, value, index, collection) {
- return func.call(thisArg, accumulator, value, index, collection);
- };
- }
- return bind(func, thisArg);
- }
- /**
- * The base implementation of `createWrapper` that creates the wrapper and
- * sets its meta data.
- *
- * @private
- * @param {Array} bindData The bind data array.
- * @returns {Function} Returns the new function.
- */
- function baseCreateWrapper(bindData) {
- var func = bindData[0],
- bitmask = bindData[1],
- partialArgs = bindData[2],
- partialRightArgs = bindData[3],
- thisArg = bindData[4],
- arity = bindData[5];
- var isBind = bitmask & 1,
- isBindKey = bitmask & 2,
- isCurry = bitmask & 4,
- isCurryBound = bitmask & 8,
- key = func;
- function bound() {
- var thisBinding = isBind ? thisArg : this;
- if (partialArgs) {
- var args = partialArgs.slice();
- push.apply(args, arguments);
- }
- if (partialRightArgs || isCurry) {
- args || (args = slice(arguments));
- if (partialRightArgs) {
- push.apply(args, partialRightArgs);
- }
- if (isCurry && args.length < arity) {
- bitmask |= 16 & ~32;
- return baseCreateWrapper([func, (isCurryBound ? bitmask : bitmask & ~3), args, null, thisArg, arity]);
- }
- }
- args || (args = arguments);
- if (isBindKey) {
- func = thisBinding[key];
- }
- if (this instanceof bound) {
- thisBinding = baseCreate(func.prototype);
- var result = func.apply(thisBinding, args);
- return isObject(result) ? result : thisBinding;
- }
- return func.apply(thisBinding, args);
- }
- return bound;
- }
- /**
- * The base implementation of `_.difference` that accepts a single array
- * of values to exclude.
- *
- * @private
- * @param {Array} array The array to process.
- * @param {Array} [values] The array of values to exclude.
- * @returns {Array} Returns a new array of filtered values.
- */
- function baseDifference(array, values) {
- var index = -1,
- indexOf = getIndexOf(),
- length = array ? array.length : 0,
- isLarge = length >= largeArraySize && indexOf === baseIndexOf,
- result = [];
- if (isLarge) {
- var cache = createCache(values);
- if (cache) {
- indexOf = cacheIndexOf;
- values = cache;
- } else {
- isLarge = false;
- }
- }
- while (++index < length) {
- var value = array[index];
- if (indexOf(values, value) < 0) {
- result.push(value);
- }
- }
- if (isLarge) {
- releaseObject(values);
- }
- return result;
- }
- /**
- * The base implementation of `_.flatten` without support for callback
- * shorthands or `thisArg` binding.
- *
- * @private
- * @param {Array} array The array to flatten.
- * @param {boolean} [isShallow=false] A flag to restrict flattening to a single level.
- * @param {boolean} [isStrict=false] A flag to restrict flattening to arrays and `arguments` objects.
- * @param {number} [fromIndex=0] The index to start from.
- * @returns {Array} Returns a new flattened array.
- */
- function baseFlatten(array, isShallow, isStrict, fromIndex) {
- var index = (fromIndex || 0) - 1,
- length = array ? array.length : 0,
- result = [];
- while (++index < length) {
- var value = array[index];
- if (value && typeof value == 'object' && typeof value.length == 'number'
- && (isArray(value) || isArguments(value))) {
- // recursively flatten arrays (susceptible to call stack limits)
- if (!isShallow) {
- value = baseFlatten(value, isShallow, isStrict);
- }
- var valIndex = -1,
- valLength = value.length,
- resIndex = result.length;
- result.length += valLength;
- while (++valIndex < valLength) {
- result[resIndex++] = value[valIndex];
- }
- } else if (!isStrict) {
- result.push(value);
- }
- }
- return result;
- }
- /**
- * The base implementation of `_.isEqual`, without support for `thisArg` binding,
- * that allows partial "_.where" style comparisons.
- *
- * @private
- * @param {*} a The value to compare.
- * @param {*} b The other value to compare.
- * @param {Function} [callback] The function to customize comparing values.
- * @param {Function} [isWhere=false] A flag to indicate performing partial comparisons.
- * @param {Array} [stackA=[]] Tracks traversed `a` objects.
- * @param {Array} [stackB=[]] Tracks traversed `b` objects.
- * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
- */
- function baseIsEqual(a, b, callback, isWhere, stackA, stackB) {
- // used to indicate that when comparing objects, `a` has at least the properties of `b`
- if (callback) {
- var result = callback(a, b);
- if (typeof result != 'undefined') {
- return !!result;
- }
- }
- // exit early for identical values
- if (a === b) {
- // treat `+0` vs. `-0` as not equal
- return a !== 0 || (1 / a == 1 / b);
- }
- var type = typeof a,
- otherType = typeof b;
- // exit early for unlike primitive values
- if (a === a &&
- !(a && objectTypes[type]) &&
- !(b && objectTypes[otherType])) {
- return false;
- }
- // exit early for `null` and `undefined` avoiding ES3's Function#call behavior
- // http://es5.github.io/#x15.3.4.4
- if (a == null || b == null) {
- return a === b;
- }
- // compare [[Class]] names
- var className = toString.call(a),
- otherClass = toString.call(b);
- if (className == argsClass) {
- className = objectClass;
- }
- if (otherClass == argsClass) {
- otherClass = objectClass;
- }
- if (className != otherClass) {
- return false;
- }
- switch (className) {
- case boolClass:
- case dateClass:
- // coerce dates and booleans to numbers, dates to milliseconds and booleans
- // to `1` or `0` treating invalid dates coerced to `NaN` as not equal
- return +a == +b;
- case numberClass:
- // treat `NaN` vs. `NaN` as equal
- return (a != +a)
- ? b != +b
- // but treat `+0` vs. `-0` as not equal
- : (a == 0 ? (1 / a == 1 / b) : a == +b);
- case regexpClass:
- case stringClass:
- // coerce regexes to strings (http://es5.github.io/#x15.10.6.4)
- // treat string primitives and their corresponding object instances as equal
- return a == String(b);
- }
- var isArr = className == arrayClass;
- if (!isArr) {
- // unwrap any `lodash` wrapped values
- var aWrapped = hasOwnProperty.call(a, '__wrapped__'),
- bWrapped = hasOwnProperty.call(b, '__wrapped__');
- if (aWrapped || bWrapped) {
- return baseIsEqual(aWrapped ? a.__wrapped__ : a, bWrapped ? b.__wrapped__ : b, callback, isWhere, stackA, stackB);
- }
- // exit for functions and DOM nodes
- if (className != objectClass || (!support.nodeClass && (isNode(a) || isNode(b)))) {
- return false;
- }
- // in older versions of Opera, `arguments` objects have `Array` constructors
- var ctorA = !support.argsObject && isArguments(a) ? Object : a.constructor,
- ctorB = !support.argsObject && isArguments(b) ? Object : b.constructor;
- // non `Object` object instances with different constructors are not equal
- if (ctorA != ctorB &&
- !(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
- ('constructor' in a && 'constructor' in b)
- ) {
- return false;
- }
- }
- // assume cyclic structures are equal
- // the algorithm for detecting cyclic structures is adapted from ES 5.1
- // section 15.12.3, abstract operation `JO` (http://es5.github.io/#x15.12.3)
- var initedStack = !stackA;
- stackA || (stackA = getArray());
- stackB || (stackB = getArray());
- var length = stackA.length;
- while (length--) {
- if (stackA[length] == a) {
- return stackB[length] == b;
- }
- }
- var size = 0;
- result = true;
- // add `a` and `b` to the stack of traversed objects
- stackA.push(a);
- stackB.push(b);
- // recursively compare objects and arrays (susceptible to call stack limits)
- if (isArr) {
- length = a.length;
- size = b.length;
- // compare lengths to determine if a deep comparison is necessary
- result = size == a.length;
- if (!result && !isWhere) {
- return result;
- }
- // deep compare the contents, ignoring non-numeric properties
- while (size--) {
- var index = length,
- value = b[size];
- if (isWhere) {
- while (index--) {
- if ((result = baseIsEqual(a[index], value, callback, isWhere, stackA, stackB))) {
- break;
- }
- }
- } else if (!(result = baseIsEqual(a[size], value, callback, isWhere, stackA, stackB))) {
- break;
- }
- }
- return result;
- }
- // deep compare objects using `forIn`, instead of `forOwn`, to avoid `Object.keys`
- // which, in this case, is more costly
- forIn(b, function(value, key, b) {
- if (hasOwnProperty.call(b, key)) {
- // count the number of properties.
- size++;
- // deep compare each property value.
- return (result = hasOwnProperty.call(a, key) && baseIsEqual(a[key], value, callback, isWhere, stackA, stackB));
- }
- });
- if (result && !isWhere) {
- // ensure both objects have the same number of properties
- forIn(a, function(value, key, a) {
- if (hasOwnProperty.call(a, key)) {
- // `size` will be `-1` if `a` has more properties than `b`
- return (result = --size > -1);
- }
- });
- }
- if (initedStack) {
- releaseArray(stackA);
- releaseArray(stackB);
- }
- return result;
- }
- /**
- * The base implementation of `_.merge` without argument juggling or support
- * for `thisArg` binding.
- *
- * @private
- * @param {Object} object The destination object.
- * @param {Object} source The source object.
- * @param {Function} [callback] The function to customize merging properties.
- * @param {Array} [stackA=[]] Tracks traversed source objects.
- * @param {Array} [stackB=[]] Associates values with source counterparts.
- */
- function baseMerge(object, source, callback, stackA, stackB) {
- (isArray(source) ? forEach : forOwn)(source, function(source, key) {
- var found,
- isArr,
- result = source,
- value = object[key];
- if (source && ((isArr = isArray(source)) || isPlainObject(source))) {
- // avoid merging previously merged cyclic sources
- var stackLength = stackA.length;
- while (stackLength--) {
- if ((found = stackA[stackLength] == source)) {
- value = stackB[stackLength];
- break;
- }
- }
- if (!found) {
- var isShallow;
- if (callback) {
- result = callback(value, source);
- if ((isShallow = typeof result != 'undefined')) {
- value = result;
- }
- }
- if (!isShallow) {
- value = isArr
- ? (isArray(value) ? value : [])
- : (isPlainObject(value) ? value : {});
- }
- // add `source` and associated `value` to the stack of traversed objects
- stackA.push(source);
- stackB.push(value);
- // recursively merge objects and arrays (susceptible to call stack limits)
- if (!isShallow) {
- baseMerge(value, source, callback, stackA, stackB);
- }
- }
- }
- else {
- if (callback) {
- result = callback(value, source);
- if (typeof result == 'undefined') {
- result = source;
- }
- }
- if (typeof result != 'undefined') {
- value = result;
- }
- }
- object[key] = value;
- });
- }
- /**
- * The base implementation of `_.random` without argument juggling or support
- * for returning floating-point numbers.
- *
- * @private
- * @param {number} min The minimum possible value.
- * @param {number} max The maximum possible value.
- * @returns {number} Returns a random number.
- */
- function baseRandom(min, max) {
- return min + floor(nativeRandom() * (max - min + 1));
- }
- /**
- * The base implementation of `_.uniq` without support for callback shorthands
- * or `thisArg` binding.
- *
- * @private
- * @param {Array} array The array to process.
- * @param {boolean} [isSorted=false] A flag to indicate that `array` is sorted.
- * @param {Function} [callback] The function called per iteration.
- * @returns {Array} Returns a duplicate-value-free array.
- */
- function baseUniq(array, isSorted, callback) {
- var index = -1,
- indexOf = getIndexOf(),
- length = array ? array.length : 0,
- result = [];
- var isLarge = !isSorted && length >= largeArraySize && indexOf === baseIndexOf,
- seen = (callback || isLarge) ? getArray() : result;
- if (isLarge) {
- var cache = createCache(seen);
- if (cache) {
- indexOf = cacheIndexOf;
- seen = cache;
- } else {
- isLarge = false;
- seen = callback ? seen : (releaseArray(seen), result);
- }
- }
- while (++index < length) {
- var value = array[index],
- computed = callback ? callback(value, index, array) : value;
- if (isSorted
- ? !index || seen[seen.length - 1] !== computed
- : indexOf(seen, computed) < 0
- ) {
- if (callback || isLarge) {
- seen.push(computed);
- }
- result.push(value);
- }
- }
- if (isLarge) {
- releaseArray(seen.array);
- releaseObject(seen);
- } else if (callback) {
- releaseArray(seen);
- }
- return result;
- }
- /**
- * Creates a function that aggregates a collection, creating an object composed
- * of keys generated from the results of running each element of the collection
- * through a callback. The given `setter` function sets the keys and values
- * of the composed