mirror of
https://github.com/Alfresco/alfresco-ng2-components.git
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832 lines
24 KiB
JavaScript
832 lines
24 KiB
JavaScript
/**
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* lodash 4.1.4 (Custom Build) <https://lodash.com/>
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* Build: `lodash modularize exports="npm" -o ./`
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* Copyright jQuery Foundation and other contributors <https://jquery.org/>
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* Released under MIT license <https://lodash.com/license>
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* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
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* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
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*/
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var Stack = require('lodash._stack'),
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keys = require('lodash.keys'),
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root = require('lodash._root');
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/** Used to compose bitmasks for comparison styles. */
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var UNORDERED_COMPARE_FLAG = 1,
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PARTIAL_COMPARE_FLAG = 2;
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/** Used as references for various `Number` constants. */
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var MAX_SAFE_INTEGER = 9007199254740991;
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/** `Object#toString` result references. */
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var argsTag = '[object Arguments]',
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arrayTag = '[object Array]',
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boolTag = '[object Boolean]',
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dateTag = '[object Date]',
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errorTag = '[object Error]',
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funcTag = '[object Function]',
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genTag = '[object GeneratorFunction]',
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mapTag = '[object Map]',
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numberTag = '[object Number]',
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objectTag = '[object Object]',
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promiseTag = '[object Promise]',
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regexpTag = '[object RegExp]',
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setTag = '[object Set]',
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stringTag = '[object String]',
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symbolTag = '[object Symbol]',
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weakMapTag = '[object WeakMap]';
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var arrayBufferTag = '[object ArrayBuffer]',
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dataViewTag = '[object DataView]',
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float32Tag = '[object Float32Array]',
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float64Tag = '[object Float64Array]',
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int8Tag = '[object Int8Array]',
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int16Tag = '[object Int16Array]',
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int32Tag = '[object Int32Array]',
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uint8Tag = '[object Uint8Array]',
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uint8ClampedTag = '[object Uint8ClampedArray]',
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uint16Tag = '[object Uint16Array]',
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uint32Tag = '[object Uint32Array]';
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/**
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* Used to match `RegExp`
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* [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
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*/
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var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
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/** Used to detect host constructors (Safari). */
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var reIsHostCtor = /^\[object .+?Constructor\]$/;
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/** Used to identify `toStringTag` values of typed arrays. */
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var typedArrayTags = {};
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typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
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typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
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typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
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typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
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typedArrayTags[uint32Tag] = true;
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typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
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typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
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typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
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typedArrayTags[errorTag] = typedArrayTags[funcTag] =
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typedArrayTags[mapTag] = typedArrayTags[numberTag] =
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typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
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typedArrayTags[setTag] = typedArrayTags[stringTag] =
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typedArrayTags[weakMapTag] = false;
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/**
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* A specialized version of `_.some` for arrays without support for iteratee
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* shorthands.
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*
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* @private
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* @param {Array} array The array to iterate over.
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* @param {Function} predicate The function invoked per iteration.
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* @returns {boolean} Returns `true` if any element passes the predicate check,
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* else `false`.
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*/
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function arraySome(array, predicate) {
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var index = -1,
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length = array.length;
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while (++index < length) {
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if (predicate(array[index], index, array)) {
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return true;
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}
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}
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return false;
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}
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/**
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* Checks if `value` is a host object in IE < 9.
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*
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* @private
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* @param {*} value The value to check.
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* @returns {boolean} Returns `true` if `value` is a host object, else `false`.
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*/
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function isHostObject(value) {
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// Many host objects are `Object` objects that can coerce to strings
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// despite having improperly defined `toString` methods.
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var result = false;
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if (value != null && typeof value.toString != 'function') {
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try {
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result = !!(value + '');
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} catch (e) {}
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}
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return result;
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}
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/**
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* Converts `map` to an array.
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*
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* @private
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* @param {Object} map The map to convert.
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* @returns {Array} Returns the converted array.
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*/
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function mapToArray(map) {
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var index = -1,
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result = Array(map.size);
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map.forEach(function(value, key) {
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result[++index] = [key, value];
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});
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return result;
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}
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/**
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* Converts `set` to an array.
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*
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* @private
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* @param {Object} set The set to convert.
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* @returns {Array} Returns the converted array.
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*/
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function setToArray(set) {
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var index = -1,
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result = Array(set.size);
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set.forEach(function(value) {
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result[++index] = value;
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});
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return result;
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}
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/** Used for built-in method references. */
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var objectProto = Object.prototype;
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/** Used to resolve the decompiled source of functions. */
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var funcToString = Function.prototype.toString;
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/** Used to check objects for own properties. */
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var hasOwnProperty = objectProto.hasOwnProperty;
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/**
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* Used to resolve the
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* [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
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* of values.
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*/
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var objectToString = objectProto.toString;
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/** Used to detect if a method is native. */
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var reIsNative = RegExp('^' +
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funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
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.replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
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);
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/** Built-in value references. */
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var Symbol = root.Symbol,
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Uint8Array = root.Uint8Array;
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/* Built-in method references for those with the same name as other `lodash` methods. */
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var nativeGetPrototype = Object.getPrototypeOf;
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/* Built-in method references that are verified to be native. */
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var DataView = getNative(root, 'DataView'),
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Map = getNative(root, 'Map'),
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Promise = getNative(root, 'Promise'),
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Set = getNative(root, 'Set'),
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WeakMap = getNative(root, 'WeakMap');
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/** Used to detect maps, sets, and weakmaps. */
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var dataViewCtorString = toSource(DataView),
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mapCtorString = toSource(Map),
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promiseCtorString = toSource(Promise),
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setCtorString = toSource(Set),
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weakMapCtorString = toSource(WeakMap);
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/** Used to convert symbols to primitives and strings. */
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var symbolProto = Symbol ? Symbol.prototype : undefined,
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symbolValueOf = symbolProto ? symbolProto.valueOf : undefined;
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/**
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* The base implementation of `_.has` without support for deep paths.
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*
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* @private
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* @param {Object} object The object to query.
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* @param {Array|string} key The key to check.
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* @returns {boolean} Returns `true` if `key` exists, else `false`.
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*/
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function baseHas(object, key) {
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// Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
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// that are composed entirely of index properties, return `false` for
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// `hasOwnProperty` checks of them.
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return hasOwnProperty.call(object, key) ||
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(typeof object == 'object' && key in object && getPrototype(object) === null);
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}
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/**
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* The base implementation of `_.isEqual` which supports partial comparisons
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* and tracks traversed objects.
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*
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* @private
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* @param {*} value The value to compare.
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* @param {*} other The other value to compare.
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* @param {Function} [customizer] The function to customize comparisons.
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* @param {boolean} [bitmask] The bitmask of comparison flags.
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* The bitmask may be composed of the following flags:
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* 1 - Unordered comparison
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* 2 - Partial comparison
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* @param {Object} [stack] Tracks traversed `value` and `other` objects.
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* @returns {boolean} Returns `true` if the values are equivalent, else `false`.
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*/
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function baseIsEqual(value, other, customizer, bitmask, stack) {
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if (value === other) {
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return true;
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}
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if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
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return value !== value && other !== other;
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}
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return baseIsEqualDeep(value, other, baseIsEqual, customizer, bitmask, stack);
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}
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/**
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* A specialized version of `baseIsEqual` for arrays and objects which performs
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* deep comparisons and tracks traversed objects enabling objects with circular
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* references to be compared.
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*
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* @private
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* @param {Object} object The object to compare.
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* @param {Object} other The other object to compare.
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* @param {Function} equalFunc The function to determine equivalents of values.
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* @param {Function} [customizer] The function to customize comparisons.
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* @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual`
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* for more details.
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* @param {Object} [stack] Tracks traversed `object` and `other` objects.
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* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
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*/
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function baseIsEqualDeep(object, other, equalFunc, customizer, bitmask, stack) {
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var objIsArr = isArray(object),
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othIsArr = isArray(other),
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objTag = arrayTag,
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othTag = arrayTag;
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if (!objIsArr) {
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objTag = getTag(object);
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objTag = objTag == argsTag ? objectTag : objTag;
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}
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if (!othIsArr) {
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othTag = getTag(other);
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othTag = othTag == argsTag ? objectTag : othTag;
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}
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var objIsObj = objTag == objectTag && !isHostObject(object),
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othIsObj = othTag == objectTag && !isHostObject(other),
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isSameTag = objTag == othTag;
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if (isSameTag && !objIsObj) {
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stack || (stack = new Stack);
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return (objIsArr || isTypedArray(object))
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? equalArrays(object, other, equalFunc, customizer, bitmask, stack)
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: equalByTag(object, other, objTag, equalFunc, customizer, bitmask, stack);
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}
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if (!(bitmask & PARTIAL_COMPARE_FLAG)) {
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var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
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othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');
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if (objIsWrapped || othIsWrapped) {
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var objUnwrapped = objIsWrapped ? object.value() : object,
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othUnwrapped = othIsWrapped ? other.value() : other;
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stack || (stack = new Stack);
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return equalFunc(objUnwrapped, othUnwrapped, customizer, bitmask, stack);
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}
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}
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if (!isSameTag) {
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return false;
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}
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stack || (stack = new Stack);
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return equalObjects(object, other, equalFunc, customizer, bitmask, stack);
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}
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/**
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* A specialized version of `baseIsEqualDeep` for arrays with support for
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* partial deep comparisons.
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*
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* @private
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* @param {Array} array The array to compare.
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* @param {Array} other The other array to compare.
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* @param {Function} equalFunc The function to determine equivalents of values.
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* @param {Function} customizer The function to customize comparisons.
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* @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`
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* for more details.
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* @param {Object} stack Tracks traversed `array` and `other` objects.
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* @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
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*/
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function equalArrays(array, other, equalFunc, customizer, bitmask, stack) {
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var index = -1,
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isPartial = bitmask & PARTIAL_COMPARE_FLAG,
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isUnordered = bitmask & UNORDERED_COMPARE_FLAG,
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arrLength = array.length,
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othLength = other.length;
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if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
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return false;
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}
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// Assume cyclic values are equal.
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var stacked = stack.get(array);
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if (stacked) {
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return stacked == other;
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}
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var result = true;
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stack.set(array, other);
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// Ignore non-index properties.
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while (++index < arrLength) {
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var arrValue = array[index],
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othValue = other[index];
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if (customizer) {
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var compared = isPartial
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? customizer(othValue, arrValue, index, other, array, stack)
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: customizer(arrValue, othValue, index, array, other, stack);
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}
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if (compared !== undefined) {
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if (compared) {
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continue;
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}
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result = false;
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break;
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}
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// Recursively compare arrays (susceptible to call stack limits).
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if (isUnordered) {
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if (!arraySome(other, function(othValue) {
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return arrValue === othValue ||
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equalFunc(arrValue, othValue, customizer, bitmask, stack);
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})) {
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result = false;
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break;
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}
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} else if (!(
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arrValue === othValue ||
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equalFunc(arrValue, othValue, customizer, bitmask, stack)
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)) {
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result = false;
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break;
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}
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}
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stack['delete'](array);
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return result;
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}
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/**
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* A specialized version of `baseIsEqualDeep` for comparing objects of
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* the same `toStringTag`.
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*
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* **Note:** This function only supports comparing values with tags of
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* `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
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*
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* @private
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* @param {Object} object The object to compare.
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* @param {Object} other The other object to compare.
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* @param {string} tag The `toStringTag` of the objects to compare.
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* @param {Function} equalFunc The function to determine equivalents of values.
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* @param {Function} customizer The function to customize comparisons.
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* @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`
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* for more details.
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* @param {Object} stack Tracks traversed `object` and `other` objects.
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* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
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*/
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function equalByTag(object, other, tag, equalFunc, customizer, bitmask, stack) {
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switch (tag) {
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case dataViewTag:
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if ((object.byteLength != other.byteLength) ||
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(object.byteOffset != other.byteOffset)) {
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return false;
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}
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object = object.buffer;
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other = other.buffer;
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case arrayBufferTag:
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if ((object.byteLength != other.byteLength) ||
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!equalFunc(new Uint8Array(object), new Uint8Array(other))) {
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return false;
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}
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return true;
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case boolTag:
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case dateTag:
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// Coerce dates and booleans to numbers, dates to milliseconds and
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// booleans to `1` or `0` treating invalid dates coerced to `NaN` as
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// not equal.
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return +object == +other;
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case errorTag:
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return object.name == other.name && object.message == other.message;
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case numberTag:
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// Treat `NaN` vs. `NaN` as equal.
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return (object != +object) ? other != +other : object == +other;
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case regexpTag:
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case stringTag:
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// Coerce regexes to strings and treat strings, primitives and objects,
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// as equal. See http://www.ecma-international.org/ecma-262/6.0/#sec-regexp.prototype.tostring
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// for more details.
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return object == (other + '');
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case mapTag:
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var convert = mapToArray;
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case setTag:
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var isPartial = bitmask & PARTIAL_COMPARE_FLAG;
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convert || (convert = setToArray);
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if (object.size != other.size && !isPartial) {
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return false;
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}
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// Assume cyclic values are equal.
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var stacked = stack.get(object);
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if (stacked) {
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return stacked == other;
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}
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bitmask |= UNORDERED_COMPARE_FLAG;
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stack.set(object, other);
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// Recursively compare objects (susceptible to call stack limits).
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return equalArrays(convert(object), convert(other), equalFunc, customizer, bitmask, stack);
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case symbolTag:
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if (symbolValueOf) {
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return symbolValueOf.call(object) == symbolValueOf.call(other);
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}
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}
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return false;
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}
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/**
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* A specialized version of `baseIsEqualDeep` for objects with support for
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* partial deep comparisons.
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*
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* @private
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* @param {Object} object The object to compare.
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* @param {Object} other The other object to compare.
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* @param {Function} equalFunc The function to determine equivalents of values.
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* @param {Function} customizer The function to customize comparisons.
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* @param {number} bitmask The bitmask of comparison flags. See `baseIsEqual`
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* for more details.
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* @param {Object} stack Tracks traversed `object` and `other` objects.
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* @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
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*/
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function equalObjects(object, other, equalFunc, customizer, bitmask, stack) {
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var isPartial = bitmask & PARTIAL_COMPARE_FLAG,
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objProps = keys(object),
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objLength = objProps.length,
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othProps = keys(other),
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othLength = othProps.length;
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if (objLength != othLength && !isPartial) {
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return false;
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}
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var index = objLength;
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while (index--) {
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var key = objProps[index];
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if (!(isPartial ? key in other : baseHas(other, key))) {
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return false;
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}
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}
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// Assume cyclic values are equal.
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var stacked = stack.get(object);
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if (stacked) {
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return stacked == other;
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}
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var result = true;
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stack.set(object, other);
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var skipCtor = isPartial;
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while (++index < objLength) {
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key = objProps[index];
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var objValue = object[key],
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othValue = other[key];
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if (customizer) {
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var compared = isPartial
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? customizer(othValue, objValue, key, other, object, stack)
|
|
: customizer(objValue, othValue, key, object, other, stack);
|
|
}
|
|
// Recursively compare objects (susceptible to call stack limits).
|
|
if (!(compared === undefined
|
|
? (objValue === othValue || equalFunc(objValue, othValue, customizer, bitmask, stack))
|
|
: compared
|
|
)) {
|
|
result = false;
|
|
break;
|
|
}
|
|
skipCtor || (skipCtor = key == 'constructor');
|
|
}
|
|
if (result && !skipCtor) {
|
|
var objCtor = object.constructor,
|
|
othCtor = other.constructor;
|
|
|
|
// Non `Object` object instances with different constructors are not equal.
|
|
if (objCtor != othCtor &&
|
|
('constructor' in object && 'constructor' in other) &&
|
|
!(typeof objCtor == 'function' && objCtor instanceof objCtor &&
|
|
typeof othCtor == 'function' && othCtor instanceof othCtor)) {
|
|
result = false;
|
|
}
|
|
}
|
|
stack['delete'](object);
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Gets the native function at `key` of `object`.
|
|
*
|
|
* @private
|
|
* @param {Object} object The object to query.
|
|
* @param {string} key The key of the method to get.
|
|
* @returns {*} Returns the function if it's native, else `undefined`.
|
|
*/
|
|
function getNative(object, key) {
|
|
var value = object[key];
|
|
return isNative(value) ? value : undefined;
|
|
}
|
|
|
|
/**
|
|
* Gets the `[[Prototype]]` of `value`.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to query.
|
|
* @returns {null|Object} Returns the `[[Prototype]]`.
|
|
*/
|
|
function getPrototype(value) {
|
|
return nativeGetPrototype(Object(value));
|
|
}
|
|
|
|
/**
|
|
* Gets the `toStringTag` of `value`.
|
|
*
|
|
* @private
|
|
* @param {*} value The value to query.
|
|
* @returns {string} Returns the `toStringTag`.
|
|
*/
|
|
function getTag(value) {
|
|
return objectToString.call(value);
|
|
}
|
|
|
|
// Fallback for data views, maps, sets, and weak maps in IE 11,
|
|
// for data views in Edge, and promises in Node.js.
|
|
if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
|
|
(Map && getTag(new Map) != mapTag) ||
|
|
(Promise && getTag(Promise.resolve()) != promiseTag) ||
|
|
(Set && getTag(new Set) != setTag) ||
|
|
(WeakMap && getTag(new WeakMap) != weakMapTag)) {
|
|
getTag = function(value) {
|
|
var result = objectToString.call(value),
|
|
Ctor = result == objectTag ? value.constructor : undefined,
|
|
ctorString = Ctor ? toSource(Ctor) : undefined;
|
|
|
|
if (ctorString) {
|
|
switch (ctorString) {
|
|
case dataViewCtorString: return dataViewTag;
|
|
case mapCtorString: return mapTag;
|
|
case promiseCtorString: return promiseTag;
|
|
case setCtorString: return setTag;
|
|
case weakMapCtorString: return weakMapTag;
|
|
}
|
|
}
|
|
return result;
|
|
};
|
|
}
|
|
|
|
/**
|
|
* Converts `func` to its source code.
|
|
*
|
|
* @private
|
|
* @param {Function} func The function to process.
|
|
* @returns {string} Returns the source code.
|
|
*/
|
|
function toSource(func) {
|
|
if (func != null) {
|
|
try {
|
|
return funcToString.call(func);
|
|
} catch (e) {}
|
|
try {
|
|
return (func + '');
|
|
} catch (e) {}
|
|
}
|
|
return '';
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as an `Array` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @type {Function}
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is correctly classified,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.isArray([1, 2, 3]);
|
|
* // => true
|
|
*
|
|
* _.isArray(document.body.children);
|
|
* // => false
|
|
*
|
|
* _.isArray('abc');
|
|
* // => false
|
|
*
|
|
* _.isArray(_.noop);
|
|
* // => false
|
|
*/
|
|
var isArray = Array.isArray;
|
|
|
|
/**
|
|
* Performs a deep comparison between two values to determine if they are
|
|
* equivalent.
|
|
*
|
|
* **Note:** This method supports comparing arrays, array buffers, booleans,
|
|
* date objects, error objects, maps, numbers, `Object` objects, regexes,
|
|
* sets, strings, symbols, and typed arrays. `Object` objects are compared
|
|
* by their own, not inherited, enumerable properties. Functions and DOM
|
|
* nodes are **not** supported.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to compare.
|
|
* @param {*} other The other value to compare.
|
|
* @returns {boolean} Returns `true` if the values are equivalent,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* var object = { 'user': 'fred' };
|
|
* var other = { 'user': 'fred' };
|
|
*
|
|
* _.isEqual(object, other);
|
|
* // => true
|
|
*
|
|
* object === other;
|
|
* // => false
|
|
*/
|
|
function isEqual(value, other) {
|
|
return baseIsEqual(value, other);
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a `Function` object.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is correctly classified,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.isFunction(_);
|
|
* // => true
|
|
*
|
|
* _.isFunction(/abc/);
|
|
* // => false
|
|
*/
|
|
function isFunction(value) {
|
|
// The use of `Object#toString` avoids issues with the `typeof` operator
|
|
// in Safari 8 which returns 'object' for typed array and weak map constructors,
|
|
// and PhantomJS 1.9 which returns 'function' for `NodeList` instances.
|
|
var tag = isObject(value) ? objectToString.call(value) : '';
|
|
return tag == funcTag || tag == genTag;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a valid array-like length.
|
|
*
|
|
* **Note:** This function is loosely based on
|
|
* [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a valid length,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.isLength(3);
|
|
* // => true
|
|
*
|
|
* _.isLength(Number.MIN_VALUE);
|
|
* // => false
|
|
*
|
|
* _.isLength(Infinity);
|
|
* // => false
|
|
*
|
|
* _.isLength('3');
|
|
* // => false
|
|
*/
|
|
function isLength(value) {
|
|
return typeof value == 'number' &&
|
|
value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is the
|
|
* [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
|
|
* of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 0.1.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is an object, else `false`.
|
|
* @example
|
|
*
|
|
* _.isObject({});
|
|
* // => true
|
|
*
|
|
* _.isObject([1, 2, 3]);
|
|
* // => true
|
|
*
|
|
* _.isObject(_.noop);
|
|
* // => true
|
|
*
|
|
* _.isObject(null);
|
|
* // => false
|
|
*/
|
|
function isObject(value) {
|
|
var type = typeof value;
|
|
return !!value && (type == 'object' || type == 'function');
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is object-like. A value is object-like if it's not `null`
|
|
* and has a `typeof` result of "object".
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 4.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is object-like, else `false`.
|
|
* @example
|
|
*
|
|
* _.isObjectLike({});
|
|
* // => true
|
|
*
|
|
* _.isObjectLike([1, 2, 3]);
|
|
* // => true
|
|
*
|
|
* _.isObjectLike(_.noop);
|
|
* // => false
|
|
*
|
|
* _.isObjectLike(null);
|
|
* // => false
|
|
*/
|
|
function isObjectLike(value) {
|
|
return !!value && typeof value == 'object';
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is a native function.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is a native function,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.isNative(Array.prototype.push);
|
|
* // => true
|
|
*
|
|
* _.isNative(_);
|
|
* // => false
|
|
*/
|
|
function isNative(value) {
|
|
if (!isObject(value)) {
|
|
return false;
|
|
}
|
|
var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
|
|
return pattern.test(toSource(value));
|
|
}
|
|
|
|
/**
|
|
* Checks if `value` is classified as a typed array.
|
|
*
|
|
* @static
|
|
* @memberOf _
|
|
* @since 3.0.0
|
|
* @category Lang
|
|
* @param {*} value The value to check.
|
|
* @returns {boolean} Returns `true` if `value` is correctly classified,
|
|
* else `false`.
|
|
* @example
|
|
*
|
|
* _.isTypedArray(new Uint8Array);
|
|
* // => true
|
|
*
|
|
* _.isTypedArray([]);
|
|
* // => false
|
|
*/
|
|
function isTypedArray(value) {
|
|
return isObjectLike(value) &&
|
|
isLength(value.length) && !!typedArrayTags[objectToString.call(value)];
|
|
}
|
|
|
|
module.exports = isEqual;
|