| /** |
| * Lo-Dash 2.4.1 (Custom Build) <http://lodash.com/> |
| * Build: `lodash modularize modern exports="node" -o ./modern/` |
| * 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> |
| */ |
| var isNative = require('../internals/isNative'), |
| shimIsPlainObject = require('../internals/shimIsPlainObject'); |
| |
| /** `Object#toString` result shortcuts */ |
| var objectClass = '[object Object]'; |
| |
| /** Used for native method references */ |
| var objectProto = Object.prototype; |
| |
| /** Used to resolve the internal [[Class]] of values */ |
| var toString = objectProto.toString; |
| |
| /** Native method shortcuts */ |
| var getPrototypeOf = isNative(getPrototypeOf = Object.getPrototypeOf) && getPrototypeOf; |
| |
| /** |
| * Checks if `value` is an object created by the `Object` constructor. |
| * |
| * @static |
| * @memberOf _ |
| * @category Objects |
| * @param {*} value The value to check. |
| * @returns {boolean} Returns `true` if `value` is a plain object, else `false`. |
| * @example |
| * |
| * function Shape() { |
| * this.x = 0; |
| * this.y = 0; |
| * } |
| * |
| * _.isPlainObject(new Shape); |
| * // => false |
| * |
| * _.isPlainObject([1, 2, 3]); |
| * // => false |
| * |
| * _.isPlainObject({ 'x': 0, 'y': 0 }); |
| * // => true |
| */ |
| var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) { |
| if (!(value && toString.call(value) == objectClass)) { |
| return false; |
| } |
| var valueOf = value.valueOf, |
| objProto = isNative(valueOf) && (objProto = getPrototypeOf(valueOf)) && getPrototypeOf(objProto); |
| |
| return objProto |
| ? (value == objProto || getPrototypeOf(value) == objProto) |
| : shimIsPlainObject(value); |
| }; |
| |
| module.exports = isPlainObject; |