| /** |
| * Lo-Dash 2.4.1 (Custom Build) <http://lodash.com/> |
| * Build: `lodash modularize exports="node" -o ./compat/` |
| * 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 isArguments = require('./isArguments'), |
| isNative = require('../internals/isNative'), |
| isObject = require('./isObject'), |
| shimKeys = require('../internals/shimKeys'), |
| support = require('../support'); |
| |
| /* Native method shortcuts for methods with the same name as other `lodash` methods */ |
| var nativeKeys = isNative(nativeKeys = Object.keys) && nativeKeys; |
| |
| /** |
| * Creates an array composed of the own enumerable property names of an object. |
| * |
| * @static |
| * @memberOf _ |
| * @category Objects |
| * @param {Object} object The object to inspect. |
| * @returns {Array} Returns an array of property names. |
| * @example |
| * |
| * _.keys({ 'one': 1, 'two': 2, 'three': 3 }); |
| * // => ['one', 'two', 'three'] (property order is not guaranteed across environments) |
| */ |
| var keys = !nativeKeys ? shimKeys : function(object) { |
| if (!isObject(object)) { |
| return []; |
| } |
| if ((support.enumPrototypes && typeof object == 'function') || |
| (support.nonEnumArgs && object.length && isArguments(object))) { |
| return shimKeys(object); |
| } |
| return nativeKeys(object); |
| }; |
| |
| module.exports = keys; |