| /** |
| * 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 baseCreateCallback = require('../internals/baseCreateCallback'), |
| keys = require('./keys'), |
| objectTypes = require('../internals/objectTypes'); |
| |
| /** |
| * Iterates over own enumerable properties of an object, executing the callback |
| * for each property. The callback is bound to `thisArg` and invoked with three |
| * arguments; (value, key, object). Callbacks may exit iteration early by |
| * explicitly returning `false`. |
| * |
| * @static |
| * @memberOf _ |
| * @type Function |
| * @category Objects |
| * @param {Object} object The object to iterate over. |
| * @param {Function} [callback=identity] The function called per iteration. |
| * @param {*} [thisArg] The `this` binding of `callback`. |
| * @returns {Object} Returns `object`. |
| * @example |
| * |
| * _.forOwn({ '0': 'zero', '1': 'one', 'length': 2 }, function(num, key) { |
| * console.log(key); |
| * }); |
| * // => logs '0', '1', and 'length' (property order is not guaranteed across environments) |
| */ |
| var forOwn = function(collection, callback, thisArg) { |
| var index, iterable = collection, result = iterable; |
| if (!iterable) return result; |
| if (!objectTypes[typeof iterable]) return result; |
| callback = callback && typeof thisArg == 'undefined' ? callback : baseCreateCallback(callback, thisArg, 3); |
| var ownIndex = -1, |
| ownProps = objectTypes[typeof iterable] && keys(iterable), |
| length = ownProps ? ownProps.length : 0; |
| |
| while (++ownIndex < length) { |
| index = ownProps[ownIndex]; |
| if (callback(iterable[index], index, collection) === false) return result; |
| } |
| return result |
| }; |
| |
| module.exports = forOwn; |