text: /**
   * 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 compareAscending = require('../internals/compareAscending'),
      createCallback = require('../functions/createCallback'),
      forEach = require('./forEach'),
      getArray = require('../internals/getArray'),
      getObject = require('../internals/getObject'),
      isArray = require('../objects/isArray'),
      map = require('./map'),
      releaseArray = require('../internals/releaseArray'),
      releaseObject = require('../internals/releaseObject');
  
  /**
   * Creates an array of elements, sorted in ascending order by the results of
   * running each element in a collection through the callback. This method
   * performs a stable sort, that is, it will preserve the original sort order
   * of equal elements. The callback is bound to `thisArg` and invoked with
   * three arguments; (value, index|key, collection).
   *
   * If a property name is provided for `callback` the created "_.pluck" style
   * callback will return the property value of the given element.
   *
   * If an array of property names is provided for `callback` the collection
   * will be sorted by each property value.
   *
   * If an object is provided for `callback` the created "_.where" style callback
   * will return `true` for elements that have the properties of the given object,
   * else `false`.
   *
   * @static
   * @memberOf _
   * @category Collections
   * @param {Array|Object|string} collection The collection to iterate over.
   * @param {Array|Function|Object|string} [callback=identity] The function called
   *  per iteration. If a property name or object is provided it will be used
   *  to create a "_.pluck" or "_.where" style callback, respectively.
   * @param {*} [thisArg] The `this` binding of `callback`.
   * @returns {Array} Returns a new array of sorted elements.
   * @example
   *
   * _.sortBy([1, 2, 3], function(num) { return Math.sin(num); });
   * // => [3, 1, 2]
   *
   * _.sortBy([1, 2, 3], function(num) { return this.sin(num); }, Math);
   * // => [3, 1, 2]
   *
   * var characters = [
   *   { 'name': 'barney',  'age': 36 },
   *   { 'name': 'fred',    'age': 40 },
   *   { 'name': 'barney',  'age': 26 },
   *   { 'name': 'fred',    'age': 30 }
   * ];
   *
   * // using "_.pluck" callback shorthand
   * _.map(_.sortBy(characters, 'age'), _.values);
   * // => [['barney', 26], ['fred', 30], ['barney', 36], ['fred', 40]]
   *
   * // sorting by multiple properties
   * _.map(_.sortBy(characters, ['name', 'age']), _.values);
   * // = > [['barney', 26], ['barney', 36], ['fred', 30], ['fred', 40]]
   */
  function sortBy(collection, callback, thisArg) {
    var index = -1,
        isArr = isArray(callback),
        length = collection ? collection.length : 0,
        result = Array(typeof length == 'number' ? length : 0);
  
    if (!isArr) {
      callback = createCallback(callback, thisArg, 3);
    }
    forEach(collection, function(value, key, collection) {
      var object = result[++index] = getObject();
      if (isArr) {
        object.criteria = map(callback, function(key) { return value[key]; });
      } else {
        (object.criteria = getArray())[0] = callback(value, key, collection);
      }
      object.index = index;
      object.value = value;
    });
  
    length = result.length;
    result.sort(compareAscending);
    while (length--) {
      var object = result[length];
      result[length] = object.value;
      if (!isArr) {
        releaseArray(object.criteria);
      }
      releaseObject(object);
    }
    return result;
  }
  
  module.exports = sortBy;
  