/** * lodash 3.0.1 (Custom Build) * Build: `lodash modern modularize exports="npm" -o ./` * Copyright 2012-2015 The Dojo Foundation * Based on Underscore.js 1.7.0 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors * Available under MIT license */ var baseCompareAscending = require('lodash._basecompareascending'), baseEach = require('lodash._baseeach'), baseFlatten = require('lodash._baseflatten'), baseSortBy = require('lodash._basesortby'), isIterateeCall = require('lodash._isiterateecall'); /** * Used by `_.sortByAll` to compare multiple properties of each element * in a collection and stable sort them in ascending order. * * @private * @param {Object} object The object to compare to `other`. * @param {Object} other The object to compare to `object`. * @returns {number} Returns the sort order indicator for `object`. */ function compareMultipleAscending(object, other) { var index = -1, objCriteria = object.criteria, othCriteria = other.criteria, length = objCriteria.length; while (++index < length) { var result = baseCompareAscending(objCriteria[index], othCriteria[index]); if (result) { return result; } } // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications // that causes it, under certain circumstances, to provide the same value for // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247 // for more details. // // This also ensures a stable sort in V8 and other engines. // See https://code.google.com/p/v8/issues/detail?id=90 for more details. return object.index - other.index; } /** * Used as the maximum length of an array-like value. * See the [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer) * for more details. */ var MAX_SAFE_INTEGER = Math.pow(2, 53) - 1; /** * Checks if `value` is a valid array-like length. * * **Note:** This function is based on ES `ToLength`. See the * [ES spec](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength) * for more details. * * @private * @param {*} value The value to check. * @returns {boolean} Returns `true` if `value` is a valid length, else `false`. */ function isLength(value) { return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER; } /** * This method is like `_.sortBy` except that it sorts by property names * instead of an iteratee function. * * @static * @memberOf _ * @category Collection * @param {Array|Object|string} collection The collection to iterate over. * @param {...(string|string[])} props The property names to sort by, * specified as individual property names or arrays of property names. * @returns {Array} Returns the new sorted array. * @example * * var users = [ * { 'user': 'barney', 'age': 36 }, * { 'user': 'fred', 'age': 40 }, * { 'user': 'barney', 'age': 26 }, * { 'user': 'fred', 'age': 30 } * ]; * * _.map(_.sortByAll(users, ['user', 'age']), _.values); * // => [['barney', 26], ['barney', 36], ['fred', 30], ['fred', 40]] */ function sortByAll(collection) { var args = arguments; if (args.length > 3 && isIterateeCall(args[1], args[2], args[3])) { args = [collection, args[1]]; } var index = -1, length = collection ? collection.length : 0, props = baseFlatten(args, false, false, 1), result = isLength(length) ? Array(length) : []; baseEach(collection, function(value) { var length = props.length, criteria = Array(length); while (length--) { criteria[length] = value == null ? undefined : value[props[length]]; } result[++index] = { 'criteria': criteria, 'index': index, 'value': value }; }); return baseSortBy(result, compareMultipleAscending); } module.exports = sortByAll;