Edit: asort

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Description:	Sort an array and maintain index association.

Edit function

Code:	function asort (inputArr, sort_flags) { // http://jsphp.co/jsphp/fn/view/asort // + original by: Brett Zamir (http://brett-zamir.me) // + improved by: Brett Zamir (http://brett-zamir.me) // + input by: paulo kuong // + improved by: Brett Zamir (http://brett-zamir.me) // + bugfixed by: Adam Wallner (http://web2.bitbaro.hu/) // + improved by: Theriault // % note 1: SORT_STRING (as well as natsort and natcasesort) might also be // % note 1: integrated into all of these functions by adapting the code at // % note 1: http://sourcefrog.net/projects/natsort/natcompare.js // % note 2: The examples are correct, this is a new way // % note 2: Credits to: http://javascript.internet.com/math-related/bubble-sort.html // % note 3: This function deviates from PHP in returning a copy of the array instead // % note 3: of acting by reference and returning true; this was necessary because // % note 3: IE does not allow deleting and re-adding of properties without caching // % note 3: of property position; you can set the ini of "phpjs.strictForIn" to true to // % note 3: get the PHP behavior, but use this only if you are in an environment // % note 3: such as Firefox extensions where for-in iteration order is fixed and true // % note 3: property deletion is supported. Note that we intend to implement the PHP // % note 3: behavior by default if IE ever does allow it; only gives shallow copy since // % note 3: is by reference in PHP anyways // % note 4: Since JS objects' keys are always strings, and (the // % note 4: default) SORT_REGULAR flag distinguishes by key type, // % note 4: if the content is a numeric string, we treat the // % note 4: "original type" as numeric. // - depends on: strnatcmp // - depends on: i18n_loc_get_default // * example 1: data = {d: 'lemon', a: 'orange', b: 'banana', c: 'apple'}; // * example 1: data = asort(data); // * results 1: data == {c: 'apple', b: 'banana', d: 'lemon', a: 'orange'} // * returns 1: true // * example 2: ini_set('phpjs.strictForIn', true); // * example 2: data = {d: 'lemon', a: 'orange', b: 'banana', c: 'apple'}; // * example 2: asort(data); // * results 2: data == {c: 'apple', b: 'banana', d: 'lemon', a: 'orange'} // * returns 2: true var valArr = [], valArrLen = 0, k, i, ret, sorter, that = this, strictForIn = false, populateArr = {}; switch (sort_flags) { case 'SORT_STRING': // compare items as strings sorter = function (a, b) { return that.strnatcmp(a, b); }; break; case 'SORT_LOCALE_STRING': // compare items as strings, based on the current locale (set with i18n_loc_set_default() as of PHP6) var loc = this.i18n_loc_get_default(); sorter = this.php_js.i18nLocales[loc].sorting; break; case 'SORT_NUMERIC': // compare items numerically sorter = function (a, b) { return (a - b); }; break; case 'SORT_REGULAR': // compare items normally (don't change types) default: sorter = function (a, b) { var aFloat = parseFloat(a), bFloat = parseFloat(b), aNumeric = aFloat + '' === a, bNumeric = bFloat + '' === b; if (aNumeric && bNumeric) { return aFloat > bFloat ? 1 : aFloat < bFloat ? -1 : 0; } else if (aNumeric && !bNumeric) { return 1; } else if (!aNumeric && bNumeric) { return -1; } return a > b ? 1 : a < b ? -1 : 0; }; break; } // BEGIN REDUNDANT this.php_js = this.php_js || {}; this.php_js.ini = this.php_js.ini || {}; // END REDUNDANT strictForIn = this.php_js.ini['phpjs.strictForIn'] && this.php_js.ini['phpjs.strictForIn'].local_value && this.php_js.ini['phpjs.strictForIn'].local_value !== 'off'; populateArr = strictForIn ? inputArr : populateArr; // Get key and value arrays for (k in inputArr) { if (inputArr.hasOwnProperty(k)) { valArr.push([k, inputArr[k]]); if (strictForIn) { delete inputArr[k]; } } } valArr.sort(function (a, b) { return sorter(a[1], b[1]); }); // Repopulate the old array for (i = 0, valArrLen = valArr.length; i < valArrLen; i++) { populateArr[valArr[i][0]] = valArr[i][1]; } return strictForIn || populateArr; }
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