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function usort (inputArr, sorter) { // http://jsphp.co/jsphp/fn/view/usort // + original by: Brett Zamir (http://brett-zamir.me) // + improved by: Brett Zamir (http://brett-zamir.me) // % note 1: This function deviates from PHP in returning a copy of the array instead // % note 1: of acting by reference and returning true; this was necessary because // % note 1: IE does not allow deleting and re-adding of properties without caching // % note 1: of property position; you can set the ini of "phpjs.strictForIn" to true to // % note 1: get the PHP behavior, but use this only if you are in an environment // % note 1: such as Firefox extensions where for-in iteration order is fixed and true // % note 1: property deletion is supported. Note that we intend to implement the PHP // % note 1: behavior by default if IE ever does allow it; only gives shallow copy since // % note 1: is by reference in PHP anyways // * example 1: stuff = {d: '3', a: '1', b: '11', c: '4'}; // * example 1: stuff = usort(stuff, function (a, b) {return(a-b);}); // * results 1: stuff = {0: '1', 1: '3', 2: '4', 3: '11'}; var valArr = [], k = '', i = 0, strictForIn = false, populateArr = {}; if (typeof sorter === 'string') { sorter = this[sorter]; } else if (Object.prototype.toString.call(sorter) === '[object Array]') { sorter = this[sorter[0]][sorter[1]]; } // 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; for (k in inputArr) { // Get key and value arrays if (inputArr.hasOwnProperty(k)) { valArr.push(inputArr[k]); if (strictForIn) { delete inputArr[k]; } } } try { valArr.sort(sorter); } catch (e) { return false; } for (i = 0; i < valArr.length; i++) { // Repopulate the old array populateArr[i] = valArr[i]; } return strictForIn || populateArr; }
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