Edit: key

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Description:	Return the key of the element currently pointed to by the internal array pointer.

Edit function

Code:	function key (arr) { // http://jsphp.co/jsphp/fn/view/key // + original by: Brett Zamir (http://brett-zamir.me) // + input by: Riddler (http://www.frontierwebdev.com/) // + bugfixed by: Brett Zamir (http://brett-zamir.me) // % note 1: Uses global: php_js to store the array pointer // * example 1: array = {fruit1: 'apple', 'fruit2': 'orange'} // * example 1: key(array); // * returns 1: 'fruit1' // BEGIN REDUNDANT this.php_js = this.php_js || {}; this.php_js.pointers = this.php_js.pointers || []; var indexOf = function (value) { for (var i = 0, length = this.length; i < length; i++) { if (this[i] === value) { return i; } } return -1; }; // END REDUNDANT var pointers = this.php_js.pointers; if (!pointers.indexOf) { pointers.indexOf = indexOf; } if (pointers.indexOf(arr) === -1) { pointers.push(arr, 0); } var cursor = pointers[pointers.indexOf(arr) + 1]; if (Object.prototype.toString.call(arr) !== '[object Array]') { var ct = 0; for (var k in arr) { if (ct === cursor) { return k; } ct++; } return false; // Empty } if (arr.length === 0) { return false; } return cursor; }
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