View: each

Function:
Description: Return the currently pointed key..value pair in the passed array, and advance the pointer to the next element.
Code
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function each (arr) {
    // http://jsphp.co/jsphp/fn/view/each
    // +   original by: Ates Goral (http://magnetiq.com) 
    // +    revised by: Brett Zamir (http://brett-zamir.me)
    // %        note 1: Uses global: php_js to store the array pointer
    // *     example 1: each({a: "apple", b: "balloon"});
    // *     returns 1: {0: "a", 1: "apple", key: "a", value: "apple"}
    //  Will return a 4-item object unless a class property 'returnArrayOnly'
    //  is set to true on this function if want to only receive a two-item
    //  numerically-indexed array (for the sake of array destructuring in
    //  JavaScript 1.7+ (similar to list() in PHP, but as PHP does it automatically
    //  in that context and JavaScript cannot, we needed something to allow that option)
    //  See https://developer.mozilla.org/en/New_in_JavaScript_1.7#Destructuring_assignment
    // 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 arrpos = pointers.indexOf(arr);
    var cursor = pointers[arrpos + 1];
    var pos = 0;

    if (Object.prototype.toString.call(arr) !== '[object Array]') {
        var ct = 0;
        for (var k in arr) {
            if (ct === cursor) {
                pointers[arrpos + 1] += 1;
                if (each.returnArrayOnly) {
                    return [k, arr[k]];
                } else {
                    return {
                        1: arr[k],
                        value: arr[k],
                        0: k,
                        key: k
                    };
                }
            }
            ct++;
        }
        return false; // Empty
    }
    if (arr.length === 0 || cursor === arr.length) {
        return false;
    }
    pos = cursor;
    pointers[arrpos + 1] += 1;
    if (each.returnArrayOnly) {
        return [pos, arr[pos]];
    } else {
        return {
            1: arr[pos],
            value: arr[pos],
            0: pos,
            key: pos
        };
    }
}
Comment on each version 56
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