Edit array_pop version 27 | JsPHP: a JavaScript library providing the PHP API

Function: array_pop version 27

Function:	array_pop View array_pop Edit array_pop Edit code Edit tests Edit benchmark View latest code Edit latest code Benchmark array_pop Comment on array_pop Comment on the latest code View revisions View versions View contributors View dependencies View comments View links Download production code Download development code View the PHP docs View phpjs.org View phpjs.org raw code
Description:	Pops an element off the end of the array.

Version:	27 View this version Edit this version Comment on this version Diff this version
Status:	latest
Date:	2011-12-20 04:35
Summary:	Import from phpjs.
Programmer:	jj5

Edit function

Code:

function array_pop (inputArr) {
    // http://jsphp.co/jsphp/fn/view/array_pop
    // +   original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: Brett Zamir (http://brett-zamir.me)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   bugfixed by: Brett Zamir (http://brett-zamir.me)
    // +   input by: Theriault
    // %        note 1: While IE (and other browsers) support iterating an object's
    // %        note 1: own properties in order, if one attempts to add back properties
    // %        note 1: in IE, they may end up in their former position due to their position
    // %        note 1: being retained. So use of this function with "associative arrays"
    // %        note 1: (objects) may lead to unexpected behavior in an IE environment if
    // %        note 1: you add back properties with the same keys that you removed
    // *     example 1: array_pop([0,1,2]);
    // *     returns 1: 2
    // *     example 2: data = {firstName: 'Kevin', surName: 'van Zonneveld'};
    // *     example 2: lastElem = array_pop(data);
    // *     returns 2: 'van Zonneveld'
    // *     results 2: data == {firstName: 'Kevin'}
    var key = '',
        lastKey = '';

    if (inputArr.hasOwnProperty('length')) {
        // Indexed
        if (!inputArr.length) {
            // Done popping, are we?
            return null;
        }
        return inputArr.pop();
    } else {
        // Associative
        for (key in inputArr) {
            if (inputArr.hasOwnProperty(key)) {
                lastKey = key;
            }
        }
        if (lastKey) {
            var tmp = inputArr[lastKey];
            delete(inputArr[lastKey]);
            return tmp;
        } else {
            return null;
        }
    }
}

JsPHP: a JavaScript library providing the PHP API

Function: array_pop version 27

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