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'use strict';
module.exports = function array_pop(inputArr) {
// eslint-disable-line camelcase
// discuss at: http://locutus.io/php/array_pop/
// original by: Kevin van Zonneveld (http://kvz.io)
// improved by: Kevin van Zonneveld (http://kvz.io)
// input by: Brett Zamir (http://brett-zamir.me)
// input by: Theriault (https://github.com/Theriault)
// bugfixed by: Kevin van Zonneveld (http://kvz.io)
// bugfixed by: Brett Zamir (http://brett-zamir.me)
// 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: var $data = {firstName: 'Kevin', surName: 'van Zonneveld'}
// example 2: var $lastElem = array_pop($data)
// example 2: var $result = $data
// returns 2: {firstName: 'Kevin'}
var key = '';
var 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;
}
}
};
//# sourceMappingURL=array_pop.js.map
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