Array.prototype.mergeAsNumber example

array mergeAsNumber

Array.prototype.mergeAsNumber = function (array) {
    var sortFunction = function (a,b) {return a-b},
        commonArray = this.concat(array).sort(sortFunction),
        element,
        suchNumberAnotherIndex;
    
    for (var i = 0, l = commonArray.length; i<l; i++) {
        element = commonArray[i];
        suchNumberAnotherIndex = commonArray.indexOf(element, i+1);
        while (suchNumberAnotherIndex > -1) {
            delete commonArray[suchNumberAnotherIndex];
            i++;
            suchNumberAnotherIndex = commonArray.indexOf(element, i);
        }
    }
    
    return commonArray.sort(sortFunction);
}