function maxBy(array, func)
{
    var results = [];
    for (var key : var element in array)
    {
        results[key] = func(element);
    }
    return array[search(results, arrayMax(results))];
}
function maxBy2(array, func)
{
    var maximum = null;
    for (var element in array)
    {
        (maximum==null)
        ?
            maximum = element
        :
            func(maximum) < func(element)
            ?
                maximum = element
            :
                maximum = maximum; //C'est là que c'est WTF
    }
    return maximum;
}