Show date with format
===

I have:

    var date = new Date();

and i have many formats:

    var one = 'yy-mm-dd';
    var two = 'dd.mm.yy';
    var three = 'dd/mm/yy';
    var four = 'mm/dd/yy';

Is possible to showing current date with this four formats? I know - i can use clause IF or SWITCH and set this, but maybe in JavaScript or jQuery without external libraries i can use this format as option?