Some of the examples are not working

[Stevemoretz]

    var formatter = new StringMask('#0,00%');
    var result = formatter.apply('001'); // 0,01%

the result is empty.

	var formatter = new StringMask('#0');
	var result = formatter.apply('123'); // 123

gives 12 instead of 123.

    var formatter = new StringMask('UUUUUUUUUUUUU');
    var result = formatter.apply('To Upper Case'); // TO UPPER CASE

give TO

I'm using in on react native (which shouldn't be important really but I thought it's better I mention it).