custom ID ban

[filthy_freak_]

How does this

    asc = getAscii(char);
    return asc <= 57 && asc >= 48;

actually work?

Have a look at http://www.asciitable.com/

getAscii returns the ascii number for that char.

Then it checks if that number is between 48 and 57, which are the ascii numbers for 0-9.

EDIT: Sniped.