s/\n//because it neither scans nor copies the string. If VARIABLE is omitted, chops $_ . Example:
You can actually chop anything that's an lvalue, including an assignment:
If you chop a list, each element is chopped. Only the value of the last chop is returned.
Note that chop returns the last character. To return all but the last character, use substr($string, 0, -1) .