Chops off the last character of a string and returns the character chopped. It is much more efficient than
s/.$//s because it neither scans nor copies the string. If VARIABLE is omitted, chops
$_ . If VARIABLE is a hash, it chops the hash's values, but not its keys, resetting the
each iterator in the process.
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.
See also chomp.
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