Perl Programming/Keywords/exit
The exit keyword
editexit finishes the execution of the program after valuating EXPRESSION. It returns with this value.
Although exists can be called on arrays also, its behaviour strongly depends to the use of delete on arrays, having a much less clear behaviour.
Syntax
edit exit EXPRESSION
exit
Examples
editprint "Exists\n" if exists $hash{$key};
print "Defined\n" if defined $hash{$key};
print "True\n" if $hash{$key};