How to test if a value exist in a hash?

Question

Let\'s say I have this

#!/usr/bin/perl

%x = (\'a\' => 1, \'b\' => 2, \'c\' => 3);

and I would like to know if the value 2 is a ha

Answer 1

Shorter answer using smart match (Perl version 5.10 or later):

print 2 ~~ [values %x];