Question

I have a little problem with some hashes.

if i have a hash containing, John,John,John,Bob,Bob,Paul – is there then a function that can return just:

John, Bob, Paul.

In other words i want to get all different values(or keys if value is not possible) – but only once :).

I hope u understand my question, thx 🙂

Answer 1

Something like this may help you:

use List::MoreUtils qw{ uniq };

my %hash = ( a => 'Paul', b => 'Paul', c => 'Peter' );
my @uniq_names = uniq values %hash;
print "@uniq_names\n";

Keys are uniq always.