in reply to compare two strings and return only he unique values.
You can also use List::Compare
my ($str1, $str2) = ("ABCDE", "BCDEO");
my @list1 = split //, $str1;
my @list2 = split //, $str2;
my @unique = List::Compare->new(\@list1, \@list2)
say "Unique letters: @unique";
Once (shame on you!)
Twice (shame on me!)
More often than I'd like to be
All the time
Just when answering stupid polls
Who you callin' a fool?
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