http://www.perlmonks.org?node_id=541689


in reply to Re: Compare Values in HoH
in thread Compare Values in HoH

Small logic error which you catch after the fact in your output loop.

Assuming unique values in each file, your loops can be reduced to

foreach my $entry (@file1) { $index{$entry} = 1 } foreach my $entry (@file2) { $index{$entry} += 2; }

Not assuming unique values, to avoid "screwed up" entries, it could be reduced to this

foreach my $entry (@file1) { $index{$entry} = 1 } foreach my $entry (@file2) { # '||0' is to still the warnings under 'use warnings' $index{$entry} += 2 if (($index{$entry}||0) < 2); }

Nothing big.

--MidLifeXis