Re: Retrieve unique values from Hash of Hashes

To add to ikegami's solution, this is how you would print the unique names:

print "$HoH{$_}{user}\n" for (@unique_users);
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updated....

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Comment on Re: Retrieve unique values from Hash of Hashes Select or Download Code

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Re^2: Retrieve unique values from Hash of Hashes by ikegami (Patriarch) on Nov 10, 2009 at 04:49 UTC
There's a bug in my code. You seem to imply the bug is simply my choice of array name. I disagree. If that's the bug, we have redundant code (`$HoH{$_}{user}`). And simply put, it makes no sense to end up with a bunch of IP addresses when looking for unique users. My code should have been `my %seen; my @unique_users = grep !$seen{$_}++, map $HoH{$_}{user}, keys(%HOH);` [download]	[reply] [d/l] [select]