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Think about Loose Coupling

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( #3333=superdoc: print w/replies, xml ) Need Help??
Here are two ways to do it.
use warnings; use strict; my %hoh = ( kevin => { age => "12", favorite_color => "blue", gender => "boy", }, john => { age => "11", favorite_color => "green", gender => "boy", }, lisa => { age => "11", favorite_color => "pink", gender => "girl", }, sara => { age => "13", favorite_color => "purple", gender => "girl", }, shelly => { age => "12", favorite_color => "purple", gender => "girl", }, ); my $num_12 = grep { $_ == 12 } map { $hoh{$_}->{'age'} } keys %hoh; my $num_alt = grep { $hoh{$_}->{'age'} == 12 } keys %hoh; print "Num 12: $num_12\n"; print "Num 12 alt: $num_alt\n";

In reply to Re: Find number of unique values in hash by saberworks
in thread Find number of unique values in hash by rethaew

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