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Greetings Monks,
I wanted to sort an array of hashes based on the size of each hash (i.e., the number of the key/value pairs in each hash) using something like:
#!/usr/bin/perl use strict; my @AoH = ( {a => 1, b => 2, c => 3}, {a => 1, b => 2}, {a => 1, b => 2, c => 3, d => 4}, {a => 1} ); my @AoH_sorted = sort { keys(%{$AoH[$b]}) <=> keys(%{$AoH[$a]}) } @AoH +; foreach my $i (0 .. $#AoH_sorted) { print "$i\t"; if (exists $AoH_sorted[$i]) { my %hash = %{$AoH_sorted[$i]}; foreach my $key (keys %hash) { print "$key\t"; } } print "\n"; }
However the above script produces the following output which obviously has not been sorted:
0 c a b 1 a b 2 c a b d 3 a
Any ideas on how to get this sort to work? Thanks!

In reply to Sorting an array of hashes by Boghog

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