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Re: comparing array elements to hash keys

by CukiMnstr (Deacon)
on Jul 02, 2003 at 14:21 UTC ( #270812=note: print w/replies, xml ) Need Help??

in reply to comparing array elements to hash keys

you have to change the foreach in your inner loop for a while (right now it is only iterating once over the hash), or change the foreach inner loop to use keys %hash instead of each %hash (so it iterates over every key). Also, you are using == to compare the elements in the array to the keys in the hash, so this will only work for numeric values. You could try something like this instead:
foreach my $thing (@array) { if ( exists $hash {$thing} ) { push @new_array, $hash {$thing}; } }

hope this helps,

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