Re: How can I assign the elements in an array to only the key values in a hash?

Q: I have an array that keeps returning matches in a string, each match must be inserted into a hash as an empty key (..)

If i judge by your code, you want empty values. Anyway empty keys does not make sense. Because each key of a hash must be unique within the hash set of keys

$hash{$_}= '' for @array;

usually conunting number of matches for each strings makes more sense:

$hash{$_}++ for @array;

-- stef

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Re: Answer: How can I assign the elements in an array to only the key values in a hash? by Benedictine Monk (Novice) on Apr 01, 2001 at 08:47 UTC
If you're just trying to remove duplicates from the array (which I'm not sure you are), you can do this: my @array = getMatches(); my %tmp; @tmp{@array} = (undef) x @array; @array = keys %tmp; undef %tmp; This takes advantage of Perl's hash slices and can be incredibly useful for set-like operations. Jerry Goure	[reply]