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One way would be by inverting the hash and looking things up by value, as described in perlman:perlfaq4 (see How do I look up a hash element by value?).

Another way, of you are only interested in knowing if the value is in the hash, without knowing the key, could be:

$is_in_hash=grep /^Superman$/,values(%hash);
This is not particularly space efficient if the hash is large. See also the second solution suggested in the FAQ mentioned above.

--ZZamboni


In reply to Answer: How do I check to see if a value in a hash is equal to something? by QandAEditors

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