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Re: Test Presence of Data in Hash

by davorg (Chancellor)
on Jul 20, 2009 at 20:41 UTC ( [id://781760] : note . print w/replies, xml ) Need Help??


in reply to Test Presence of Data in Hash

This doesn't address the interesting questions you've raised about hashes. I'm sure that others will have good explanations of that, but I just wanted to point out that the best way to check if a hash contains any data is to use the keys function. In scalar context keys will return the number of keys defined in the hash.

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