in reply to Re^2: Consise way to filter out keys with undef values from a hash slice?
in thread Consise way to filter out keys with undef values from a hash slice?

Hi

You might be interested in this older thread

Using hashes for set operations...

and this particular post

Re: Using hashes for set operations...

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

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