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Re: Re: Perl Idioms Explained - keys %{{map{$_=>1}@list}}by RMGir (Prior) |
on Aug 04, 2003 at 15:34 UTC ( [id://280707]=note: print w/replies, xml ) | Need Help?? |
I'm not disagreeing, but I am curious. Why is it cheaper? One less node allocated? (Oh, I think I see... PL_sv_undef gets reused instead of a new SV?)
This sounds like a job for those perl internals diagrams someone did at some point... Wish my memory was better.
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