Re: lazy creation of a hash

Do you actually need to distinguish the empty hash from an "undefined" state? If not, just use a scalar truth test, which returns only false if the hash is empty.

Perl 6 - second systems done right

Comment on Re: lazy creation of a hash

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Re^2: lazy creation of a hash by John M. Dlugosz (Monsignor) on May 12, 2011 at 12:36 UTC
Yes, in this case I can be sure that the populated hash is not empty. I suppose that should be fast/efficient if done in boolean context.	[reply]
Re^3: lazy creation of a hash by moritz (Cardinal) on May 12, 2011 at 12:37 UTC
I suppose that should be fast/efficient if done in boolean context. Short answer: yes. Long answer: What is the most efficient way to see if a hash is empty? Perl 6 - second systems done right	[reply]