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Re: if (defined %hash) deprecated

by Rudolf (Monk)
on Oct 15, 2012 at 16:13 UTC ( #999112=note: print w/ replies, xml ) Need Help??

in reply to if (defined %hash) deprecated

This is definetly one of those things that I aswell have wondered about. I've been forced to search the hash to see if any items where inside (or check it's buckets by assigning a scalar). Knowing that (%hash) acts like it should is a nice tidbit! thanks for the post.

Comment on Re: if (defined %hash) deprecated
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Re^2: if (defined %hash) deprecated
by AnomalousMonk (Abbot) on Oct 15, 2012 at 19:02 UTC
Re^2: if (defined %hash) deprecated
by Ralesk (Pilgrim) on Oct 16, 2012 at 08:12 UTC

    By assigning to a scalar or by checking truthiness, you’re forcing a scalar context, so it can be expected to behave the same – that is, return a falsy value (0) when empty and non-falsy when not (and all the bucket counts are non-falsy). Same goes for arrays which report number of elements when not wantarray.

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