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Re^4: Pick any key from a very large hash

by QM (Parson)
on Jul 15, 2009 at 21:36 UTC ( #780482=note: print w/replies, xml ) Need Help??


in reply to Re^3: Pick any key from a very large hash
in thread Pick any key from a very large hash

"In particular, calling keys() in void context resets the iterator with no other overhead."
Unfortunately, that's on the keys entry, and not on the each entry, which it seems to be more relevant to. If I'm using keys without each, why do I care if keys resets the each iterator?

Granted, a little digging would have found this. And perhaps the OP's avoidance of keys caused the miss.

-QM
--
Quantum Mechanics: The dreams stuff is made of

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[hippo]: The more I look at this code, the more $x is a plain old scalar and the more this condition will never be true. I'm calling it a bug at this point.
[hippo]: Thanks for your input which has soothed my sanity (a little)
[Corion]: Eily: Sure - if you force both things into stringy things, then you break that magic. But that would also mean that you changed the expression, as now $x = 0.00 will be true instead of false as it were before
[Corion]: Ah no, at least in my feeble experiments that doesn't change the meaning
[Corion]: We sell sanity in small packages ;)
[Eily]: oh, boolean context uses the "" overload if no bool overload has been defined
[Eily]: (I wondered if overloading bool was actually necessary)

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