Re: Pick any key from a very large hash

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Re^2: Pick any key from a very large hash by FloydATC (Deacon) on Jul 11, 2009 at 22:25 UTC
Yes, by using `keys` or `values`... exactly what I don't want :-) -- Time flies when you don't know what you're doing	[reply] [d/l] [select]
Re^3: Pick any key from a very large hash by hobbs (Monk) on Jul 12, 2009 at 11:25 UTC
"In particular, calling keys() in void context resets the iterator with no other overhead."	[reply]
Re^4: Pick any key from a very large hash by QM (Parson) on Jul 15, 2009 at 21:36 UTC
"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	[reply] [d/l] [select]
Re^3: Pick any key from a very large hash by jwkrahn (Abbot) on Jul 11, 2009 at 22:27 UTC
Or: "it can be reset by reading all the elements from the hash"	[reply]
Re^2: Pick any key from a very large hash by psini (Deacon) on Jul 11, 2009 at 22:27 UTC
I don't think your suggestion is a viable option when the hash contains millions of keys... Rule One: "Do not act incautiously when confronting a little bald wrinkly smiling man."	[reply]
Re^3: Pick any key from a very large hash by ikegami (Patriarch) on Jul 13, 2009 at 19:18 UTC
Calling `keys` in void context resets the iterator and does nothing else. The number of keys in the hash is of no import.	[reply] [d/l]
Re^4: Pick any key from a very large hash by psini (Deacon) on Jul 13, 2009 at 21:50 UTC
Oh, sorry, I didn't know that. Rule One: "Do not act incautiously when confronting a little bald wrinkly smiling man."	[reply]