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Re: Iterating over verbatim hash reference

by Ratazong (Monsignor)
on Jan 21, 2010 at 14:17 UTC ( [id://818727]=note: print w/replies, xml ) Need Help??


in reply to Iterating over verbatim hash reference

See Re: Why is "for" much slower than "while"?: by using for instead of while you don't create the hash again in each loop.
HTH, Rata

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Re^2: Iterating over verbatim hash reference
by rovf (Priest) on Jan 21, 2010 at 14:26 UTC
    I thought about using for, but how do I loop in this way over a hash, so that the key-value association is maintained? Of course I could do something like 

    for ([qw(key1 val1)],[qw(key2 val2)],....) {
  my $key=$_->[0];
  my $val=$_->[1];
  ...
}

    [download]
    but this too is not quite a response to my original problem, which is, looping over a hash. Or maybe I misunderstood you? Could you give some example?

    -- 
    Ronald Fischer <ynnor@mm.st>
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