That would be my grep method
$pc = grep $testvalue eq $HASH{$_}, keys %HASH;
any ideas on how to create reverse hash quick?
This returns an odd number of elements:
my %BYNAME = map { { "$ALL{$_}" => "$_" } } keys %ALL;
> -----Original Message-----
> From: Timothy Johnson [mailto:[EMAIL PROTECTED]]
> Sent: Monday, May 20, 2002 5:08 PM
> To: 'Nikola Janceski'; Beginners (E-mail)
> Subject: RE: Fastest method with a hashes...
>
>
>
> The only other thing I can think of that you haven't mentioned is just
> cycling through the keys 'till you get one that matches,
> which is probably
> not the fastest approach, but if memory is a huge issue, it's
> probably one
> of the most efficient.
>
> foreach(keys %hash){
> if($hash{$_} = $myvalue){
> print "I've got a flying machine!\n";
> }
> }
>
> -----Original Message-----
> From: Nikola Janceski [mailto:[EMAIL PROTECTED]]
> Sent: Monday, May 20, 2002 2:03 PM
> To: Beginners (E-mail)
> Subject: Fastest method with a hashes...
>
>
> I have a hash as follows:
>
> PC1 => Nikola Janceski
> PC2 => Some Moron
> PC3 => Some Other Moron
> etc..
>
> I want to be able to get the key (PC#) using the value,
> what's the fastest
> method?
>
> What I can think of:
> a. have a reversed hash of the same info.
> b. use that funky module which makes hashes go both ways
> c. grep through the values and grab that.
> d. Your method here.
>
> THANX!
>
> Nikola Janceski
>
> Nature, to be commanded, must be obeyed.
> -- Francis Bacon
>
>
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