Re: modifying the key of hash of arrays

Keys themselves are immutable. However, you can assign the value held in a hash element to a new key and delete the old one.

"I am trying:
$b="blah"; $hasharr{$rephead}=$b; #but i think i am accessing the array rather than the key.
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Yes, you are writing "blah" into the value of the hash key/value pair, overwriting the anonymous array you had stored there.

Here is what you need to do:

$hasharr{$newkey} = $hasharr{$rephead};
delete $hasharr{$rephead};
[download]

Dave

"If I had my life to do over again, I'd be a plumber." -- Albert Einstein

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Re: Re: modifying the key of hash of arrays by hardburn (Abbot) on Oct 16, 2003 at 13:41 UTC
delete returns the value of the key it deleted, so you actually only need: `$hasharr{$newkey} = delete $hasharr{$rephead};` [download] ---- I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident. -- Schemer `:(){ :\|:&};:` Note: All code is untested, unless otherwise stated	[reply] [d/l] [select]