On Thu, Oct 04, 2001 at 04:34:17PM -0700, Curtis Poe wrote:
> --- "Collins, Joe (EDSI\\BDR)" <[EMAIL PROTECTED]> wrote:
> > $value=$myhash{$mykey};
> > if $mykey is not a valid key, then $value still becomes ""
>
> If $mykey does not exist in the hash, then trying to access it will
> "autovivify" that hash element (with no warnings, even if you have them
> on) and the value will be undef, not the empty string.
That's slightly incorrect, as well. The key will not be autovivified; if
the key doesn't exist, accessing it won't make it exist.
So, if the key $mykey doesn't exist then $value will be undef, and %myhash
will remain unaltered.
Michael
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Administrator www.shoebox.net
Programmer, System Administrator www.gallanttech.com
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