MESSAGE
| DATE | 2002-06-23 |
| FROM | Ruben I Safir
|
| SUBJECT | Re: [hangout] perl hash value
|
On 2002.06.23 11:33 Billy wrote:
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> On Fri, Jun 21, 2002 at 10:24:31AM -0400, Ruben Safir wrote:
> >
> >
> >
> > This is covered int he Perl Classes given by NYLXS which are
> > inexpenssive.
> >
> > There is no such thing as an array of arrays. There is only
> > an array of array references
> >
> >
> > Something like this would work
> >
> > $myhash{
> > $reararyref1 => [$arrayref2 ,$arrayref3...]
> > $reararyref2 => [$arrref4, arrayref5 ],
> > $reararyref3 => [$arrref4, arrayref5 ],
> > $reararyref4 => [$arrref4, arrayref5 ],
> > $reararyref5 => [$arrref4, arrayref5 ],
> > $reararyref6 => [$arrref4, arrayref5 ],
> > $reararyref7 => [$arrref4, arrayref5 ],
> > $reararyref8 => [$arrref4, arrayref5 ],
> > }
>
> No it won't. You need to lose the $ in reararyref1,etc.
The $refarray1 will work (assuming it's defined as an array ref
> Also, this is better:
This is better but not what he asked for
>
> my $array_of_arrays = [
> [00,01,02,03],
> [10,11,12,13],
> [20,21,22,23],
> [30,31,32,33],
> ];
>
> >
> > $arrayref = \-at-myarray;
> > $arrayref2 = \-at-myarray;
> >
> > %hash = ($arrayref = > $arrayref2);
> >
> > or
> >
> > $hash[1][2] = value;
>
> Ruben, this surprisingly bad Perl code from you.
>
> Perl doesn't magically invent $hash[1] if you
> try to assign to $hash[1][2].
No an array
$$hash{mykey}[0][0] = That magically creates a hash ref if he wants
> Also, $hash[1][2] doesn't mean anything.
> If hash is a hash, then you have to use $hash{1}
> to get at it.. If hash is a hashref, you have
> to use $hash->{1} to get at it.
>
> If it's an array, use $hash[1], and calling
> an array "-at-hash" isn't what I'd call good
> programming practice. In any case,
> what you've written here is noninstructive
> to say the least.
>
>
> - --
> "The funk, the whole funk, and nothing but the funk."
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