Re: Hash slice

[Rob Dixon]

Beginner wrote:

Hi all,

Is it possible to make a hash slice like so

my %hash;
@[EMAIL PROTECTED] = [EMAIL PROTECTED];

My efforts suggest not:

#!/bin/perl

use strict;
use warnings;
use Data::Dumper;

my @keys = qw(fe fi fo thumb);
my @vals = 1..4;
my %hash;
@[EMAIL PROTECTED] = [EMAIL PROTECTED];

print Dumper(\%hash);

$VAR1 = {
          'ARRAY(0x226d54)' => [
                                 1,
                                 2,
                                 3,
                                 4
                               ]
        };

Am I missing something or isn't this possible?

Hey Dermot

It's certainly possible, but I'm not sure why you've taken a reference
to your key and value arrays. [EMAIL PROTECTED] is a single scalar value, as is
[EMAIL PROTECTED], so you're creating a single hash element. Perl has had to
stringify the reference to @keys as Perl hash keys must be strings.
The hash value is a reference you your @vals array which contains the
values 1 through 4 as Dumper shows.


That you need is simply

 @[EMAIL PROTECTED] = @vals;

which you will find has the effect you expect.

HTH,

Rob

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