Daniel Gross wrote:
> Seems to work. It doesn't generate a syntax error. So, value elements
> within a hash are always references?
no, but they are always scalars :)
> BTW, in your opinion would this also work when $dirHash{$prefix} is
> undefined (i.e. when no key was defined yet?)
perl has a feature called autovivification, that usually Does The
Right Thing to create whatever you are trying to create.
Here is a tested full example from your original post:
<code>
#!/usr/bin/perl
use strict;
use warnings;
my @dirArray = qw(
abcdStuff1
acdeStuff1
abcdStuff2
aaaaStuff2
acdeStuff2
aaaaStuff1
);
my %dirHash = ();
foreach my $item(@dirArray) {
my $prefix = substr($item, 0,4);
push @{$dirHash{$prefix}}, $item;
}
use Data::Dumper;
print Data::Dumper->Dump([EMAIL PROTECTED], \%dirHash], [qw(*dirArray
*dirHash)]);
</code>
--
Alan F. Dickey - Interaction and Realization
http://www.intac.com/~afdickey
mailto:[EMAIL PROTECTED]
VOX: 908-273-3232 Cell: 908-334-0932
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