I agree with AnomalousMonk that it'd be best if you could explain further what you want to accomplish, with expected output etc. But maybe this is a start:

use warnings;
use strict;
use feature 'say';

my $h = {a=>1, b=>2, c=>3, d=>4};

for my $k1 (keys %$h) {
    my $v1 = $h->{$k1};
    say "external $k1 => $v1";
    while ( my ($k2, $v2) = each %$h ) {
        say "  internal $k2 => $v2";
    }
}

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In reply to Re: Nested iterations throgh hash by haukex
in thread Nested iterations throgh hash by luxs

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