I have a hash of $var => $cnt. I want to flatten this to an array of $var's in which each $var occurs $cnt number of times. I implemented this via map() and a subroutine that expands a $var into an array occuring $cnt number of times as follows: 
my @flat = map { exp_arr($_, $hash{$_}) } keys %hash;

sub exp_arr {
    my $var = shift;
    my $cnt = shift;
    my @arr;
    for ( my $i = 0; $i < $cnt; $i++ ) {
        push @arr, $var;
    }
    return @arr;
}

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However, this looks like a lot of code to do something this trivial. There must be some inherent Perl feature that I'm missing that accomplishes this. Probably something akin to the x operator which repeats a scalar X number of times, or array slicing, or something to that effect.

In reply to Pushing Element Multiple Times to Array by atancasis

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