Yet another way: 
use Algorithm::Loops qw( NestedLoops );

my @lists = (
   [qw( a b )],
   [ 1..7 ],
);

my @array = NestedLoops(\@lists, sub { 'log' . join('', @_) });

[download]

It's bigger, but it's very dynamic.

In reply to Re: Declare values in array using Regex by ikegami
in thread Declare values in array using Regex by perl177

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