This works too: 
my $ranksUsed = [ [ 1 ], [ 2 ] ];
  # No intermediate array or loop...
my %ranksUsed = map {$_->[0] => undef} @$ranksUsed;

[download]
Produces: 
$VAR1 = {
          '1' => undef,
          '2' => undef
        };

[download]

        "You're only given one little spark of madness. You mustn't lose it."         - Robin Williams

In reply to Re: array of arrays to hash by NetWallah
in thread array of arrays to hash by bitman

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