I have array in format 
my @groups = [ [ 23 ], [ 22 ] ]; 
my $perms = join ',', @groups;
print Dumper $perms;

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It gives me result as array : $VAR1 = 'ARRAY(0x7f82c3792848)';

How can I flatten this kind of array into string. Thanks!!

In reply to Joining array into new string by kris1511

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