Maybe this should be a nother top-level question, but can you tell me know you knew to promote my string to an array? I was playing with subroutines and arguments, and I found that all these generated the same answer (5):

my $a = 2; 
my $b = 3;
print &add($a, $b) . "\n";

my $opt = "$a, $b";
print &add(eval($opt)) . "\n";

my @opt = ($a, $b);
print &add(@opt) . "\n";

exit;

sub add {
   my ($x, $y) = @_;
   return ($x +$y);
}

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Another area my knowledge is lacking is the dash notation for the options (-font => 'courier', for example); is that common in other areas of perl or specific to Tk?

In reply to Re^3: tk option+value in variable? by cniggeler
in thread tk option+value in variable? by cniggeler

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