Thanks, that helped! Even tough I don't understand what " for my $i (0 .. $#arr)" means, changing
sub reverseArray {
for(my $i=0;$i<scalar(@_);$i++){
@{$_[$i]} = reverse @{$_[$i]};
}
}
to
sub reverseArray {
my @arr = @_;
for(my $i=0;$i<scalar(@arr);$i++){
$arr[$i] = [reverse @{$arr[$i]}];
}
}
did the trick!
So, if I understand it correctly, a subroutine can change variables from the function it was called from.
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