"'gt' refers to the size of the string"
No. In your code, gt looks at "dictionary sequence".
If string size/length is what you wanted, say length($str) expliciltly.
use Data::Dumper;
my @foo = ("abc", "bc");
print Dumper(sort bar1 @foo);
print Dumper(sort bar2 @foo);
sub bar1 {
return $a gt $b;
}
sub bar2 {
return length($a) gt length($b);
}
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