in reply to Re^2: Why does this hash remove duplicate lines
in thread Why does this hash remove duplicate lines

Yes, that's true. Negative numbers happen to be irrelevant to the example, which is the reason I didn't mention them. The clarification may help, but I didn't see that as the OP's source of misunderstanding the example.
  • Comment on Re^3: Why does this hash remove duplicate lines

In Section Seekers of Perl Wisdom