I have a simple loop that tests for truth and assigns a result to a hash:

for my $discount (@discounts) {
  if ($discount == 1) {
    my $key_num = scalar keys %columns;
    $key_num++;
    $columns{$key_num} = 1;
  }
}

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The above %columns hash uses numbers as keys, if inside the if statement, count the number of keys, increment the result and assign the value to the hash.

This doesn't work for me, the value of $key_num is always the same, why doesn't this work?

BlackJudas

In reply to Hash key counting by blackjudas

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