Hi monks,

A very Happy New Year to all.

Here's a question to kick off the new year: I've two arrays containing an equal number of digits. I want to multiply the digits from array1 with the corresponding digits from array2. With warnings enabled, I get the "Use of uninitialized value in multiplication (*)" warning. I try to fix that in the following code. 

   my $sum = 0;
   for (0..@weights) {
      $weights[$_] = $weights[$_] || 0;
      $digits[$_] = $digits[$_] || 0;
      $sum += $weights[$_] * $digits[$_];
   }

[download]
That suppresses the warning but should I be worry about it in the first place? Is there a better way to do the above?

Thank you so much in advance :)

In reply to A better way than || by Anonymous Monk

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