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Passing Parameters

• A function receives its parameters through the @_ special array.
• The parameters are received in the order that they were passed.
• Lists are flattened:

  my @array1 = (1 , 2 , 3);
  my @array2 = (4 , 42);
  print_sum(@array1 , @array2);
  # inside print_sum, @_ = (1 , 2 , 3 , 4 , 42)
  # This is the same thing that happens when you write:
  my @array3 = (@array1, @array2);
  

Offer Kaye. YAPC::Israel::2005.
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