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  • Let's say a2_string is not defined. How do I go about printing just foo(a1_string, a2_string) without it giving an error that a2_string is undefined. Commented Sep 14, 2021 at 17:00
  • what would be the advantage of the or statements assigned? wouldn't they be covered by the default values in the function signature anyways? Commented May 4, 2024 at 22:30