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+1, it's become a mantra for me in any code I write that deals with foreign data (which is most of them). Really reshapes your thinking.

• cle 5y ago
  No rule of thumb should be a mantra. Parsing when you don’t need to induces unnecessary coupling, which can be quite undesirable in many scenarios. Like any technique, there are times when it’s worth it and times when it’s not.
  • clmay 5y ago
    Is "No rule of thumb should be a mantra" its own counterexample?
  • becuz99h 5y ago
    Only the Sith deal in absolutes