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Node.js is a server framework for quickly building small systems like server daemons with good performance and security. It's interesting how much over-engineer

• boxed 2y ago
  It's so easy to blame JS though. I recently rediscovered that it can't do divide by zero right. And it even does it wrong in two different ways: > 1/0 Infinity > 0/0 NaN
  • spc476 2y ago
    That's not the fault of JavaScript, but of IEEE-754 floating point math. The behavior you're seeing is per design.
    • boxed 2y ago
      That's a huge copout, and thankfully not one Python follows.
  • HKayn 2y ago
    JavaScript's behaviour in this case is consistent if we accept that JavaScript would always rather compute the next-best gibberish than throw an error. While `1 / 0` is not a valid operation, it can be interpreted using limits. If `x` approaches 0, then `1 / x` will approach `Infinity`, hence JavaScript's result of this operation. But with `0 / 0`, there is no unambiguous interpretation, so JavaScript defaults to `NaN` as its indicator for when a number is expected, but not received in valid form. I'm not defending this behaviour of the language, just pointing out that there aren't "two different ways" of wrong behaviour at display here.