5 ms·

Contributor for Porffor here! I think this is a great comparison, but Porffor does technically support promises, albeit synchronously. It's a similar approach t

• frutiger 2y ago
  Not sure where you mean by synchronously but if you mean what I think you mean then that is not correct behaviour. This is important to ensure predicatibility. Eg. Promise.then(() => console.log(“a”)); console.log(“b”) must log [“b”, “a”] and not [“a”, “b”].
  • canadahonk 2y ago
    This type of test does work as expected. The "sync" means that it does not feature a full event loop (yet) so cannot easily support async I/O or some more "advanced" use cases.
    • spankalee 2y ago
      There's a WASI async functions proposal I think? Are you looking at supporting that so you don't have to bring your own event loop?
  • cowsandmilk 2y ago
    JavaScript doesn’t make the guarantee you are claiming here
    • fwip 2y ago
      What do you mean? Does JavaScript allow the `then` of a promise to execute before the contents of the promise?
    • jitl 2y ago
      Yes, it does. Promise continuations always run in the micro task queue per the standard. I guess if someone mutates the promise prototype it’s not guaranteed, but the spec does guarantee this order