I don't think this is correct, as the try catch will only catch errors that happen while returning the promise, not awaiting it; you need to do this:

    const result = await (async () => {
      try {
        return await funcThatReturnSomeType();
      } catch (err) {
        doSomethingWithErr(err);
      }
    })();

You may be right, proving the old adage that the best way to get an answer on the internet is to post a wrong answer ;-)

Iffys are a nice go-to in ts in general, because type inference is so handy and I'd rather not have a big pile of typed `let`s at the top that I have to assign into later. Even something as simple as a switch plays nicer if you iffy it and use it like an expression (similar to a match is rust)

That is so much harder to read though...