[mattmanser]

Have you seen the code the TS compiler spits out?

You do not want to work on that. It readable to an extent, but it's definitely not pleasant.

I don't think you could just go back.

[smt88]

If you're referring to generator-style async/await, you can change that now.

Otherwise you can just prettify it and be on your way.

Sure you don't want to go back, but that's the whole reason TS exists: writing JS with good organization and discipline is impossible at worst, full of boilerplate at best.