[kubb]

What I would need is a statically typed language that has first class primitives for working with untyped data ergonomically.

I do want to be able to write a dynamically typed function or subsystem during the development phase, and „harden” with types once I’m sure I got the structure down.

But the dynamic system should fit well into the language, and I should be able to easily and safely deal with untyped values and convert them to typed ones.

[promiseofbeans]

So… Typescript?

[whizzter]

Yes, the sad part is that some people experienced early TypeScript that for some reason had the idea of forcing "class" constructs into a language where most people wasn't using or needing them (and still aren't).

Sometimes at about TypeScript 2.9 finally started adding constructs that made gradual typing of real-world JS code sane, but by then there was a stubborn perception of it being bad/bloated/Java-ish,etc despite maturing into something fairly great.

[kubb]

I like Typescript :)