No, but GUI frameworks can generate it for you. Same goes for DOM access, for which there’s normally only a JavaScript API.

So, you’ll likely want to read JS, when researching what events or properties you can read/write for certain HTML nodes in the DOM, but with a mature GUI framework, you should not need to write any JS.

Incredibly powerful type system λλλ

And the best part, those two interop better than in native code.