The whole point of JavaScript is that it's dynamically-typed. If you want static typing just use C++ or any other established programming language.

> it's dynamically-typed

Yet, most of the code people write has statically defined types.

Anyway, the whole point of JavaScript is that it runs on the browser. Outside of that, it has no strong points. Even though most of them are not weak enough to immediately abandon the language, its type system is one of the weakest.

Javascript's dynamic typing is fine if you aren't a really shitty programmer.

I’m not sure how people are supposed to do that in the browser. This feels like an excessively dismissive comment.

Have you not heard of WebAssembly?

WebAssembly is not without tradeoffs either. I'm not an expert, but it's often heavier due to bundling the native language's stdlib; it's annoying to interop with the browser environment because that's still JavaScript-tailored; it's also just hard to write code that can be compiled into WASM (e.g. in Rust, it needs to be `#[no_std]`)

If you're doing real work, you don't interact with the browser.

If you're just glueing things together between APIs, then JavaScript is fine, and static typing would just get in the way.