Comment by monfera

> JSDoc _is_ TypeScript

This is surprisingly true in a way. TypeScript is not a language(1), it's primarily a linter-assisting overlay atop of an actual language, JavaScript. Also, there's a linter that outputs and bundles JS, shedding the alien type annotations and also injecting its own, very partial runtime.

So, JSDoc is just a linter/documenter aid. And so is TypeScript.

(1) TS is not a language: it has no spec, no reference documentation. It defines no behaviors, in particular, no runtime behaviors. It sits atop of various JS versions, layering over them in unspecified ways. TS is a linting layer, and also is a hack.