I’ve been writing Vanilla JavaScript with JSDoc annotations and using TypeScript as a type checker (as opposed to a compiler) for some of my hobby-projects, and

I’ve been writing Vanilla JavaScript with JSDoc annotations and using TypeScript as a type checker (as opposed to a compiler) for some of my hobby-projects, and it is amazing breath of fresh air from the bundler tool chains of the past. As pointed out by this proposal the JSDoc annotations are—to put it mildly—a bit cumbersome. The more complicated types are close to impossible to figure out how to write, if they are possible to write at all. And on Q&A forums I constantly have to translate between the two syntaxes in my head, since most of the audience will probably not understand the JSDoc syntax. Having a unified type annotation syntax which the runtime ignores will definitely make my life easier.