I've tried Typescript a couple of times, and still not managed to "get in to it". I just find it too much overhead to value. That said, I do like code safety, and I like IntelliSense and I really like JSDoc! Turns out, you can use tsc with JSDoc 👍
https://medium.com/@trukrs/type-safe-javascript-with-jsdoc-7a2a63209b76