TypeScript

TypeScript is a typed superset of JavaScript that compiles to plain JavaScript. We use TypeScript to write code that is easier to read and understand, although it is not as fast as JavaScript.

Some resources:

• TypeScript — The Basics (video)
• TypeScript with React (Udemy course)
• React & TypeScript: how to type hooks (a complete guide) — learn by looking! Lots of examples and tips on how to correctly use hooks with TypeScript.