Typescript is awesome!!!
The creator of it answers “why typescript” in a video[1] with a hilarious answer which includes his observation that large javascript codebases become read only :-D
I’m giving a talk on typescript Friday. Some good stuff to understand is index signatures for object lookups, union types, intersection types, combining index signatures with named properties, and compile time immutability with readonly, Readonly<T>, ReadonlyArray<T>, ReadonlyMap<T>.
The language is so much fun to both write and read. There’s a lot of depth to it as well. Excited to get to use it.