Typescript is great because without it, you still need to determine a library’s types. It’s just that the type checking is only done in your head. If you need

Typescript is great because without it, you still need to determine a library’s types. It’s just that the type checking is only done in your head. If you need to add types to a JS library that still doesn’t have them for some reason, you’re actually doing less work than if you didn’t add them. Add the types as needed and you’re good.