The answer to "is {{tool}} worth it" is almost always "sometimes"

Typescript is a wonderful tool for many situations. Typescript may not be needed for all situations. There's upfront cost to configuration and tooling. But you get type safety and automatic documentation.

In all my new non-trivial projects, I default to typescript. It has caught so many issues and saved me a lot of time. Not having it feels like driving without a rear-view mirror. But, if I'm just writing a little script, I might omit it.