I'd say it's definitely worth it. I wrote a blog post recently about my experiences learning and using TypeScript as both an app dev and a library maintainer f

I'd say it's definitely worth it. I wrote a blog post recently about my experiences learning and using TypeScript as both an app dev and a library maintainer for Redux: https://blog.isquaredsoftware.com/2019/11/blogged-answers-learning-and-using-typescript/ https://blog.isquaredsoftware.com/2019/11/blogged-answers-le... As part of that, I listed some of the tradeoffs and takeaways. In particular, I strongly recommend a "pragmatic 80%" approach to tackling TS.