I had a large NodeJS web backend that my teammate and I switched to TS . It just felt like JS but with extra steps. The type system is rather manual (compared t

I had a large NodeJS web backend that my teammate and I switched to TS . It just felt like JS but with extra steps. The type system is rather manual (compared to say Rust), and it didn't catch any mistakes I wouldn't have noticed on my own or caught in integration testing. It also complicated the toolchain all the way through. But we rolled with it. The next project was forked from the same codebase and had an even more complex feature set. I took everything back to JS and never regretted it. I've done other backends in Python, Erlang, Java, Golang, and C++. Done mobile apps in ObjC and Swift; not directly comparable, but JS (via React Native) was also nicer like night and day.