I love TypeScript for back-end work. Node.js is astonishingly fast, thanks to V8. TS is concise, has a wonderful/expressive type system, can share code/types with the front-end, and has libraries for damn near everything.
It's the easy choice for new projects. And yeah, if/when it's time to optimize later, and the raw performance of V8 ain't enough, you can reach for threads, WASM, or Rust. 10/10 experience.
It's the easy choice for new projects. And yeah, if/when it's time to optimize later, and the raw performance of V8 ain't enough, you can reach for threads, WASM, or Rust. 10/10 experience.