> How has learning a new language helped you in your career?

I have a success story, I would not say it helped me in my career. but it made me more confident as a developer.

I was a full-stack PHP developer. In my free time, I always learn new languages (python, ruby, go, rust, OCaml, Clojure, and some Haskell). even now I kinda enjoy learning new stacks. its just fun for me.

For one of our projects (it's back 3 or 4 years ago), we used node. To that point, I never really looked deep into it as I was always busy with go and rust. turns out I was really productive from day one. while others had to do some soul searching.

In short, it made me a better developer and more confident.