Practicality-wise, I'd suggest Javascript because you learn it once and you can use it for frontend (DOM, angular, react, etc) and backend (node.js), all of whi

Practicality-wise, I'd suggest Javascript because you learn it once and you can use it for frontend (DOM, angular, react, etc) and backend (node.js), all of which are very popular and highly-demanded. For learning-wise, it's not the best language to learn about language concept though..