[jswny]

It’s not likely that any university is going to teach masters classes in JavaScript, that’s for sure. So you’d have to use a different language than JS anyway. Advanced topics you would learn like ML, computer vision, distributed systems, big data stuff all already have their languages that you have to use anyway and not many (if any) are JS.

Also, if you are going to be a React web developer, the theoretical/advanced stuff they teach you in an MS program is likely not going to be relevant at all to your actual career.

Source: current MS CS student.