Is learning only one computer language enough to pursue a successful career?

Question

career goals

Answer 1

It can go both ways i know programmers who specialize in one language and are very successful. also knowing more than one male you a valuable asset to a company or the job market.

- Specialist more $$
- Well rounded $$

Think about it.

Answer 2

If you know the right language, yes. However, everyone here hires only web developers here, so I'm thinking to jump the ship.