It is, but does not need to be destructively so. Become an expert in a few, and competent in several (over time). If app dev is your thing, with Ruby/Rails and

It is, but does not need to be destructively so. Become an expert in a few, and competent in several (over time). If app dev is your thing, with Ruby/Rails and JS you probably can't go wrong. Pick up some PHP for when you (will) encounter it.