That isn't the point. JS does something the others can't. It has flexibility and a community that's larger than anything you know plain and simple. Btw, i am a grumpy non JS developer, or used to be. Started with assembler, c/c++, then c#. That sums up most of my professional career. I was wrong judging JS too fast, that's all i'm saying. Many of my colleagues are still grumpy about it, they'll get over it over stay behind. If they do move on they will see what they're missing soon enough.