Node came at a time when client side JS was really starting to take off. I can't speak much about Go or Erlang, but I suspect a lot of it has to do with marketi

Node came at a time when client side JS was really starting to take off. I can't speak much about Go or Erlang, but I suspect a lot of it has to do with marketing and some lucky momentum. It also helps that tools like Grunt are Node based, causing frontend devs to look to Node when they need to stand up a back end. At least, Grunt was a pathway into Node for me anyway.