> JS MVC frameworks: MVC in JS is almost always overkill. Unless your bread and butter is modern web apps (ie. json driven sites with websockets/long polling)

> JS MVC frameworks: MVC in JS is almost always overkill. Unless your bread and butter is modern web apps (ie. json driven sites with websockets/long polling) which, at least in my neck of the woods, seem to be rapidly becoming the norm. Without backbone.js it would not be possible for me to do any of my current client's projects on the timelines I'm doing them, simple as that. That said, learning every client-side mvc is probably a mistake too. Just research them and learn the one that you feel is best.