[voodoomagicman]

I agree - I definitely think its worth exploring a few. A good first framework to try is Backbone.. Backbone would not be my choice if I were starting a serious new project today, but because it is small, simple, and has very approachable and well annotated source code it is an easy framework to pick up and understand deeply. I would recommend reading through and then implementing a simple example like a to-do list, and then taking an hour to read through the annotated source.

After doing a small project with backbone, other frameworks like react + flux / angular or ember will be easier to pick up, and the tradeoffs they make will be easier to understand.