E.g. Learn how frameworks are built and what design patterns they implement. http://en.m.wikipedia.org/wiki/Software_design_pattern http://en.m.wikipedia.org/wi

E.g. Learn how frameworks are built and what design patterns they implement. http://en.m.wikipedia.org/wiki/Software_design_pattern http://en.m.wikipedia.org/wiki/Software_design_pattern could be a good place to start, if only to get ideas on more things to learn about. You don't have to know a language amazingly well to start picking apart a framework, but it might be helpful to be tenacious enough to go look up and play with the programming concepts they're using which you don't yet understand. The "architecture of open source applications" books are a good read to get an idea of how bigger pieces of software work, but none of it is JS IIRC.