[jarek-foksa]

If you are fronted web developer then you should defenitely read jQuery sources. There is a lot of patterns that you could borrow and reuse in your own JS libraries.

A good place to start is this interactive code viewer: http://www.keyframesandcode.com/resources/javascript/deconst... There is also a great presentation by Paul Irish ("10 Things I Learned from the jQuery Source"): http://www.youtube.com/watch?v=i_qE1iAmjFg