Just adding my two cents. Wanna be a good JS dev? Go play around with a lisp. Like Clojure for a month or two. Get comfortable with functional programming. Then come back to JS. So many people come from a OOP to JS and they have a bad time with it. JS is more like a lisp with C syntax than it is a traditional OO language. Learning Clojure, not only improved my JS abilities, but just my over all programming maturity. IMO. Additionally, I agree with the author about reading books, and libraries. It's always good advice for any language.