Learning more and more about JavaScript will give you diminishing returns after a while. Once you understand prototype-based inheritance, common patterns and i

Learning more and more about JavaScript will give you diminishing returns after a while. Once you understand prototype-based inheritance, common patterns and idioms, and how objects and integers work and have gone through the language spec, you might be better off as an individual starting to learn something completely different. Dart and CoffeeScript are just other languages, so getting a rough handle on them should take an hour or so per. Just learning what concepts languages bring to the table (e.g. how does Dart do concurrency and how does that compare to JavaScript? How does it compare to Erlang?) can give you better insight into trends and the state of the art, and can give you new ideas about what is possible. IMHO, this is worth doing even if you're never going to use the language. As for "breaking standards", as long as my JS still runs on Chrome, I'm more than content no matter what Dart does.