When I read something like this:

"One of the problems we’ve had at &yet especially when working on large Backbone applications is a sane way to document the type of properties a model is supposed to contain.

Backbone models, by default, don’t enforce any structure. You don’t have to declare anywhere what properties you’re going to store. As a result, people inevitably start saving miscellaneous properties on models from within a view somewhere, and there’s no good way for a new dev starting in on the project to be able to read the models and see exactly what state is being tracked."

I really wish more people would try Dart. Maintaining structure, declaring types, readability... these things can be solved at the language level.