Yeah the stuff I've seen looks to me like poorly written C# consciously written in a Web-ignorant style, thoroughly at odds with whats going on in the Web/JS community generally.

Anyway totally agree on the typing angle, navigation/refactoring/discover-ability aspects are useful and I loved the implicit interface approach in Dart. However I wonder whether some of those features won't be added to JS over time (where possible in such a dynamic language). Ta for link to flow, will give it a look thanks.