I used Dart for a project 1-2 years ago and really enjoyed it. It's a well designed language with an equally well designed standard library and already had fabu

I used Dart for a project 1-2 years ago and really enjoyed it. It's a well designed language with an equally well designed standard library and already had fabulous tooling (IDE support, package manager, debugger) back then. My hopes were that it could really replace JS at some point of time, because I'm not the biggest fan of JS in the ES5 incarnation. For me it was a little bit sad to see that Dart got almost no external traction since while Go got lot's of traction. I personally think Dart is the better language in most regards. Since then I have worked on a few non-web projects and now got back to building some bigger application with node, a browser frontend and typescript. With the current revisions of typescript I don't miss much from Dart, Typescript did a great job on building a type system that fits to Javascript and the ecosystem (available libraries, etc.) is huge due to seamless interoperability (export typescript as JS libraries and import all JS as untyped typescript). Therefore for me the appeal to use Dart instead of typescript in classical web applications is much lower then some years before. For other applications the choice of languages is already more then abundant. I don't think it would have been a bad move to introduce it as an Android application language, but I don't think that will happen due to all the existing code. I'm interested to see what will happen in the microcontroller domain, but this is a very slowly evolving domain where real changes happen rarly and everybody is stuck on C despite alternatives have been available earlier. Don't see a special appeal for raspberry PI like devices - these are more like PCs then really embedded stuff. You can run nearly anything you want there.