Typescript wins over Dart on Stackoverflow
stackoverflow.comThere are more questions about Typescript http://stackoverflow.com/questions/tagged/typescript?sort=ac... than Dart http://stackoverflow.com/questions/tagged/dart?sort=active.
It's true than Stackoverflow is a little bit biased towards MS, but Dart is a platform not just a language, so there's more room for questions there.
Maybe that means that people are having more problems with Typescript...?