My favorite T-shirt design from the conference:

   "1" != 1
   deal with it

Anybody who is considering adapting TypeScript should take a look at where Dart is, because the tooling is way ahead of what TS can offer. The language is not a JS-alternative anymore, rather an entire ecosystem of tooling both for development, debugging and monitoring, with a huge focus on the web (Angular2.dart) and mobile (Flutter).