Agreed. And importantly, the fragmentation of the Javacript ecosystem is on purpose: https://github.com/extensibleweb/manifesto https://github.com/extensibleweb

Agreed. And importantly, the fragmentation of the Javacript ecosystem is on purpose: https://github.com/extensibleweb/manifesto https://github.com/extensibleweb/manifesto I think about the fragmentation that shows up in the form of multiple frameworks and patterns as a necessary part of that. It's not something that I want to fix. So to draw a line and say, "extending core Javascript features is fine, but compiling into Javascript isn't" -- I just don't get that. Typescript is a testing ground not just for typed programming in general, but also for features like decorators and meta-programming features. It's good to have a diversity in what people are building and using, that's how we get real world data on what works.