[tkubacki]

I don't want to troll here but "very compatible" sounds like MS best days of EEE - Typescript still IS a different lang. Question is what if future Javascript will go in a different direction than todays Typescript ?

Typescript main feature is tooling but I would rather go with lang where I'm not second class citizen on non-windows (eg. Dart's editor works on Windows/OSX/Linux)

[nightski]

Do you really feel JavaScript has that luxury? Seeing as how widely deployed and used it is I feel that it can't go in a completely different direction anytime soon.

[tkubacki]

Not JavaScript, but Typescript. What if Typescript will implement now features incompatibile with future JS ?