On: Functions and algorithms implemented purely with T...

[jenscow]

There's Dart.

But at the time, many complained of the lack of jQuery support and needing to transpile to support other browsers, so it didn't get the interest it deserved.

[troupo → jenscow]

I don't think Dart is meaningfully better than JS (for some vague definition of better)

[jenscow → troupo]

It provides opt-in type safety. Unlike TS, it's not a language extension.