While we've still got lots of catching up to do, I think Dart is doing pretty well given its youth. (I would include TypeScript in the above but unfortunately the language detection for it is broken so it reports a bunch of Qt C++ projects as TypeScript).
> I would include TypeScript in the above but unfortunately the language detection for it is broken
The broke seems to be intermittent only. The Groovy results seem to be permanently broken though - most of its results are multi-language projects where Groovy is used by a single Gradle build script.