Thank you!

Are there any non-ms solutions?

Funscript is not really MS - it's done by a third-party developer, and F# itself is open-sourced under a very liberal license, and runs well on Xamarin/Mono in OS X.

I don't think there are direct equivalents in other languages, although similar approaches exist. Checkout Elm for example:

http://elm-lang.org/Examples.elm