[abhijat]

There used to be reasonml but I'm not sure how active it is these days.

[wk_end]

ReasonML is just OCaml with a different syntax. It sort of very loosely resembles JS syntactically in that it's got curly braces, but that's about as far as the similarities go - about as much as Rust resembles C. The type system and language are very different from TypeScript or JS, and much more rigid.