Neither ReasonML nor BuckleScript are really OCaml descendants. ReasonML is a different syntax for OCaml, with even closer match than CoffeeScript 1.x had to JS

Neither ReasonML nor BuckleScript are really OCaml descendants. ReasonML is a different syntax for OCaml, with even closer match than CoffeeScript 1.x had to JS. Compiled ReasonML code cannot be distinguished from code that was written in OCaml. BuckleScript OTOH is a set of forks of older compiler versions which have a JS backend. It works with both Reason and OCaml syntax. ReasonML therefore is much closer to the revised OCaml syntax (a failed previous alternate syntax) than it is to its own language.