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Re:Announcing BuckleScript 1.0 by Drup on Thursday September 01, 2016 @04:18AM (#12403723)
People gave you the part in favor of bucklescript, so I'll give you the other side of the story:

bucklescript doesn't respect the OCaml memory model and runtime semantics, which makes it incompatible with some part of the ecosystem.

Js_of_ocaml already has various features that bucklescript doesn't have: dynlink, support for concurrency libraries such as lwt and async, etc. It's also much more stable and battle-tested.

Re:Announcing BuckleScript 1.0 by hongbo_zhang on Thursday September 01, 2016 @09:14AM (#12404958)
to be precise, Js_of_ocaml does not respect OCaml memory model either, think about float. But I think Js_of_ocaml is really great, BuckleScript and Js_of_ocaml have different use cases.