Bucklescript is the ocaml -> JS compiler created within Bloomberg. Reason is just JS syntax like sugar on top of Ocaml. The creator (of React as well) saw it a

Bucklescript is the ocaml -> JS compiler created within Bloomberg. Reason is just JS syntax like sugar on top of Ocaml. The creator (of React as well) saw it as a middle ground to bring in the giant JS ecosystem and population which makes some sense.