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		lpw25 on Nov 18, 2014 \| parent \| context \| favorite \| on: Facebook Launches Flow, Static Type Checker for Ja... OCaml has excellent compile-to-JavaScript support. Facebook use this to compile their Hack type-checker for an in-browser IDE. I imagine they do something similar for Flow.

avsm on Nov 19, 2014 [–]

They do indeed use js_of_ocaml in the Flow test suite to compile the full Flow parser to JavaScript and then test that.

See the related discussion on packaging it in the OPAM pull request: https://github.com/ocaml/opam-repository/pull/3083

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