Re:WebML: A Standard ML Compiler for the Web
by eatonphil on Sunday March 08, 2020 @05:26PM
(#22520726)
SOSML [0] came out recently, written in TypeScript and sporting an online interpreter. Then there's this prominent SML-er's JavaScript backend for Moscow ML [1]. And Andreas Rossberg's HaMLet [2] also has a JavaScript backend.
[0] https://github.com/SOSML/SOSML
Somewhat unexpectedly, there is in fact already a very good SML-to-browser solution, namely the unfortunately named SMLtoJs: https://github.com/melsman/mlkit/blob/master/README_SMLTOJS....
It's from 2011 and so predates most other Javascript-targeting languages. It's unfortunate it never got any traction.