Guide to compile dhall to JS backend, wasm backend and GHCJS

[flip111]

Could anyone provide some hints on how to get dhall compiled into a javascript library? And how would one get an API specification for this library? AFAIK there are three possibly targets, the older GHCJS, the new javascript backend 1 and a WASM backend. I would like to try all three

[Gabriella439]

The Dhall JavaScript code that powers https://dhall-lang.org is built using the older GHCJS and that's using Nixpkgs's support for GHCJS. However, I haven't tried either the WASM backend or the new JavaScript backend.

Also, even the older GHCJS build is deprecated (it's currently disabled in master), although I've been working on re-enabling it. The dhall-lang repository is pinned to an older version of this repository for building the JavaScript code.