The script build_wasm.sh compiles go-jsonnet project to WASM and stores the result in the folder ./dist.
For old versions of node you need to edit the file ./dist/wasm_exec.js. After the line use strict add line globalThis.crypto ??= require('crypto');. Maybe more changes are needed: golang/go#53128.
The module ./libjsonnet defines two function:
jsonnet_evaluate_snippet: Wrapper for the corresponding jsonnet library functionevaluate: Simplified interface. Only code and its external variables
For sample usage in Nodejs, see ../in-action/nodejs-cli/.