esbuild.js

const esbuild = require('esbuild');
// include this if you need some node support:
// npm i @esbuild-plugins/node-modules-polyfill --save-dev
// const { NodeModulesPolyfillPlugin } = require('@esbuild-plugins/node-modules-polyfill')

esbuild
    .build({
        // supports other types like js or ts
        entryPoints: ['src/index.js'],
        outdir: 'dist',
        bundle: true,
        sourcemap: true,
        //plugins: [NodeModulesPolyfillPlugin()], // include this if you need some node support 
        minify: false, // might want to use true for production build
        format: 'cjs', // needs to be CJS for now
        target: ['es2020'] // don't go over es2020 because quickjs doesn't support it
    })