rollup.config.mjs

import babel from "@rollup/plugin-babel";
import nodeResolve from "@rollup/plugin-node-resolve";
// import { terser } from "rollup-plugin-terser";

const extensions = [".js", ".jsx", ".ts", ".tsx"];

export default {
  input: "src/index.ts",
  plugins: [
    nodeResolve({
      extensions: [".ts"],
    }),
    babel({
      extensions,
      exclude: "node_modules/**",
    }),
    // Terser issue: https://github.com/terser/terser/issues/828
    // terser({
    //   compress: {
    //     inline: 3,
    //     // passes: 3,
    //   },
    //   mangle: false,
    //   toplevel: true,
    //   module: true,
    //   output: {
    //     beautify: true,
    //   },
    //   keep_classnames: true,
    // }),
  ],
  output: [
    {
      name: "objectbuffer",
      file: "dist/objectbuffer.umd.js",
      sourcemap: true,
      format: "umd",
    },
    {
      file: "dist/objectbuffer.cjs.js",
      sourcemap: true,
      format: "cjs",
    },
    {
      file: "dist/objectbuffer.esm.js",
      sourcemap: true,
      format: "esm",
    },
  ],
};