webpack.config.js

var path = require("path");
var nodeExternals = require("webpack-node-externals");

let common = {
    entry: "./src/index.ts",
    devtool: "source-map",
    module: {
        rules: [
            {
                test: /\.tsx?$/,
                use: ["babel-loader", "ts-loader"],
                exclude: /node_modules/,
            },
        ],
    },
    plugins: [],
    resolve: {
        extensions: [".ts", ".tsx", ".js"],
    },
};

module.exports = [
    Object.assign({}, common, {
        target: "web",
        entry: ["babel-polyfill", "./src/index.ts"],
        output: {
            path: path.resolve(/* __dirname */ "./", "build/bundled"),
            filename: "browser.js",
            libraryTarget: "var",
            library: "RenVM", // This is the var name in browser
            libraryExport: "default",
        },
        resolve: {
            ...common.resolve,
            fallback: {
                fs: "empty",
                child_process: "empty",
            },
        },
    }),
    Object.assign({}, common, {
        target: "node",
        output: {
            path: path.resolve(/* __dirname */ "./", "build/bundled"),
            filename: "index.js",
            libraryTarget: "commonjs2",
            // libraryExport: 'default'
        },
        externals: [nodeExternals()],
    }),
];