webpack config

https://github.com/Microsoft/TypeScript-Babel-Starter

const path = require("path");

module.exports = {
  entry: "./src/index.js",
  output: {
    path: __dirname,
    filename: "app.js"
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
          options: {
            presets: ["@babel/preset-env"],
            plugins: [
              [
                "@babel/plugin-transform-runtime",
                {
                  regenerator: true
                }
              ]
            ]
          }
        }
      }
    ]
  },
  target: "node",
  node: {
    __dirname: false,
    __filename: false
  },
  externals: {
    fs: "commonjs fs"
  },
  mode: "development"
};