webpack.config.js

const path = require("path")
const HtmlWebpackPlugin = require("html-webpack-plugin")
const htmlWebpackPlugin = new HtmlWebpackPlugin({
  template: path.join(__dirname, "examples/src/index.html"),
  filename: "./index.html"
})

module.exports = {
  entry: path.join(__dirname, "examples/src/index.js"),
  output: {
    path: path.join(__dirname, "examples/dist"),
    filename: "bundle.js"
  },

  // Enable sourcemaps for debugging webpack's output.
  devtool: "source-map",

  resolve: {
    // Add '.ts' and '.tsx' as resolvable extensions.
    extensions: [".ts", ".tsx", ".js", ".jsx", ".json"]
  },

  module: {
    rules: [
      // All files with a '.ts' or '.tsx' extension will be handled by 'awesome-typescript-loader'.
      {
        test: /\.tsx?$/,
        loader: "awesome-typescript-loader"
      },
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: ["babel-loader"]
      },

      // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
      { enforce: "pre", test: /\.js$/, loader: "source-map-loader" }
    ]
  },

  // When importing a module whose path matches one of the following, just
  // assume a corresponding global variable exists and use that instead.
  // This is important because it allows us to avoid bundling all of our
  // dependencies, which allows browsers to cache those libraries between builds.
  // externals: {
  //   react: "React",
  //   "react-dom": "ReactDOM"
  // },
  plugins: [htmlWebpackPlugin],
  devServer: {
    port: 3000
  }
}