webpack.config.js

var path = require("path");
var HtmlWebpackPlugin = require("html-webpack-plugin");

module.exports = {
  entry: "./src/index.tsx",
  output: {
    filename: "bundle.js",
    path: __dirname + "/dist"
  },
  // webpack-dev-server configuration
  devServer: {
    contentBase: path.join(__dirname, "dist"),
    compress: true,
    port: 9000
  },

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

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

  module: {
    rules: [
      // All files with a '.ts' or '.tsx' extension will be handled by 'awesome-typescript-loader'.
      { test: /\.tsx?$/, loader: "awesome-typescript-loader" },

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

  plugins: [
    new HtmlWebpackPlugin({
      hash: true,
      title: "My Awesome application",
      myPageHeader: "Hello World",
      template: "./src/index.html",
      filename: "./index.html" //relative to root of the application
    })
  ]

  // 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.
};