webpack.config.js

var webpack = require("webpack")
var path = require("path")
var ForkTsCheckerWebpackPlugin = require("fork-ts-checker-webpack-plugin")

module.exports = {
  mode: "development",
  entry: ["./src/index.tsx"],
  output: {
    filename: "bundle.js",
    publicPath: "/dist/",
    path: path.resolve(__dirname, "dist")
  },

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

  devServer: {
    compress: true,
    disableHostCheck: true,
    historyApiFallback: true,
    host: "0.0.0.0",
    hot: true,
    inline: true
  },

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

  plugins: [
    new ForkTsCheckerWebpackPlugin(),
    new webpack.HotModuleReplacementPlugin()
  ],

  module: {
    rules: [
      // All files with a '.ts' or '.tsx' extension will be handled by 'awesome-typescript-loader'.
      {
        test: /\.tsx?$/,
        use: [
          {
            loader: "ts-loader",
            options: {
              transpileOnly: true,
              experimentalWatchApi: true
            }
          }
        ]
      },
      // All output '.js' files will have any sourcemaps re-processed by 'source-map-loader'.
      { test: /\.js$/, enforce: "pre", use: "source-map-loader" }
    ]
  }
}