webpack.config.js

const path = require('path');
const ForkTsCheckerWebpackPlugin = require('fork-ts-checker-webpack-plugin');
const HappyPack = require('happypack');

module.exports = {
  entry: './src/index.ts',
  output: {
    filename: 'bundle.js',
    path: path.resolve(__dirname, 'public'),
  },
  devtool: 'inline-source-map',
  mode: 'development',
  resolve: {
    extensions: ['.ts', '.tsx', '.js'],
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        exclude: /node_modules/,
        loader: 'happypack/loader?id=ts',
      },
      {
        test: /\.css$/,
        use: [{ loader: 'style-loader' }, { loader: 'css-loader' }],
      },
      {
        test: /\.ts$/,
        enforce: 'pre',
        use: [
          {
            loader: 'tslint-loader',
            options: {
              /* Loader options go here */
            },
          },
        ],
      },
    ],
  },
  devServer: {
    contentBase: path.join(__dirname, 'public'),
    compress: true,
    port: 8080,
    inline: true,
  },
  plugins: [
    new HappyPack({
      id: 'ts',
      threads: 2,
      loaders: [
        {
          path: 'ts-loader',
          query: { happyPackMode: true },
        },
      ],
    }),
    new ForkTsCheckerWebpackPlugin(),
  ],
};