webpack.config.ts

import path from "path";
import webpack from "webpack";
import ForkTsCheckerWebpackPlugin from 'fork-ts-checker-webpack-plugin';

const HtmlWebpackPlugin = require('html-webpack-plugin');

const config: webpack.Configuration = {
  entry: {
    'app': [
      path.resolve(__dirname, 'src/index.tsx')
    ]
  },

  mode: 'development',

  devtool: 'source-map',

  module: {
    rules: [
      {
        test: /\.(ts|js)x?$/,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
          options: {
            presets: [
              "@babel/preset-env",
              "@babel/preset-react",
              "@babel/preset-typescript",
            ],
          },
        },
      },
      {
        test: /\.s?css$/,
        use: [
          'style-loader',
          'css-loader',
          'sass-loader'
        ]
      },
    ],
  },
  resolve: {
    extensions: [".tsx", ".ts", ".js"],
  },
  output: {
    path: path.resolve(__dirname, "build"),
    filename: "bundle.js",
    publicPath: '/'
  },
  devServer: {
    contentBase: path.join(__dirname, "build"),
    historyApiFallback: true,
    compress: true,
    port: 4000,
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, 'src/template.html'),
      inject: 'body'
    }),
    new ForkTsCheckerWebpackPlugin({
      async: false,
      eslint: {
        files: './src/**/*.{ts,tsx,js,jsx}',
      },
    })
  ],
};

export default config;