webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const ForkTsCheckerWebpackPlugin = require("fork-ts-checker-webpack-plugin");
const ESLintPlugin = require("eslint-webpack-plugin");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = {
  output: {
    path: path.resolve(__dirname, "build"),
    filename: "[name].[contenthash].js",
    publicPath: "",
  },
  entry: "./src/index.ts",
  module: {
    rules: [
      {
        test: /\.tsx?$/i,
        exclude: /node_modules/,
        use: {
          loader: "babel-loader",
          options: {
            presets: [
              "@babel/preset-env",
              "@babel/preset-react",
              "@babel/preset-typescript",
            ],
          },
        },
      },
      {
        test: /\.s[ac]ss$/i,
        use: ["style-loader", "css-loader", "sass-loader"],
      },
      {
        test: /\.(png|svg|jpg|jpeg|gif)$/i,
        loader: "file-loader",
      },
    ],
  },
  resolve: {
    extensions: [".tsx", ".ts", ".js"],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: "src/index.html",
    }),
    new ForkTsCheckerWebpackPlugin({
      async: false,
    }),
    new ESLintPlugin({
      extensions: ["js", "jsx", "ts", "tsx"],
    }),
    new CleanWebpackPlugin(),
    new MiniCssExtractPlugin({
      filename: "[name].[contenthash].css",
    }),
  ],
  devServer: {
    contentBase: path.join(__dirname, "build"),
    historyApiFallback: true,
    port: 4000,
    open: true,
    hot: true,
  },
};