webpack.config.js

const path = require("path");
const HtmlWebpackPlugin = require("html-webpack-plugin");
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const { CleanWebpackPlugin } = require('clean-webpack-plugin');

module.exports = {
  entry: "./src/entry.tsx",
  target: "web",
  mode: "production",
  output: {
    path: path.resolve(__dirname, "public"),
    filename: '[name].[contentHash].bundle.js'
  },
  resolve: {
    extensions: [".js", ".jsx", ".json", ".ts", ".tsx"],
  },
  module: {
    rules: [
      {
        test: /\.(ts|tsx)$/,
        loader: "awesome-typescript-loader",
      },
      {
        enforce: "pre",
        test: /\.js$/,
        loader: "source-map-loader",
      },
      {
        test: /\.css$/,
        loader: "css-loader",
      },
      {
        test: /\.s[ac]ss$/i,
        use: [
          'style-loader',
          'css-loader',
          'sass-loader',
        ],
      },
    ],
  },
  optimization: {
      minimizer: [
        new UglifyJsPlugin({
          cache: true,
        }),
      ],
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, "index.html"),
    }),
    new MiniCssExtractPlugin(),
  ],
};