webpack.config.js

const path = require('path');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');

module.exports = {
  entry: path.resolve(__dirname, './src/index.js'),
  module: {
    rules: [
      {
        test: /\.(s(a|c)ss)$/,
        use: [
          MiniCssExtractPlugin.loader,
          'css-loader',
          'sass-loader',
        ],
      },
      {
        test: /\.html$/,
        use: 'html-loader',
      },
    ],
  },
  plugins: [
    new MiniCssExtractPlugin({
      filename: 'styles.css',
    }),
    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, './src/index.html'),
      filename: 'index.html',
    }),
  ],
  output: {
    path: path.resolve(__dirname, './public'),
    filename: 'bundle.js',
  },
  devServer: {
    static: {
      directory: path.resolve(__dirname, './public'),
    },
    hot: true,
    watchFiles: ['src/**/*'],
    open: true,
  },
};