webpack.config.js

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

module.exports = {
  mode: 'development',
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js',
    publicPath: '/'
  },
  devServer: {
    static: {
      directory: path.join(__dirname, 'src'),
    },
    port: 3000,
    hot: true, // Enables Hot Module Replacement (updating modules without full reload)
    historyApiFallback: true, // For single-page apps with client-side routing - sends index.html for any 404s
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env', '@babel/preset-react']
          }
        }
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      },
      {
        test: /\.(png|svg|jpg|jpeg|gif)$/i,
        type: 'asset/resource',
      }
    ]
  },
  resolve: {
    extensions: ['.js', '.jsx']
  },
  plugins: [
    new HtmlWebpackPlugin({ // Creates an instance of HtmlWebpackPlugin
      template: './src/index.html' // Uses './src/index.html' as a template for generating the final HTML file
    }) // Automatically injects the bundled JavaScript into this HTML file
  ]
};