webpack.config.js

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { CleanWebpackPlugin } = require('clean-webpack-plugin');

module.exports = {
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[hash].main.js'
  },

  module: {
    rules: [
      {
        test: /\.js$/,
        include: [
          path.resolve(__dirname, 'src')
        ],
        loader: 'babel-loader'
      },
      {
        test: /\.css$/,
        include: [
          path.resolve(__dirname, 'src')
        ],
        use: [
          { loader: 'style-loader' },
          { loader: 'css-loader' }
        ]
      },
      {
        test: /\.jpg$/,
        loader: 'file-loader'
      }
    ]
  },

  plugins: [
    new CleanWebpackPlugin(),
    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, 'src/index.html')
    })
  ]
}