webpack.config.js

const path = require('path')
const HTMLWebpackPlugin = require('html-webpack-plugin')

module.exports = {
  mode: 'development',
  entry: {
    main: path.resolve(__dirname, 'app/index.js'),
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: '[name].[contenthash].js',
    clean: true,
  },
  devServer: {
    static: path.resolve(__dirname, 'dist'),
    port: 3000,
    hot: true,
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        loader: 'babel-loader',
      },
    ],
    strictExportPresence: false,
  },
  plugins: [
    new HTMLWebpackPlugin({
      template: path.resolve(__dirname, 'public/index.html'),
    }),
  ],
}