webpack.config.js

import path from 'path'
import HtmlWebpackPlugin from 'html-webpack-plugin'

module.exports = {
  entry: path.join(__dirname, 'src', 'index.js'),
  output: {
    path: path.join(__dirname, 'dist'),
    filename: 'bundle.[contenthash].js',
    publicPath: '/'
  },
  mode: process.env.NODE_ENV || 'development',
  resolve: {
    modules: [path.resolve(__dirname, 'src'), 'node_modules']
  },
  devServer: {
    historyApiFallback: true,
    contentBase: path.join(__dirname, 'src')
  },
  module: {
    rules: [
      {
        test: /\.(js|jsx)$/,
        exclude: /node_modules/,
        use: ['babel-loader']
      },
      {
        test: /\.(css|scss)$/,
        use: [
          'style-loader',
          'css-loader',
          'sass-loader'
        ]
      },
      {
        test: /\.(jpg|jpeg|png|gif|mp3|svg)$/,
        loaders: ['file-loader']
      }
    ]
  },
  optimization: {
    splitChunks: {
      chunks: 'all'
    }
  },
  plugins: [
    new HtmlWebpackPlugin({
      favicon: path.join(__dirname, 'src', 'assets', 'logo.png'),
      template: path.join(__dirname, 'src', 'index.html')
    })
  ]
}