webpack.config.js

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

module.exports = {
  entry: './src/index.js',
  output: {
    filename: '[name].[contenthash].js',
    path: path.resolve(__dirname, 'dist'),
  },
  devtool: 'cheap-module-source-map',
  module: {
    rules: [
      { test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader' },
      {
        test: /\.css$/i,
        use: ['style-loader', 'css-loader'],
      },
    ]
  },
  plugins: [
    new HtmlWebpackPlugin({
      template: 'index.html'
    })
  ]
}