text: import React from 'react';
  import { render } from 'react-dom';
  import Calculator from './components/Calculator';
  
  // Since we are using HtmlWebpackPlugin WITHOUT a template, we should create our own root node in the body element before rendering into it
  let root = document.createElement('div');
  root.id = "root";
  document.body.appendChild( root );
  
  render( <Calculator />, document.getElementById('root') );
  