How to use jquery (append) and jsx (react)?

Question

JavaScript

There is this code:

import Chat from './Chat';
import $ from "jquery";

.......

function1{
      var div = '<div id="div1">' +
                        '</div>' +

}

Answer 1

const element = (
    <div>
      <h1>Hello, world!</h1>
      <h2>It is {new Date().toLocaleTimeString()}.</h2>
    </div>
  );
  ReactDOM.render(element, document.getElementById('root'));

Example taken from here