React.js

 // index.js.

import React from "react";

import ReactDom from "react-dom";

ReactDOM.render(<h1>Hello World</h1>, document.getElementById("Root"));

Fragment For React (For Div Close)

// index.js.

import React from "react";

import ReactDom from "react-dom";

ReactDOM.render(

<React.Fragment>

<h1>Hello World</h1>
<p>Lore texxt is the dummy text for this website</p>
<span>Change Method For React<span>
</React.Fragment>,
document.getElementById("Root"));

Use Can Use: <></>