import React from 'react'; import ReactDom from 'react-dom'; function Greeting(){ return( <div> <h4> this is john and this is my first componenet; </h4> </div> ); } ReactDom.render(<Greeting />, document.getElementById('root'));
Create element by React.createElement.
import React from 'react'; import ReactDom from 'react-dom'; const Great = () => { return React.createElement('h1',{}, 'Hello this element create by create elements'); } ReactDom.render(<Great />, document.getElementById('root'));