tutorialspoint.com react js
import React from 'react';
class App extends React.Component {
constructor(props) {
super(props);
this.state = {
header: "Header from state...",
content: "Content from state..."
}
}
render() {
return (
<div>
<h1>{this.state.header}</h1>
<h2>{this.state.content}</h2>
</div>
);
}
}
export default App;