give up & uninstall`function FormattedDate(props) {
return
It is {props.date.toLocaleTimeString()}.
;
}
class Clock extends React.Component {
constructor(props) {
super(props);
this.state = {date: new Date()};
}
componentDidMount() {
this.timerID = setInterval(
() => this.tick(),
1000
);
}
componentWillUnmount() {
clearInterval(this.timerID);
}
tick() {
this.setState({
date: new Date()
});
}
render() {
return (
Hello, world!
);
}
}
function App() {
return (
);
}
ReactDOM.render(, document.getElementById('root'));
`