time second updating without rendering
componentDidMount() {
this.intervalID = setInterval(
() => this.tick(),
1000
);
}
componentWillUnmount() {
clearInterval(this.intervalID);
}time second updating without rendering
componentDidMount() {
this.intervalID = setInterval(
() => this.tick(),
1000
);
}
componentWillUnmount() {
clearInterval(this.intervalID);
}time second updating without rendering
class Clock extends React.Component {
constructor(props) {
super(props);
this.state = {
time: new Date().toLocaleString()
};
}
componentDidMount() {
this.intervalID = setInterval(
() => this.tick(),
1000
);
}
componentWillUnmount() {
clearInterval(this.intervalID);
}
tick() {
this.setState({
time: new Date().toLocaleString()
});
}
render() {
return (
<p className="App-clock">
The time is {this.state.time}.
</p>
);
}
}Copyright © 2021 Codeinu
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