/Javascript/React/Onclick start and stop the count react

Onclick start and stop the count react

class Controls extends React.Component{
    state={
        myInterval : null,
        time: 25*60*1000
    }
    countDown = () => {
        this.setState({
            time : this.state.time-1000,
        })
    }
    startTimer = () => {
        this.setState({myInterval : setInterval(this.countDown,1000)})
    }
    stopTimer = () => {
        clearInterval(this.state.myInterval)
    }
    render(){
        return(
            <div>
                <button onClick={this.startTimer}>Start</button>
                <button onClick={this.stopTimer}>Stop</button>
                {this.state.time}
            </div>
        )
    }
}


class App extends React.Component{
    render(){
        return <Controls/>
    }
}





ReactDOM.render(
  <App />,
  document.getElementById("react")
);

Source: stackoverflow.com

Similar codes

0 vote206 views1 answer
How to add autoserial number in react js
Javascript React
21 votes195 views6 answers
React native vector icon
Javascript React
4 votes235 views2 answers
Linking in react native
Javascript React
3 votes184 views1 answer
White screen issue in react native splashscreen
Javascript React
0 vote197 views1 answer
Dispatch event not working react native redux
Javascript React
0 vote202 views1 answer
How to calc() height in react native for styling
Javascript React
4 votes211 views2 answers
'Switch' is not exported from 'react-router-dom'.
Javascript React
0 vote201 views1 answer
Horizontal scrollview in react js
Javascript React
3 votes199 views1 answer
React create array
Javascript React
108 votes191 views2 answers
Make react project
Javascript React