/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 vote148 views1 answer
React native rebuild
Javascript React
15 votes190 views8 answers
React bootstrap
Javascript React
0 vote192 views3 answers
React animation
Javascript React
0 vote179 views1 answer
How to bound a state variable to a field react final form
Javascript React
0 vote189 views1 answer
@types react-router-dom
Javascript React
0 vote205 views3 answers
React native clear cach
Javascript React
0 vote194 views1 answer
How to take out text from array of strings in react
Javascript React
1 vote193 views1 answer
Node js and react js difference
Javascript React
2 votes193 views1 answer
React native socket io
Javascript React
0 vote193 views1 answer
React native cors origin
Javascript React