How to set the time to close the page in react

How to set the page closing time in react: 1. Set the time value of 5 seconds in the constructor; 2. Add a timer in componentDidMount; 3. Add judgment in render, the code is like "{this.state.dlgTipTxt}}/>".

The operating environment of this tutorial: Windows 10 system, react18.0.0 version, Dell G3 computer.

How to set the time to close the page in react?

React to implement a simple countdown to close the page

First set the time value of 5 seconds in the constructor

constructor (props) {
   super(props)
   this.state={
     seconds: 5,
     dlgTipTxt: '5s后关闭页面'
   };
 }

Add a timer to componentDidMount

componentDidMount () {
  let timer = setInterval(() => {
    this.setState((preState) =>({
      seconds: preState.seconds - 1,
      dlgTipTxt: `${preState.seconds - 1}s后自动关闭`,
    }),() => {
      if(this.state.seconds == 0){
        clearInterval(timer);
        window.close()
      }
    });
  }, 1000)
}

Add judgment in render

render() {
return (
<Result
status="403"
title="403"
subTitle="抱歉你没有权限访问页面"
extra={
<Button>
{this.state.dlgTipTxt}
</Button>
}
/>
)
}

Recommended learning: "react video tutorial"

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