bug: IonAert button get empty value from input about ionic-framework HOT 4 CLOSED

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i found that the setInterval make value empty,here is test repository
test-ion-alert

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Hello @TheSoils thanks for this issue. This is an implementation issue, not an issue with the ion-alert component.

Every 100ms, you are forcing a complete re-render of the view and the alert. This resets the value of all the form controls in the alert. This can best be seen if you render a radio button. The selected radio button will be immediately de-selected.

I would recommend separating the render responsibility for your countdown to a separate component:

import { useEffect, useState } from "react";

const CountDown = () => {
  const [time, setTime] = useState<Date>(new Date());

  useEffect(() => {
    const interval = setInterval(() => {
      setTime(new Date());
    }, 100);

    return () => {
      clearInterval(interval);
    };
  }, []);

  return time?.toTimeString();
};

export default CountDown;

and render that component in place of doing the setInterval at the page level component.

Thanks!

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Thanks for the issue! This issue is being locked to prevent comments that are not relevant to the original issue. If this is still an issue with the latest version of Ionic, please create a new issue and ensure the template is fully filled out.

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