/Javascript/React/Remove the warning for setState on unmounted components in React

Remove the warning for setState on unmounted components in React

useEffect(() => {
  let isMounted = true;               // note mutable flag
  someAsyncOperation().then(data => {
    if (isMounted) setState(data);    // add conditional check
  })
  return () => { isMounted = false }; // cleanup toggles value, if unmounted
}, []);                               // adjust dependencies to your needs

Source: stackoverflow.com

Remove the warning for setState on unmounted components in React

function useAsync(asyncFn, onSuccess) {
  useEffect(() => {
    let isActive = true;
    asyncFn().then(data => {
      if (isActive) onSuccess(data);
    });
    return () => { isActive = false };
  }, [asyncFn, onSuccess]);
}

Source: stackoverflow.com

Similar codes

3 votes242 views3 answers
React change url params
Javascript React
2 votes238 views2 answers
Get value of Autocomplete react
Javascript React
1 vote248 views1 answer
React form reload page
Javascript React
0 vote258 views1 answer
How to cause a whole page reload react redux
Javascript React
0 vote234 views1 answer
React open a link to an outside siite
Javascript React
1 vote231 views1 answer
React list
Javascript React
-1 vote248 views1 answer
React_Weather_App
Javascript React
0 vote241 views2 answers
Mobile nav react npm
Javascript React
0 vote229 views1 answer
React select remove the loading indicator
Javascript React
0 vote235 views2 answers
On ddrop function react dropzone parameters
Javascript React