Answers for "react js promise cleanup useeffect"

useeffect with cleanup

useEffect(() => {
	//your code goes here
    return () => {
      //your cleanup code codes here
    };
  },[]);

useeffect cleanup in reactjs

import React, { useEffect } from 'react';

function FriendStatus(props) {

  useEffect(() => {
    // do someting when mount component
    
    return function cleanup() {
      // do something when unmount component
    };
  });
}

useeffect cleanup in reactjs

useEffect(() => {
    // do someting when mount component
    
    return function cleanup() {
      // do something when unmount component
});