/TypeScript/Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function.

Warning: Can't perform a React state update on an unmounted component. This is a no-op, but it indicates a memory leak in your application. To fix, cancel all subscriptions and asynchronous tasks in a useEffect cleanup function.

You can declare let isMounted = true inside useEffect,
which will be changed in the cleanup callback, as soon as the component is unmounted.
Before state updates, you now check this variable conditionally:

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
}, []);

React warning can't perform a react state update on an unmounted component

componentWillUnmount() {
    // fix Warning: Can't perform a React state update on an unmounted component
    this.setState = (state,callback)=>{
        return;
    };
}

Source: stackoverflow.com

Similar codes

0 vote289 views1 answer
Must_not exists elastic search
TypeScript
4 votes270 views2 answers
Python loop object
TypeScript
0 vote280 views1 answer
Laravel unique working with softdeletes
TypeScript
9 votes297 views3 answers
React typescript onclick type
TypeScript
0 vote279 views1 answer
Function to find the unique elements from two arrays
TypeScript
-1 vote313 views1 answer
What are the three ways for a developer to execute tests in an org
TypeScript
0 vote282 views1 answer
Convert list to list of lists on every n elements python
TypeScript
0 vote309 views1 answer
Angular redirect on submit
TypeScript
0 vote312 views1 answer
Download blob typescript
TypeScript
0 vote286 views1 answer
Ips in range typescript
TypeScript