So as i understand the difference between the two is that useCallback is used if a function or object or array is returned while useMemo when a primitive is returned. But i was looking up debouncin...

I am creating a component that will hold a dynamic list of elements and for styling reasons, I need to keep the title for each section in a sticky nav menu. As the user scrolls up and down the list...

Outside of the counter example seen in many YouTube tutorial videos, what are practical/real-world use cases for useMemo and useCallback? Also, I've only seen an input focus example for the useRef ...

I am using useMemo hook to render map items.I added items parameter to useMemo hook, based on items change it will render. But changing loading state and items change, Item custom component renderi...

How can I memoize my rawTranscript variable so it doesn't trigger the useEffect below which subsequently triggers the expensive transcriptParser function? I've been trying a lot of different approa...

Scenario is relatively simple: we have a long-running, on-demand calculation that occurs on a remote server. We want to memoize the result. Even though we are fetching asychronously from a remote r...

When should we worry about functional components redefining variables and functions?? I think this first case is clearly unnecessary, functions is not expensive to create(and the react dev tools pr...

I was trying to use react hooks inside conditional statement unfortunatly react gives you error for almost all the hooks and its intented as per hooks philosophy. and then I tried useMemo hook insi...

If we see in the doc example: https://reactnavigation.org/docs/auth-flow/ : function SignInScreen() { const [username, setUsername] = React.useState(''); const [password, setPassword] = React.us...

Is there a way to use this hook or some its analogue of the React API in the case of a class component? I'm wondering, should I use some third party memo helpers in the case of a class component (e...