useDeferredValue

March 19, 2025

useDeferredValue is a React Hook that helps improve UI responsiveness by deferring the update of a value until after higher-priority updates are completed.

import { useState, useDeferredValue } from 'react';

function SearchPage() {
  const [query, setQuery] = useState('');
  const deferredQuery = useDeferredValue(query);
  // ...
}

How It Works

• If value updates frequently (e.g., from user input), useDeferredValue returns a slightly delayed version of value, allowing React to prioritize more urgent updates first.
• It’s useful when rendering a computationally expensive UI based on an updating value.

Ref

https://react.dev/reference/react/useDeferredValue