The useTransition Hook
Explore how to use the React useTransition hook to keep user interfaces responsive by separating urgent tasks like input updates from slower rendering processes. Understand how to implement startTransition and use isPending for visual feedback, enabling smoother interactions even during heavy data filtering or UI updates.
Modern web apps often handle large datasets or complex UI updates. Imagine a search feature that filters thousands of items as the user types, or a dashboard that refreshes multiple charts at once. These operations can make typing or clicking feel delayed because React processes all updates immediately and synchronously.
To address this, React introduces concurrent rendering capabilities that enable React to prioritize tasks intelligently. One of the most practical tools for this is the useTransition Hook, which allows us to mark certain updates as non-urgent. React then delays these updates slightly so that urgent actions, such as responding to user input, remain smooth and snappy.
Understanding useTransition
The useTransition Hook provides a way to separate urgent updates (like text input) from non-urgent ones ...