How React Batching and Scheduling Work Behind the Scenes
Briefly

React employs batching to handle multiple state updates within a single render cycle, enhancing performance and user experience. With the advent of Concurrent Mode and Fiber, React can pause and resume rendering tasks based on their priority, enabling a more responsive interface. Before React 18, developers faced limitations in batching capabilities, but recent updates allow for more efficient management of urgent user inputs. This prioritization ensures that urgent updates are processed first, significantly improving UI smoothness and efficiency in real-world applications.
React improves performance by batching multiple updates into a single render pass, which reduces the number of renders and makes the UI more responsive.
With the introduction of Concurrent Mode and React Fiber, the library can pause and resume updates, scheduling tasks based on their urgency and priority.
Understanding how React prioritizes work allows developers to write more efficient applications, ensuring critical user interactions are prioritized over less significant updates.
Before React 18, batching was limited, but now it enables smoother user experiences by managing rendering tasks more effectively.
Read at Medium
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