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Facebook’s React library utilizes a reconciliation algorithm to improve performance when updating the DOM.
Explain the React reconciliation process. What optimizations exist to speed up virtual DOM diffing?
React’s reconciliation algorithm minimizes DOM updates by creating a virtual DOM. When state changes, React diffs the new virtual DOM with the previous one and calculates the most efficient way to update the real DOM. It relies on keys in lists to optimize matching between old and new elements. Optimizations like batching updates, skipping subtrees, and Fiber architecture allow React to prioritize updates for better responsiveness and reduce blocking of the main thread.
React’s reconciliation algorithm minimizes DOM updates by creating a virtual DOM. When state changes, React diffs the new virtual DOM with the previous one and calculates the most efficient way to update the real DOM. It relies on keys in lists to optimize matching between old and new elements. Optimizations like batching updates, skipping subtrees, and Fiber architecture allow React to prioritize updates for better responsiveness and reduce blocking of the main thread.
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