⚡ React Fiber Reconciler — Discover How It Works

Tom Smykowski
2 min readSep 21, 2024

Ever wondered how React manages to keep your app’s UI so snappy? Max Shahdoost’s latest article dives into the evolution of React’s Fiber reconciler, revealing how it improved the reconciliation process from pre-React 16 to today.

Max Shahdoost wrote an interesting article explaining how React fiber reconciler worked before React 16 and today.

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If you don’t know reconciliation is a process where React checks virtual DOM and real DOM, and synchronizes the latter one with the previous one. Because React uses virtual DOM, the proper working of the process is crucial for the performance.

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The article is well illustrated and worth reading. Read the article

Max Shahdoost’s article offers a deep dive into the React Fiber reconciler, showcasing its significant performance enhancements from the earlier versions to now. Understanding these advancements can provide valuable insights into optimizing your React applications.

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Tom Smykowski
Tom Smykowski

Written by Tom Smykowski

Software Engineer & Tech Editor. Top 2% on StackOverflow, 3mil views on Quora. Won Shattered Pixel Dungeon.

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