What is React Fiber?
- A new JavaScript engine developed by Facebook
- A new component lifecycle method in React
- A new programming language developed by Facebook
- A new rendering engine for React
React Fiber is a new rendering engine for React that was introduced in React 16. It is designed to improve performance and enable more flexibility in scheduling updates. With React Fiber, React can break up large updates into smaller chunks, prioritize updates, and pause and resume updates as needed.
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