Q25: What is React Fiber and what problem did it solve?
React Fiber is the re-implemented core algorithm introduced in React 16. It enables incremental rendering by splitting rendering work into chunk units (fibers) that can be paused, prioritized, aborted, or resumed.
Key Takeaways
- Fiber allows pausing and prioritizing rendering work to avoid blocking main browser threads.
- Enables smooth UI responsiveness and concurrent rendering features.
Knowledge Check
What primary feature did React Fiber introduce over the old stack reconciler?