Glossary term
What is Fiber (React Fiber)?
Fiber stands for React Fiber.
React's inside tree of work units. It lets React pause rendering, and it lets state belong to a place in the tree.
Learn it properly · Senior Frontend DepthLesson 0: React Rendering Model: Render, Commit, Reconciliation and KeysWhat “render” really means, how React finds what changed between renders, why keys matter and how batching works.