Engrain by ByteRush

RCT.02 3 concepts · 3 ready

Reconciliation and fiber

Explain how React decides what to update and how fiber enables interruptible rendering.

  1. RCT.02.01Reconciliation and keysCoreMid-level11 min
  2. RCT.02.02Fiber architectureCoreSenior12 min
  3. RCT.02.03Concurrent rendering: transitions and deferred valuesCoreSenior12 min

Interview questions in this module

  1. How does React's reconciliation algorithm work?
  2. Why are keys important? What goes wrong with array indexes as keys?
  3. What is React Fiber and what problem did it solve?
  4. What are transitions in React? When would you use useTransition?
  5. What is tearing and how does useSyncExternalStore prevent it?
  6. How would you force a component to reset its state?