React Fundamentals

The rendering model, state as a snapshot, keys and component identity, effects as synchronization, memoisation, and the client boundary.

Read

44 min

Practice MCQs

25

Interview QA

25

Edition

v3

Editorial status

Reviewed

Relevant for

Frontend Engineer

Scope: React 19, including automatic batching from React 18 and the Server Component model as implemented by React 19 and Next.js 16.