Quiz
Advanced
10 questions
Concurrent React, Server Components, React 19, and deep architecture
01What does React guarantee when using startTransition?
02What is the difference between a React Server Component and a Client Component?
03What problem does useOptimistic solve in React 19?
04Why is passing a new object as a Context value on every render problematic?
05What is the React Compiler (formerly React Forget)?
06When does an Error Boundary NOT catch an error?
07What does Suspense do in combination with lazy()?
08What happens to a component's state when React unmounts and remounts it?
09What is the purpose of useId in React 18+?
10What are Actions in React 19?
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