React Advanced

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Question 1
What is the main goal of React’s concurrent rendering?
A
To execute multiple components in parallel using threads
B
To improve performance by batching state updates and rendering work
C
To replace the event loop with a new scheduling mechanism
D
To enable server-side rendering in React
Question 2
What does useTransition do in concurrent rendering?
A
It allows you to delay state updates to improve UI responsiveness
B
It forces React to render synchronously
C
It prevents component re-renders completely
D
It replaces useState for managing state
Question 3
In which scenario would startTransition be useful?
A
When fetching API data and you want to show a loading state immediately
B
When updating state inside an event handler but want to keep UI responsive
C
When preventing a component from rendering until data is available
D
When handling animations in React
Question 4
What happens when you mark a state update as "non-urgent" using startTransition?
A
React defers the update and prioritizes more urgent renders first
B
The update is applied immediately with higher priority
C
The state update is ignored until all other renders are complete
D
React blocks the UI until the update is finished

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