
React Hooks Quiz III
Quiz
•
Information Technology (IT)
•
University
•
Practice Problem
•
Hard
Aymane Benhima
FREE Resource
Enhance your content in a minute
8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which Hook is used to store and update state in functional components?
useState
useEffect
useRef
useContext
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the correct way to initialize state using useState?
const [count, setCount] = useState(0);
const count = useState(0);
const [count] = useState(0);
const [count, updateCount] = useState();
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What will happen if useEffect is missing the dependency array?
The effect will run after every render.
The effect will never run.
The effect will run only once.
React will throw an error.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a common mistake when using useEffect with dependencies?
Not including all necessary dependencies in the array.
Using useEffect inside event handlers.
Using useState inside useEffect.
Calling setState directly inside the render function.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you clean up a side effect in useEffect?
Return a cleanup function inside useEffect.
Call useEffect twice.
Use useMemo instead of useEffect.
Set useEffect dependencies to null.
6.
OPEN ENDED QUESTION
3 mins • 1 pt
What is wrong with the following useState usage?
Evaluate responses using AI:
OFF
7.
OPEN ENDED QUESTION
3 mins • 1 pt
What is wrong with this useEffect implementation?
Evaluate responses using AI:
OFF
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