React and Hooks
Authored by Farabi Chowdhury
Computers
Professional Development
Used 134+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
In which version of React did Hooks add?
15.6
16
16.8
18.1
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
What are Hooks?
Class components
Function components
Javascript functions
Lifecycle methods
3.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which is not an in-build hook?
useEffect
useFetch
useState
useRef
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
In which phase of lifecycles do the states initialise?
Updating
Mounting
Unmounting
Both 1 and 2
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which won't cause re-render in the component?
Changes in state
Changes in props
Changes in .current of useRef
Changes in dependency array of useEffect
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of the following is(are) correct methods to create reactJS component
class MyComponent extends React.Component { render() { return ( <div>Demo</div> ) } }
const MyComponent = () => { return ( <div>Demo</div> ) }
function MyComponent = () => { return ( <div>Demo</div> ) }
Only a
a, b and c
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
We can integrate reactJS in any of the existing web app
true
false
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