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React Native interview questions
React Native interview questions
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Total Questions: 5
1. How do you write an inline style specifying the font-size:12px and color:red; in JSX
A. style={{font-size:12,color:'red'}}
B. style={{fontSize:'12px',color:'red'}}
C. style={fontSize:'12px',color:'red'}
D. style={{font-size:abpx,color:'red'}}
Show Correct Answer
Correct Answer is :
style={{fontSize:'12px',color:'red'}}
2. What's used to pass data to a component from outside?
A. setState
B. render with arguments
C. PropTypes
D. props
Show Correct Answer
Correct Answer is :
props
3. How do you access a function fetch() from a h1 element in JSX?
A.
{fetch()}
B.
${fetch()}
C.
{fetch}
D.
${fetch}
Show Correct Answer
Correct Answer is :
{fetch}
4. Which method in a React Component should you override to stop the component from updating?
A. willComponentUpdate
B. shouldComponentUpdate
C. componentDidUpdate
D. componentDidMount
Show Correct Answer
Correct Answer is :
shouldComponentUpdate
5. What happens when you call setState() inside render() method?
A. Repetitive output appears on the screen
B. Stack overflow error
C. Duplicate key error
D. Nothing happens. Life goes on!
Show Correct Answer
Correct Answer is :
Stack overflow error
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