Answer & Solution
Answer: Option A
Solution:
typeof true returns 'boolean'.
Q
What does typeof true evaluate to in JavaScript?
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What does typeof Math evaluate to in JavaScript?
A). math
B). object
C). number
D). undefined
What will be the output of typeof null in JavaScript?
A). object
B). null
C). undefined
D). string
What does the typeof operator return for an undefined variable?
A). undefined
B). number
C). boolean
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How does the typeof operator handle arrays in JavaScript?
A). array
B). object
C). undefined
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What does typeof window.evaluate evaluate to in JavaScript?
A). function
B). object
C). string
D). undefined
What does typeof new Date() evaluate to in JavaScript?
A). date
B). object
C). string
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What does Number('123') return in JavaScript?
A). 123
B). '123'
C). NaN
D). 1
What is the result of typeof NaN in JavaScript?
A). number
B). NaN
C). undefined
D). string
What will be the output of [] instanceof Array in JavaScript?
A). 1
B). 0
C). null
D). undefined
How does JavaScript evaluate Boolean(0)?
A). 1
B). 0
C). null
D). undefined