Answer & Solution
Answer: Option A
Solution:
typeof NaN returns 'number'.
Q
What is the result of typeof NaN in JavaScript?
Related Questions on Average
What does typeof new Date() evaluate to in JavaScript?
A). date
B). object
C). string
D). null
What does Number('123') return in JavaScript?
A). 123
B). '123'
C). NaN
D). 1
What does typeof true evaluate to in JavaScript?
A). boolean
B). number
C). string
D). undefined
How does JavaScript evaluate typeof 'Hello'?
A). string
B). object
C). undefined
D). null
What will be the output of typeof null in JavaScript?
A). object
B). null
C). undefined
D). string
What does typeof window.evaluate evaluate to in JavaScript?
A). function
B). object
C). string
D). undefined
How does JavaScript evaluate Boolean(0)?
A). 1
B). 0
C). null
D). undefined
What is the result of Boolean('false') in JavaScript?
A). 1
B). 0
C). NaN
D). null
What will be the output of typeof {} in JavaScript?
A). object
B). array
C). null
D). undefined
How does the instanceof operator behave with primitive values in JavaScript?
A). Throws an error
B). Returns true for all primitive values
C). Returns false for all primitive values
D). Primitive values cannot be used with instanceof