Answer & Solution
Answer: Option A
Solution:
NaN stands for 'Not a Number' and represents an invalid or unrepresentable value resulting from arithmetic operations.
Q
What does NaN represent in JavaScript?
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Which of these is a complex or reference data type in JavaScript?
A). Number
B). Boolean
C). Object
D). String
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A). Infinity
B). 0
C). NaN
D). 1
What is the data type of the value true in JavaScript?
A). Number
B). String
C). Boolean
D). Undefined
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A). Null
B). Undefined
C). String
D). Number
What is the data type of the value 'null' (with quotes) in JavaScript?
A). String
B). Number
C). Null
D). Undefined
Which operator checks if an object is an instance of a specific object type in JavaScript?
A). instanceof
B). typeof
C). isInstanceof
D). isTypeOf
Which data type represents positive infinity in JavaScript?
A). Infinity
B). Number
C). NaN
D). Null
What is the data type of the value undefined in JavaScript?
A). Number
B). Boolean
C). String
D). Undefined
What will let x = null; console.log(typeof x); output in JavaScript?
A). Object
B). Null
C). Undefined
D). Number
What is the data type of the value 42 in JavaScript?
A). String
B). Boolean
C). Number
D). Null