Q
What will be the output of typeof NaN in JavaScript?

Answer & Solution

Answer: Option B
Solution:
The typeof operator in JavaScript returns the data type of a variable or expression. In this case, typeof NaN will return the string 'number', indicating that NaN is considered a special numeric value in JavaScript rather than a distinct data type.
Related Questions on Average

What is the data type of the value true in JavaScript?

A). Boolean

B). String

C). Number

D). Undefined

Which data type is used to represent the absence of a value in JavaScript?

A). Null

B). Undefined

C). NaN

D). Boolean

Which data type is used to represent a list of elements in JavaScript?

A). List

B). Array

C). Tuple

D). Set

What is the data type of the value NaN in JavaScript?

A). Null

B). String

C). Number

D). Boolean

Which of the following is not a valid JavaScript data type?

A). Integer

B). Object

C). Symbol

D). NaN

Which of the following is not a valid JavaScript variable name according to naming conventions?

A). myVariable

B). _myVariable

C). 2ndVariable

D). MyVariable

What is the data type of the value Infinity in JavaScript?

A). Number

B). String

C). Boolean

D). Null

What data type is used to represent a collection of key-value pairs in JavaScript?

A). Object

B). Array

C). Map

D). Set

What is the data type of the value null in JavaScript?

A). Object

B). String

C). Null

D). Undefined

What will the data type of the variable name be if it is assigned the value 'John Doe'?

A). Number

B). String

C). Boolean

D). Undefined