Q
What is the output of typeof null?

Answer & Solution

Answer: Option C
Solution:
The typeof operator returns 'object' for the null value due to a historical bug in JavaScript.
Related Questions on Average

What will typeof NaN return?

A). number

B). NaN

C). undefined

D). object

Which method can be used to convert a string to a number in JavaScript?

A). parseInt()

B). toString()

C). toNumber()

D). parseStr()

What is the output of '5' + 3?

A). 8

B). 53

C). 8

D). Error

What is the result of typeof Symbol('id')?

A). symbol

B). object

C). string

D). undefined

Which of the following is a falsy value in JavaScript?

A). 0

B).

C). null

D). All of the above

What is the data type of true in JavaScript?

A). String

B). Boolean

C). Number

D). Object

What is the output of typeof function() {}?

A). function

B). object

C). undefined

D). number

What is the output of '5' - 3?

A). 2

B). 2

C). 53

D). Error

What is the result of typeof undefined?

A). undefined

B). null

C). object

D). number

What is the data type of 42 in JavaScript?

A). String

B). Boolean

C). Number

D). Object