Q
What will let x = null; console.log(typeof x); output in JavaScript?

Answer & Solution

Answer: Option A
Solution:
Despite being considered a bug in JavaScript, the typeof null returns 'object'.
Related Questions on Average

Which data type represents a block of reusable code in JavaScript?

A). String

B). Object

C). Function

D). Number

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

A). Number

B). String

C). Boolean

D). Undefined

What does NaN represent in JavaScript?

A). Not a Number

B). Infinity

C). Positive Infinity

D). Negative Infinity

What is the result of 0 / 0 in JavaScript?

A). Infinity

B). 0

C). NaN

D). 1

What will be the result of typeof 'hello' in JavaScript?

A). String

B). Number

C). Undefined

D). Function

Which of these is a complex or reference data type in JavaScript?

A). Number

B). Boolean

C). Object

D). String

What is the data type of the value 'null' (with quotes) in JavaScript?

A). String

B). Number

C). Null

D). Undefined

Which of the following is a primitive data type in JavaScript?

A). Object

B). Array

C). Function

D). Boolean

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

A). Array

B). Symbol

C). Map

D). Tuple

Which data type represents an intentional absence of any value in JavaScript?

A). Null

B). Undefined

C). String

D). Number