What is the data type of an array in JavaScript?

What is the data type of 42 in JavaScript?

A). String

B). Boolean

C). Number

D). Object

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

A). symbol

B). object

C). string

D). undefined

What will typeof [1, 2, 3] return?

A). array

B). object

C). number

D). list

What is the result of typeof undefined?

A). undefined

B). null

C). object

D). number

Which symbol is used to denote a string template literal?

A). ''

B).

C). ``

D). {}

What will typeof NaN return?

A). number

B). NaN

C). undefined

D). object

Which operator checks both value and type for equality in JavaScript?

A). ==

B). !=

C). ===

D). !==

What is the result of null === undefined?

A). 1

B). 0

C). Error

D). NaN

What is the output of '5' + 3?

A). 8

B). 53

C). 8

D). Error

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

A). String

B). Number

C). Object

D). Boolean