What is the output of typeof null?

Which function can convert a number to a string in JavaScript?

A). toString()

B). parseInt()

C). String()

D). Number()

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

Which of the following is a falsy value in JavaScript?

A). 0

B).

C). null

D). All of the above

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

A). symbol

B). object

C). string

D). undefined

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

A). parseInt()

B). toString()

C). toNumber()

D). parseStr()

What will typeof NaN return?

A). number

B). NaN

C). undefined

D). object

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

A). array

B). object

C). number

D). list

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

A). ==

B). !=

C). ===

D). !==

What is the output of '5' - 3?

A). 2

B). 2

C). 53

D). Error