What is the data type of an array in JavaScript?

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

A). function

B). object

C). undefined

D). number

What is the result of typeof undefined?

A). undefined

B). null

C). object

D). number

What is the output of '5' - 3?

A). 2

B). 2

C). 53

D). Error

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

A). ==

B). !=

C). ===

D). !==

Which symbol is used to denote a string template literal?

A). ''

B).

C). ``

D). {}

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

A). toString()

B). parseInt()

C). String()

D). Number()

What is the result of null === undefined?

A). 1

B). 0

C). Error

D). NaN

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

A). array

B). object

C). number

D). list

What is the result of null == undefined?

A). 1

B). 0

C). Error

D). NaN

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

A). symbol

B). object

C). string

D). undefined