What is the output of typeof null?

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

A). ==

B). !=

C). ===

D). !==

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

A). function

B). object

C). undefined

D). number

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

A). array

B). object

C). number

D). list

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

A). parseInt()

B). toString()

C). toNumber()

D). parseStr()

Which of the following is a falsy value in JavaScript?

A). 0

B).

C). null

D). All of the above

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

A). toString()

B). parseInt()

C). String()

D). Number()

What is the data type of an array in JavaScript?

A). Array

B). Object

C). Collection

D). List

What is the data type of true in JavaScript?

A). String

B). Boolean

C). Number

D). Object

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

A). String

B). Number

C). Object

D). Boolean

What is the result of null == undefined?

A). 1

B). 0

C). Error

D). NaN