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

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

A). parseInt()

B). toString()

C). toNumber()

D). parseStr()

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 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 data type of an array in JavaScript?

A). Array

B). Object

C). Collection

D). List

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

A). ==

B). !=

C). ===

D). !==

What is the output of typeof null?

A). null

B). undefined

C). object

D). number

What is the output of '5' - 3?

A). 2

B). 2

C). 53

D). Error

What is the data type of 42 in JavaScript?

A). String

B). Boolean

C). Number

D). Object