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

What is the output of '5' - 3?

A). 2

B). 2

C). 53

D). Error

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

A). symbol

B). object

C). string

D). undefined

Which symbol is used to denote a string template literal?

A). ''

B).

C). ``

D). {}

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 data type of true in JavaScript?

A). String

B). Boolean

C). Number

D). Object

What is the data type of 42 in JavaScript?

A). String

B). Boolean

C). Number

D). Object

How do you declare a variable with an undefined value?

A). let x;

B). let x = '';

C). let x = 0;

D). let x = null;

What is the result of typeof undefined?

A). undefined

B). null

C). object

D). number

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

A). ==

B). !=

C). ===

D). !==

What is the data type of an array in JavaScript?

A). Array

B). Object

C). Collection

D). List