What is the result of null == undefined?

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

A). symbol

B). object

C). string

D). undefined

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

A). toString()

B). parseInt()

C). String()

D). Number()

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

A). ==

B). !=

C). ===

D). !==

What is the result of typeof undefined?

A). undefined

B). null

C). object

D). number

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

A). String

B). Number

C). Object

D). Boolean

What is the output of '5' - 3?

A). 2

B). 2

C). 53

D). Error

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 will typeof NaN return?

A). number

B). NaN

C). undefined

D). object

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