Which of the following is a falsy value in JavaScript?

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

A). symbol

B). object

C). string

D). undefined

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

A). ==

B). !=

C). ===

D). !==

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 is the result of typeof undefined?

A). undefined

B). null

C). object

D). number

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

A). parseInt()

B). toString()

C). toNumber()

D). parseStr()

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

A). array

B). object

C). number

D). list

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

A). function

B). object

C). undefined

D). number

What is the data type of an array in JavaScript?

A). Array

B). Object

C). Collection

D). List

Which symbol is used to denote a string template literal?

A). ''

B).

C). ``

D). {}