Which of the following is a logical operator in JavaScript?

What does typeof NaN return?

A). number

B). NaN

C). undefined

D). object

What does the !! operator do to a value?

A). Negates the value

B). Converts the value to its boolean equivalent

C). Increments the value by 2

D). No effect

What does the + operator do when used with two numbers?

A). Concatenates them as strings

B). Adds them

C). Multiplies them

D). Subtracts them

What does the typeof operator return for an array?

A). object

B). array

C). list

D). collection

Which of the following is not a comparison operator?

A). ==

B). >

C). <=

D). =

Which of the following operators can be used to compare two values, including type comparison?

A). ==

B). =

C). ===

D). !==

What is the result of 5 === '5'?

A). 1

B). 0

C). 1

D). 0

What is the result of true + false?

A). 0

B). 1

C). truefalse

D). NaN

What is the result of the expression 3 * '3'?

A). 9

B). 9

C). 33

D). NaN

Which operator is used to assign a value to a variable in JavaScript?

A). =

B). ==

C). ===

D). =>