Q
What does the !! operator do to a value?

Answer & Solution

Answer: Option B
Solution:
The !! operator converts any value to its boolean equivalent by first negating it and then negating the result.
Related Questions on Average

What does the typeof operator return for a function?

A). function

B). object

C). undefined

D). method

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

A). 9

B). 9

C). 33

D). NaN

What is the result of the expression 5 + '5'?

A). 10

B). 55

C). 55

D). NaN

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

A). Concatenates them as strings

B). Adds them

C). Multiplies them

D). Subtracts them

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

A). =

B). ==

C). ===

D). =>

Which operator would you use to determine the remainder of a division in JavaScript?

A). /

B). %

C). //

D). \

Which of the following is a logical operator in JavaScript?

A). &&

B). ||

C). !

D). All of the above

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

A). 1

B). 0

C). 1

D). 0

What does typeof NaN return?

A). number

B). NaN

C). undefined

D). object

Which of the following is not a comparison operator?

A). ==

B). >

C). <=

D). =