What is the result of the expression 3 * '3'?
A). 9
B). 9
C). 33
D). NaN
Which of the following operators can be used to compare two values, including type comparison?
A). ==
B). =
C). ===
D). !==
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
Which operator is used for string concatenation in JavaScript?
A). -
B). *
C). +
D). /
What does typeof NaN return?
A). number
B). NaN
C). undefined
D). object
Which operator would you use to determine the remainder of a division in JavaScript?
A). /
B). %
C). //
D). \
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 is a logical operator in JavaScript?
A). &&
B). ||
C). !
D). All of the above
What is the result of true + false?
A). 0
B). 1
C). truefalse
D). NaN