What does typeof NaN return?
A). number
B). NaN
C). undefined
D). object
What is the result of the expression 5 + '5'?
A). 10
B). 55
C). 55
D). NaN
What is the result of '5' - 2?
A). 3
B). 3
C). 03-May
D). NaN
What is the result of 5 === '5'?
A). 1
B). 0
C). 1
D). 0
Which operator is used for string concatenation in JavaScript?
A). -
B). *
C). +
D). /
What is the result of 10 % 3 in JavaScript?
A). 0
B). 1
C). 2
D). 3
What is the result of the expression 3 * '3'?
A). 9
B). 9
C). 33
D). NaN
Which of the following is a logical operator in JavaScript?
A). &&
B). ||
C). !
D). All of the above
What does the typeof operator return for an array?
A). object
B). array
C). list
D). collection
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