Which of the following is a logical operator in JavaScript?
A). &&
B). ||
C). !
D). All of the above
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). =
What is the result of true + false?
A). 0
B). 1
C). truefalse
D). NaN
What is the result of the expression 5 + '5'?
A). 10
B). 55
C). 55
D). NaN
What does the typeof operator return for an array?
A). object
B). array
C). list
D). collection
What does the typeof operator return for a function?
A). function
B). object
C). undefined
D). method
What is the result of 5 === '5'?
A). 1
B). 0
C). 1
D). 0
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 checks if two values are not equal and also checks for type?
A). !=
B). !==
C). <
D). >