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