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 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). =
What is the result of true + false?
A). 0
B). 1
C). truefalse
D). NaN
Which of the following operators can be used to compare two values, including type comparison?
A). ==
B). =
C). ===
D). !==
What is the value of the expression null == undefined?
A). 1
B). 0
C). null
D). undefined
What is the result of the expression 3 * '3'?
A). 9
B). 9
C). 33
D). NaN
What is the result of 10 % 3 in JavaScript?
A). 0
B). 1
C). 2
D). 3