What does the + operator do when used with two numbers?
A). Concatenates them as strings
B). Adds them
C). Multiplies them
D). Subtracts them
What does typeof NaN return?
A). number
B). NaN
C). undefined
D). object
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 output of 10 > 5 && 5 < 2?
A). 1
B). 0
C). 1
D). 0
What does the typeof operator return for a function?
A). function
B). object
C). undefined
D). method
Which operator would you use to determine the remainder of a division in JavaScript?
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 5 + '5'?
A). 10
B). 55
C). 55
D). NaN
What is the result of true + false?
A). 0
B). 1
C). truefalse
D). NaN