Which operator is used for string concatenation in JavaScript?
A). -
B). *
C). +
D). /
What is the result of '5' - 2?
A). 3
B). 3
C). 03-May
D). NaN
What does the typeof operator return for a function?
A). function
B). object
C). undefined
D). method
Which operator is used to assign a value to a variable in JavaScript?
A). =
B). ==
C). ===
D). =>
What is the output of 10 > 5 && 5 < 2?
A). 1
B). 0
C). 1
D). 0
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
What is the result of the expression 3 * '3'?
A). 9
B). 9
C). 33
D). NaN
Which of the following is not a comparison operator?
A). ==
B). >
C). <=
D). =
What does the typeof operator return for an array?
A). object
B). array
C). list
D). collection
What is the result of the expression 5 + '5'?
A). 10
B). 55
C). 55
D). NaN