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 a logical operator in JavaScript?
A). &&
B). ||
C). !
D). All of the above
Which operator would you use to determine the remainder of a division in JavaScript?
A). /
B). %
C). //
D). \
What does typeof NaN return?
A). number
B). NaN
C). undefined
D). object
What is the value of the expression null == undefined?
A). 1
B). 0
C). null
D). undefined
What does the typeof operator return for a function?
A). function
B). object
C). undefined
D). method
What does the typeof operator return for an array?
A). object
B). array
C). list
D). collection
What is the result of '5' - 2?
A). 3
B). 3
C). 03-May
D). NaN
Which operator is used for string concatenation in JavaScript?
A). -
B). *
C). +
D). /
Which operator is used to assign a value to a variable in JavaScript?
A). =
B). ==
C). ===
D). =>