Which function can convert a number to a string in JavaScript?
A). toString()
B). parseInt()
C). String()
D). Number()
What is the result of null == undefined?
A). 1
B). 0
C). Error
D). NaN
What will typeof NaN return?
A). number
B). NaN
C). undefined
D). object
What is the result of null === undefined?
A). 1
B). 0
C). Error
D). NaN
Which operator checks both value and type for equality in JavaScript?
A). ==
B). !=
C). ===
D). !==
What is the output of '5' + 3?
A). 8
B). 53
C). 8
D). Error
Which method can be used to convert a string to a number in JavaScript?
A). parseInt()
B). toString()
C). toNumber()
D). parseStr()
Which of the following is not a primitive data type in JavaScript?
A). String
B). Number
C). Object
D). Boolean
What is the data type of true in JavaScript?
A). String
B). Boolean
C). Number
D). Object
What will typeof [1, 2, 3] return?
A). array
B). object
C). number
D). list