What is the result of 0 / 0 in JavaScript?
A). Infinity
B). 0
C). NaN
D). 1
What does NaN represent in JavaScript?
A). Not a Number
B). Infinity
C). Positive Infinity
D). Negative Infinity
Which of the following is a primitive data type in JavaScript?
A). Object
B). Array
C). Function
D). Boolean
Which of the following is not a valid data type in JavaScript?
A). Array
B). Symbol
C). Map
D). Tuple
Which data type represents unique and immutable values in JavaScript introduced in ES6?
A). Symbol
B). Object
C). Array
D). Function
Which data type represents an intentional absence of any value in JavaScript?
A). Null
B). Undefined
C). String
D). Number
Which data type represents a block of reusable code in JavaScript?
A). String
B). Object
C). Function
D). Number
What is the data type of the value true in JavaScript?
A). Number
B). String
C). Boolean
D). Undefined
What is the data type of the value undefined in JavaScript?
A). Number
B). Boolean
C). String
D). Undefined
Which data type represents positive infinity in JavaScript?
A). Infinity
B). Number
C). NaN
D). Null