What is the result of 0 / 0 in JavaScript?
A). Infinity
B). 0
C). NaN
D). 1
What is the outcome of typeof undefined in JavaScript?
A). String
B). Undefined
C). Null
D). Number
What does NaN represent in JavaScript?
A). Not a Number
B). Infinity
C). Positive Infinity
D). Negative Infinity
What will be the result of typeof 'hello' in JavaScript?
A). String
B). Number
C). Undefined
D). Function
Which of these is a complex or reference data type in JavaScript?
A). Number
B). Boolean
C). Object
D). String
What will let x = null; console.log(typeof x); output in JavaScript?
A). Object
B). Null
C). Undefined
D). Number
What is the outcome of typeof [1, 2, 3] in JavaScript?
A). String
B). Number
C). Array
D). Object
What is the data type of the value 'null' (with quotes) in JavaScript?
A). String
B). Number
C). Null
D). Undefined
Which of the following is not a valid data type in JavaScript?
A). Array
B). Symbol
C). Map
D). Tuple
Which data type represents an intentional absence of any value in JavaScript?
A). Null
B). Undefined
C). String
D). Number