What is the data type of the value NaN in JavaScript?
A). Null
B). String
C). Number
D). Boolean
What will the data type of the variable name be if it is assigned the value 'John Doe'?
A). Number
B). String
C). Boolean
D). Undefined
What is the data type of the value null in JavaScript?
A). Object
B). String
C). Null
D). Undefined
What is the data type of the value Infinity in JavaScript?
A). Number
B). String
C). Boolean
D). Null
What data type is used to represent a collection of key-value pairs in JavaScript?
A). Object
B). Array
C). Map
D). Set
What is the data type of the value 'null' (as a string) in JavaScript?
A). Object
B). String
C). Null
D). Undefined
Which data type is used to represent the absence of a value in JavaScript?
A). Null
B). Undefined
C). NaN
D). Boolean
What will be the output of typeof undefined in JavaScript?
A). String
B). Undefined
C). Null
D). Object
Which of the following is not a valid JavaScript data type?
A). Integer
B). Object
C). Symbol
D). NaN
What will be the output of typeof {} in JavaScript?
A). Object
B). Null
C). Undefined
D). Boolean