Which data type is used to represent the absence of a value in JavaScript?
A). Null
B). Undefined
C). NaN
D). Boolean
What is the data type of the value null in JavaScript?
A). Object
B). String
C). Null
D). Undefined
What will be the output of typeof undefined in JavaScript?
A). String
B). Undefined
C). Null
D). Object
Which of the following data types is used to represent a function in JavaScript?
A). Func
B). Function
C). Method
D). Procedure
Which data type is used to represent a list of elements in JavaScript?
A). List
B). Array
C). Tuple
D). Set
Which of the following is a valid JavaScript data type for representing text?
A). Text
B). Character
C). String
D). Sentence
What will be the output of typeof {} in JavaScript?
A). Object
B). Null
C). Undefined
D). Boolean
Which of the following is not a valid JavaScript variable name according to naming conventions?
A). myVariable
B). _myVariable
C). 2ndVariable
D). MyVariable
Which data type is used to represent a unique identifier in JavaScript?
A). Identifier
B). Key
C). Object
D). Symbol
Which of the following is not a valid JavaScript data type?
A). Integer
B). Object
C). Symbol
D). NaN