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
Which data type is used to represent the absence of a value in JavaScript?
A). Null
B). Undefined
C). NaN
D). Boolean
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 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
What is the data type of the value NaN in JavaScript?
A). Null
B). String
C). Number
D). Boolean
What will be the output of typeof undefined in JavaScript?
A). String
B). Undefined
C). Null
D). Object
What is the data type of the value 'null' (as a string) in JavaScript?
A). Object
B). String
C). Null
D). Undefined
Which symbol is used to denote a comment in JavaScript?
A). //
B). --
C). #
D). /* ... */
What is the data type of the value Infinity in JavaScript?
A). Number
B). String
C). Boolean
D). Null