What is the data type of the value Infinity in JavaScript?
A). Number
B). String
C). Boolean
D). Null
What is the data type of the value null in JavaScript?
A). Object
B). String
C). Null
D). Undefined
Which symbol is used to denote a comment in JavaScript?
A). //
B). --
C). #
D). /* ... */
Which of the following is not a valid JavaScript variable name according to naming conventions?
A). myVariable
B). _myVariable
C). 2ndVariable
D). MyVariable
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 true in JavaScript?
A). Boolean
B). String
C). Number
D). Undefined
What data type is used to represent a collection of key-value pairs in JavaScript?
A). Object
B). Array
C). Map
D). Set
What will be the output of typeof NaN in JavaScript?
A). String
B). Number
C). NaN
D). Undefined
Which data type is used to represent a unique identifier in JavaScript?
A). Identifier
B). Key
C). Object
D). Symbol
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