What will be the output of typeof {} in JavaScript?
A). Object
B). Null
C). Undefined
D). Boolean
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 a unique identifier in JavaScript?
A). Identifier
B). Key
C). Object
D). Symbol
Which symbol is used to denote a comment in JavaScript?
A). //
B). --
C). #
D). /* ... */
What is the data type of the value true in JavaScript?
A). Boolean
B). String
C). Number
D). Undefined
What is the data type of the value null in JavaScript?
A). Object
B). String
C). Null
D). Undefined
Which of the following is a valid JavaScript data type for representing text?
A). Text
B). Character
C). String
D). Sentence
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 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 Infinity in JavaScript?
A). Number
B). String
C). Boolean
D). Null