Which symbol is used to denote a comment in JavaScript?
A). //
B). --
C). #
D). /* ... */
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 NaN in JavaScript?
A). Null
B). String
C). Number
D). Boolean
Which of the following data types is used to represent a function in JavaScript?
A). Func
B). Function
C). Method
D). Procedure
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 Infinity in JavaScript?
A). Number
B). String
C). Boolean
D). Null
Which data type is used to represent a list of elements in JavaScript?
A). List
B). Array
C). Tuple
D). Set
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 undefined in JavaScript?
A). String
B). Undefined
C). Null
D). Object
What is the data type of the value null in JavaScript?
A). Object
B). String
C). Null
D). Undefined