What is the data type of the value null in JavaScript?
A). Object
B). String
C). Null
D). Undefined
Which data type is used to represent the absence of a value in JavaScript?
A). Null
B). Undefined
C). NaN
D). Boolean
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 symbol is used to denote a comment in JavaScript?
A). //
B). --
C). #
D). /* ... */
What will be the data type of the result when dividing a number by zero in JavaScript?
A). Infinity
B). NaN
C). Undefined
D). Null
What will be the output of typeof undefined in JavaScript?
A). String
B). Undefined
C). Null
D). Object
Which of the following is not a valid JavaScript data type?
A). Integer
B). Object
C). Symbol
D). NaN
What data type is used to represent a collection of key-value pairs in JavaScript?
A). Object
B). Array
C). Map
D). Set
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' (as a string) in JavaScript?
A). Object
B). String
C). Null
D). Undefined