Answer & Solution
Answer: Option A
Solution:
The typeof undefined returns 'undefined' in JavaScript.
Q
What is the outcome of typeof undefined in JavaScript?
Related Questions on Average
What is the data type of the value 'null' (with quotes) in JavaScript?
A). String
B). Number
C). Null
D). Undefined
Which data type represents an intentional absence of any value in JavaScript?
A). Null
B). Undefined
C). String
D). Number
What is the data type of the value true in JavaScript?
A). Number
B). String
C). Boolean
D). Undefined
Which of the following is a primitive data type in JavaScript?
A). Object
B). Array
C). Function
D). Boolean
What is the result of 0 / 0 in JavaScript?
A). Infinity
B). 0
C). NaN
D). 1
Which data type represents positive infinity in JavaScript?
A). Infinity
B). Number
C). NaN
D). Null
Which operator checks if an object is an instance of a specific object type in JavaScript?
A). instanceof
B). typeof
C). isInstanceof
D). isTypeOf
Which data type represents a block of reusable code in JavaScript?
A). String
B). Object
C). Function
D). Number
What does NaN represent in JavaScript?
A). Not a Number
B). Infinity
C). Positive Infinity
D). Negative Infinity
What will be the result of typeof 'hello' in JavaScript?
A). String
B). Number
C). Undefined
D). Function