Answer & Solution
Answer: Option A
Solution:
The undefined value in JavaScript represents the absence of a value or a variable that has not been initialize
Q
Which primitive value represents absence of value or no value assigned?
Related Questions on Average
Which of the following statements is true about JavaScript's null value?
A). It represents an empty string
B). It represents a non-existent value
C). It represents a boolean value
D). It represents a number
Which of the following statements about primitive values in JavaScript is true?
A). They are mutable
B). They are passed by reference
C). They are stored on the heap
D). They are immutable
What is the data type of the value NaN in JavaScript?
A). Number
B). String
C). Object
D). Undefined
What is the data type of the value undefined in JavaScript?
A). String
B). Object
C). Undefined
D). Number
What is the default value of a variable in JavaScript if it is not initialized?
A). null
B). undefined
C). 0
D). 'undefined'
Which of the following is not a primitive value in JavaScript?
A). Number
B). Boolean
C). Object
D). String
What is the result of the expression undefined + null in JavaScript?
A). undefined
B). null
C). 0
D). Error
What is the result of the expression 5 + '5' in JavaScript?
A). 10
B). '55'
C). '10'
D). Error
Which symbol is used to represent a boolean value in JavaScript?
A). #
B). $
C). !
D). true/false
What is the result of the expression true == 1 in JavaScript?
A). true
B). false
C). Error
D). 1