Answer & Solution
Answer: Option D
Solution:
Primitive values in JavaScript are immutable, meaning they cannot be changed once they are create
Q
Which of the following statements about primitive values in JavaScript is true?
Related Questions on Average
Which symbol is used to represent a boolean value in JavaScript?
A). #
B). $
C). !
D). true/false
Which of the following is a primitive data type in JavaScript?
A). Array
B). Object
C). Function
D). String
What is the default value of a variable in JavaScript if it is not initialized?
A). null
B). undefined
C). 0
D). 'undefined'
What is the data type of the value NaN in JavaScript?
A). Number
B). String
C). Object
D). Undefined
Which primitive value represents absence of value or no value assigned?
A). undefined
B). null
C). 0
D). 'undefined'
What happens when you try to access a variable that has not been declared in JavaScript?
A). SyntaxError is thrown
B). ReferenceError is thrown
C). TypeError is thrown
D). Undefined
Which of the following is a valid way to represent the value null in JavaScript?
A). undefined
B). NULL
C). null
D). None of the above
What is the result of the expression 5 + '5' in JavaScript?
A). 10
B). '55'
C). '10'
D). Error
What is the result of the expression true == 1 in JavaScript?
A). true
B). false
C). Error
D). 1
What does the Symbol data type represent in JavaScript?
A). A unique identifier
B). A number
C). A boolean value
D). An object