Answer & Solution
Answer: Option D
Solution:
Primitive data types in JavaScript are passed by value, meaning their values are copied when passed to functions or assigned to variables.
Q
Which of the following statements is true about primitive data types in JavaScript?
Related Questions on Average
Which primitive value represents absence of value or no value assigned?
A). undefined
B). null
C). 0
D). 'undefined'
What is the data type of the value NaN in JavaScript?
A). Number
B). String
C). Object
D). Undefined
What is a primitive value in JavaScript?
A). A complex data structure
B). A basic data type
C). A function
D). An array
What does the Symbol data type represent in JavaScript?
A). A unique identifier
B). A number
C). A boolean value
D). An object
What is the result of the expression true == 1 in JavaScript?
A). true
B). false
C). Error
D). 1
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 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
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 data type of the value undefined in JavaScript?
A). String
B). Object
C). Undefined
D). Number