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 of the following is a valid JavaScript symbol?
A). symbol
B). &symbol
C). #symbol
D). Symbol('description')
Which primitive value represents absence of value or no value assigned?
A). undefined
B). null
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 true + false in JavaScript?
A). true
B). false
C). 1
D). 0
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 a primitive value in JavaScript?
A). A complex data structure
B). A basic data type
C). A function
D). An array
What is the result of the expression undefined + null in JavaScript?
A). undefined
B). null
C). 0
D). Error
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
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