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
What happens when you add two numbers using the + operator in JavaScript?
A). The numbers are concatenated
B). The numbers are multiplied
C). The numbers are added
D). An error occurs
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 == 1 in JavaScript?
A). true
B). false
C). Error
D). 1
Which of the following is a primitive data type in JavaScript?
A). Array
B). Object
C). Function
D). String
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
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 undefined + null in JavaScript?
A). undefined
B). null
C). 0
D). Error
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