Answer & Solution
Answer: Option B
Solution:
The const keyword in JavaScript prevents reassignment of the object reference but does not make the object itself immutable or freeze its properties.
1.
What does the const keyword do when used to declare an object in JavaScript?
2.
How can you change the properties of a constant object in JavaScript?
3.
Which of the following will result in an error when using a constant object in JavaScript?
4.
What is the output of the following code snippet?
5.
Which statement best describes the behavior of a constant object in JavaScript?
6.
What happens if you try to reassign a constant object to a new object in JavaScript?
7.
What is the result of the expression Object.keys(person).length for the following code snippet?
8.
Which of the following will cause an error when used with a constant object in JavaScript?
9.
How can you prevent modifications to the properties of a JavaScript object?
10.
What is the correct way to modify a property of a constant object in JavaScript?