How can you ensure that a constant object remains unchanged in JavaScript?

What is the correct way to modify a property of a constant object in JavaScript?

A). A. Use the delete keyword

B). B. Use the const keyword for the property

C). C. Use dot notation or bracket notation to access and modify the property

D). D. Use Object.freeze() to freeze the object

How can you change the properties of a constant object in JavaScript?

A). A. Use Object.freeze()

B). B. Use const for each property

C). C. Use the delete keyword to remove properties

D). D. Use dot notation or bracket notation

Which statement about constant objects in JavaScript is correct?

A). A. Constant objects can have their properties reassigned

B). B. Constant objects cannot have properties added or removed

C). C. Constant objects are only applicable to primitive values

D). D. Constant objects are mutable

How can you prevent modifications to the properties of a JavaScript object?

A). A. Use Object.preventExtensions()

B). B. Use const for each property

C). C. Use Object.freeze() to freeze the object

D). D. All of the above

Which of the following will cause an error when used with a constant object in JavaScript?

A). A. Modifying a property using bracket notation

B). B. Adding a property using dot notation

C). C. Deleting a property

D). D. Reassigning the object reference

What does the const keyword do when used to declare an object in JavaScript?

A). A. Makes the object immutable

B). B. Prevents reassignment of the object reference

C). C. Freezes all properties of the object

D). D. All of the above

Which of the following is a valid way to define a constant object in JavaScript?

A). A. const obj = { a: 1, b: 2 };

B). B. const obj = new Object({ a: 1, b: 2 });

C). C. Both A and B

D). D. None of the above

What is the output of the following code snippet?

A). A. { x: 10, y: 20 }

B). B. { x: 20, y: 10 }

C). C. { x: 10 }

D). D. Error

What is the output of the following code snippet?

A). A. { a: 1, b: 2, c: 3 }

B). B. { a: 1, b: 2 }

C). C. { c: 3 }

D). D. Error

Which statement best describes the behavior of a constant object in JavaScript?

A). A. The object and its properties cannot be changed

B). B. The object reference cannot be reassigned

C). C. All properties are immutable

D). D. The object cannot be modified after declaration