Can null and undefined be used in objects?

Can you explain if null and undefined can be used as values in JavaScript objects?

Yes, both null and undefined can be used as values in JavaScript objects. They are valid values that can be assigned to object properties.

What happens if I try to access a property that is set to null?

If you access a property set to null, it will return null. It won't throw an error, but it indicates the absence of a value.

And what about undefined? How does it differ from null?

Undefined means a variable has been declared but not assigned a value, while null is an intentional absence of any object value.

Can I check if a property is null or undefined?

Yes, you can use strict equality checks (===) to differentiate between null and undefined in your conditions.