What is the purpose of destroying the functions and objects?

What is the purpose of destroying the functions and objects? Correct Answer All of the mentioned

The primary purpose of a destroy function is to centralize the responsibility for cleaning up anything that the object has done that will: Prevent its reference count from dropping to 0 (for example, removing problematic event listeners and callbacks and unregistering from any services). Consume unnecessary CPU cycles, such as intervals or animations.
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