Q47
What is the purpose of destroying the functions and objects?
A.
Consume unnecessary CPU cycles
B.
Prevent the dropping of reference count to 0
C.
Centralize the responsibility to clean up
D.
All of the mentioned
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
The primary purpose of a destroy function is to centralize the responsibility for cleaning up anything that the object has done that will:1. Prevent its reference count from dropping to 0 (for example, removing problematic event listeners and callbacks and unregistering from any services).
2. Consume unnecessary CPU cycles, such as intervals or animations.