A callback function is executed after an effect or animation is completed.
It ensures that the next code runs only when the animation finishes.
Without callback functions, code may execute before the animation is complete.
The callback function runs only after the hide animation ends.
Callback functions are written as the second parameter.
Callbacks help control animation sequence.
Callback Notes:
- Executes after animation
- Prevents timing issues
- Improves animation flow
- Useful for chained effects