7.7. Determining Whether Elements Are Currently Being Animated

7.7.1. Problem

When an animation is in progress, we may want to prevent the user from triggering the animation to run again until the initial animation has finished.

An example of this may be if the user clicks a button to trigger some animation. This could be to reveal some piece of information. For our particular contrived example, when the user clicks the button, we will shake the box back and forth.