The modes that an action can use to adjust the apparent timing of the action.



case linear

Specifies linear pacing. Linear pacing causes an animation to occur evenly over its duration.

case easeIn

Specifies ease-in pacing. Ease-in pacing causes the animation to begin slowly and then speed up as it progresses.

case easeOut

Specifies ease-out pacing. Ease-out pacing causes the animation to begin quickly and then slow as it completes.

case easeInEaseOut

Specifies ease-in ease-out pacing. An ease-in ease-out animation begins slowly, accelerates through the middle of its duration, and then slows again before completing.