AnimationEvent
The AnimationEvent interface represents events providing information related to animations.
Properties
The AnimationEvent.animationName read-only property is a string containing the value of the animation-name CSS property associated with the transition.
The AnimationEvent.elapsedTime read-only property is a float giving the amount of time the animation has been running, in seconds, when this event fired, excluding any time the animation was paused. For an animationstart event, elapsedTime is 0.0 unless there was a negative value for animation-delay, in which case the event will be fired with elapsedTime containing (-1 * delay).
The AnimationEvent.pseudoElement read-only property is a string, starting with '::', containing the name of the pseudo-element the animation runs on. If the animation doesn't run on a pseudo-element but on the element, an empty string: ''.