index.md

---

title: AnimationEvent
slug: Web/API/AnimationEvent
page-type: web-api-interface
browser-compat: api.AnimationEvent

---

{{APIRef("Web Animations API")}}

The AnimationEvent interface represents events providing information related to animations.

{{InheritanceDiagram}}

Constructor

• {{domxref("AnimationEvent.AnimationEvent", "AnimationEvent()")}}

  • : Creates an AnimationEvent event with the given parameters.

Instance properties

Also inherits properties from its parent {{domxref("Event")}}.

• {{domxref("AnimationEvent.animationName")}} {{ReadOnlyInline}}

  • : A string containing the value of the {{cssxref("animation-name")}} that generated the animation.

• {{domxref("AnimationEvent.elapsedTime")}} {{ReadOnlyInline}}

  • : 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 {{cssxref("animation-delay")}}, in which case the event will be fired with elapsedTime containing (-1 * delay).

• {{domxref("AnimationEvent.pseudoElement")}} {{ReadOnlyInline}}

  • : 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: ''.

Instance methods

Inherits methods from its parent, {{domxref("Event")}}.

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• Using CSS animations

• Animation-related CSS properties and at-rules: {{cssxref("animation")}}, {{cssxref("animation-composition")}}, {{cssxref("animation-delay")}}, {{cssxref("animation-direction")}}, {{cssxref("animation-duration")}}, {{cssxref("animation-fill-mode")}}, {{cssxref("animation-iteration-count")}}, {{cssxref("animation-name")}}, {{cssxref("animation-play-state")}}, {{cssxref("animation-timing-function")}}, {{cssxref("@keyframes")}}.