This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The AnimationEffectTimingReadOnly interface of the Web Animations API is comprised of timing properties.

This object is returned by the timing attribute of a KeyframeEffectReadOnly and AnimationEffectReadOnly interfaces. 

While this object is read-only, it is inherited by the mutable AnimationEffectTiming interface associated with KeyframeEffect.


AnimationEffectTimingReadOnly.delayRead only
The number of milliseconds to delay the start of the animation. Defaults to 0.
AnimationEffectTimingReadOnly.directionRead only
Whether the animation runs forwards (normal), backwards (reverse), switches direction after each iteration (alternate), or runs backwards and switches direction after each iteration (alternate-reverse). Defaults to normal.
AnimationEffectTimingReadOnly.durationRead only
The number of milliseconds each iteration of the animation takes to complete. Defaults to 0.
AnimationEffectTimingReadOnly.easingRead only
The rate of the animation's change over time. Accepts the pre-defined values linear, ease, ease-in, ease-out, and ease-in-out, or a custom cubic-bezier value like cubic-bezier(0.42, 0, 0.58, 1). Defaults to linear.
AnimationEffectTimingReadOnly.endDelayRead only
The number of milliseconds to delay after the end of an animation. This is primarily of use when sequencing animations based on the end time of another animation. Defaults to 0.
AnimationEffectTimingReadOnly.fillRead only
Dictates whether the animation's effects should be reflected by the element(s) state prior to playing (backwards), retained after the animation has completed playing (forwards), or both. Defaults to none.
AnimationEffectTimingReadOnly.iterationStartRead only
A number representing which repetition the animation begins at and its progress through it.
AnimationEffectTimingReadOnly.iterationsRead only
The number of times the animation should repeat. Defaults to 1, and can also take a value of infinity to make it repeat infinitely.


Specification Status Comment
Web Animations
The definition of 'AnimationEffectTimingReadOnly' in that specification.
Working Draft Editor's draft.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support No support No support No support No support No support
Feature Android Android Webview Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support No support No support No support No support No support No support No support No support


See also


© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.

Animation AnimationEffectTimingReadOnly API Experimental Interface Reference waapi web animations api