This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The AnimationEffectReadOnly interface of the Web Animations API defines current and future animation effects like KeyframeEffect, which can be passed to Animation objects for playing, and KeyframeEffectReadOnly (which is used by CSS Animations and Transitions).


AnimationEffectReadOnly.timing Read only
The AnimationEffectTimingReadOnly object associated with the animation containing all the animation's timing values.


Returns the calculated timing properties for this Animation Effect.


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

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support Yes ?48 No Yes No
timing Yes No No No Yes No
getComputedTiming Yes No No No Yes No
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes Yes ?48 Yes No ?
timing Yes Yes No No Yes No ?
getComputedTiming Yes Yes No No Yes No ?

See also

Document Tags and Contributors

 Contributors to this page: fscholz, teoli, Sheppy, suzyh, rachelnabors, chrisdavidmills
 Last updated by: fscholz,