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

The getComputedTiming() method of the AnimationEffect interface returns the calculated timing properties for this animation effect.

Although many of the attributes of the returned object are common to the EffectTiming contained in the object returned by the AnimationEffect.getTiming() method, the values returned by this object differ in the following ways:

Returns the calculated value of the iteration duration. If EffectTiming.duration is the string auto, this attribute will return 0.
The auto value is replaced with the appropriate EffectTiming.fill value.

These values are comparable to the computed styles of an Element returned using window.getComputedStyle(elem).


var currentTimeValues = animation.getComputedTiming();



Return Value

A ComputedEffectTiming dictionary object, which contains the following properties:

The end time of the animation in milliseconds from the animation's start (if the KeyframeEffect is associated with an Animation). (Also includes EffectTiming.endDelay in that calculation.)
The length of time in milliseconds that the animation's effects will run. This is equal to the iteration duration multiplied by the iteration count.
The current time of the animation in milliseconds. If the KeyframeEffect is not associated with an Animation, its value is null.
Indicates how far along the animation is through its current iteration with values between 0 and 1. Returns null if the animation is not running or its KeyframeEffect isn't associated with an Animation.
The number of times this animation has looped, starting from 0. Returns null if the animation is not running or its KeyframeEffect isn't associated with an Animation.


Specification Status Comment
Web Animations
The definition of 'AnimationEffect.getComputedTiming()' in that specification.
Working Draft Editor's draft.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
getComputedTimingChrome ? Edge ? Firefox Full support 63IE ? Opera ? Safari ? WebView Android ? Chrome Android ? Firefox Android Full support 63Opera Android ? Safari iOS ? Samsung Internet Android ?


Full support  
Full support
Compatibility unknown  
Compatibility unknown

See also