KeyframeEffect.iterationComposite

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

The iterationComposite property of a KeyframeEffect resolves how the the animation's property value changes accumulate or override each other upon each of the animation's iterations.

Syntax

// getting
var iterationCompositeEnumeration = keyframeEffect.iterationComposite;

// setting
keyframeEffect.iterationComposite = 'replace';

Values

replace
The keyframeEffect value produced is independent of the current iteration.
accumulate
Subsequent iterations of the keyframeEffect build on the final value of the previous iteration.

Specifications

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

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
iterationCompositeChrome ? Edge ? Firefox Full support 63
Disabled
Full support 63
Disabled
Disabled From version 63: this feature is behind the dom.animations-api.compositing.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
IE No support NoOpera No support NoSafari No support NoWebView Android ? Chrome Android ? Firefox Android Full support 63
Disabled
Full support 63
Disabled
Disabled From version 63: this feature is behind the dom.animations-api.compositing.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
Opera Android No support NoSafari iOS No support NoSamsung Internet Android ?

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
User must explicitly enable this feature.
User must explicitly enable this feature.

See also