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 AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome ? 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 ? Opera ? Safari ? WebView Android ? Chrome Android ? Edge Mobile ? 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 ? Safari iOS ? Samsung Internet Android ?

Legend

Full support  
Full support
Compatibility unknown  
Compatibility unknown
User must explicitly enable this feature.
User must explicitly enable this feature.

See also

Document Tags and Contributors

Contributors to this page: fscholz, hiikezoe, birtles, rachelnabors, chrisdavidmills
Last updated by: fscholz,