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

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`iterationComposite`	Chrome ?	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 No	Opera No support No	Safari No support No	WebView 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 No	Safari iOS No support No	Samsung 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.