This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
.effect property of the Web Animations API gets and sets the target effect of an animation. The target effect may be either an effect object of a type based on
AnimationEffectReadOnly, such as
var effect = Animation.effect; Animation.effect =
AnimationEffectReadOnly object describing the target animation effect for the animation, or
null to indicate no active effect.
The definition of 'Animation.effect' in that specification.
|Working Draft||Editor's draft.|
|Feature||Chrome||Firefox (Gecko)||Microsoft Edge||Internet Explorer||Opera||Safari (WebKit)|
|Basic support||No support||48 (48)||?||No support||No support||No support|
|Feature||Android||Firefox Mobile (Gecko)||IE Phone||Opera Mobile||Safari Mobile|
|Basic support||No support||48.0 (48)||No support||No support||No support|
 The Web Animations API is only enabled by default in Firefox Developer Edition and Nightly builds. You can enable it in beta and release builds by setting the preference
true, and can disable it in any Firefox version by setting this preference to
 This property is supported in Firefox 48 but is read-only. It became writable in Firefox 51.