Animation() | Web API

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Animation() constructor of the Web 动画 API returns a new 动画 对象实例。

var animation = new Animation([effect][, timeline]);

effect 可选: The target effect, as an object based on the AnimationEffectReadOnly interface, to assign to the animation. Although in the future other effects such as SequenceEffect s or GroupEffect s might be possible, the only kind of effect currently available is KeyframeEffect . This can be null (which is the default) to indicate that there should be no effect applied.
timeline 可选: Specifies the timeline with which to associate the animation, as an object of a type based on the AnimationTimeline interface. Currently the only timeline type available is DocumentTimeline , but in the future there my be timelines associated with gestures or scrolling, for example. The default value is Document.timeline , but this can be set to null 还。

在 Follow the White Rabbit example ， Animation() constructor is used to create an 动画 为 rabbitDownKeyframes using the document's timeline :

var rabbitDownAnimation = new Animation(rabbitDownKeyframes, document.timeline);

规范	状态	注释
Web 动画 The definition of 'Animation()' in that specification.	工作草案	编者草案。

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