AnimationTimeline interface of the Web Animations API represents the timeline of an animation. This interface exists to define timeline features (inherited by
DocumentTimeline and future timeline types) and is not itself directly used by developers. Anywhere you see
AnimationTimeline, you should use
DocumentTimeline or any other timeline type instead.
Returns the time value in milliseconds for this timeline or
nullif this timeline is inactive.
|Web Animations Level 2 (Web Animations 2)|
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