The currentTime
read-only property of the Web Animations API's AnimationTimeline
interface returns the timeline's current time in milliseconds, or null
if the timeline is inactive.
The currentTime
read-only property of the Web Animations API's AnimationTimeline
interface returns the timeline's current time in milliseconds, or null
if the timeline is inactive.
A number representing the timeline's current time in milliseconds, or null
if the timeline is inactive.
To offer protection against timing attacks and fingerprinting, the precision of animationTimeline.currentTime
might get rounded depending on browser settings. In Firefox, the privacy.reduceTimerPrecision
preference is enabled by default and defaults to 20us in Firefox 59; in 60 it will be 2ms.
js
// reduced time precision (2ms) in Firefox 60 animationTimeline.currentTime; // 23.404 // 24.192 // 25.514 // … // reduced time precision with `privacy.resistFingerprinting` enabled animationTimeline.currentTime; // 49.8 // 50.6 // 51.7 // …
In Firefox, you can also enable privacy.resistFingerprinting
; the precision will be 100ms or the value of privacy.resistFingerprinting.reduceTimerPrecision.microseconds
, whichever is larger.
Specification |
---|
Web Animations # dom-animationtimeline-currenttime |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
currentTime |
84 | 84 | 75 | No | 70 | 13.1 | 84 | 84 | 79 | 60 | 13.4 | 14.0 |
AnimationTimeline
DocumentTimeline
inherits this propertyDocument.timeline
returns a timeline object which inherits this property
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https://developer.mozilla.org/en-US/docs/Web/API/AnimationTimeline/currentTime