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This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The timeline readonly property of the Document interface represents the default timeline of the current document. This timeline is a special instance of DocumentTimeline that is automatically created on page load. 

This timeline is unique to each document and persists for the lifetime of the document including calls to Document.open().

The time values for this timeline are calculated as a fixed offset from the global clock such that the zero time corresponds to the navigationStart moment plus a signed delta known as the origin time. Prior to establishing the navigationStart moment, the document timeline is inactive.

Note: A document timeline that is associated with a non-active document is also considered to be inactive.

Syntax

var pageTimeline = document.timeline;
var thisMoment = pageTimeline.currentTime;

Value

A DocumentTimeline object.

Specifications

Specification Status Comment
Web Animations
The definition of 'document.timeline' in that specification.
Working Draft Editor's draft.

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support No No No1 Yes Yes Yes
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support No No No No1 Yes Yes ?

1. Currently only supported in Firefox Nightly (version 48).

See also

ドキュメントのタグと貢献者

このページの貢献者: ngyikp, fscholz, chrisdavidmills, rachelnabors
最終更新者: ngyikp,