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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
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
timeline | Chrome No support No | Edge No support No | Firefox
No support
No
| IE Full support Yes | Opera Full support Yes | Safari Full support Yes | WebView Android No support No | Chrome Android No support No | Edge Mobile No support No | Firefox Android
No support
No
| Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android ? |
Legend
- Full support
- Full support
- No support
- No support
- Compatibility unknown
- Compatibility unknown
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- See implementation notes.
- See implementation notes.