The HTMLMediaElement.buffered read-only property returns a new TimeRanges object that indicates the ranges of the media source that the browser has buffered (if any) at the moment the buffered property is accessed.
Note: This feature is not available in Web Workers.
Syntax
var timeRange = audioObject.buffered
Value
A TimeRanges object. This object is normalized, which means that ranges are ordered, don't overlap, aren't empty, and don't touch (adjacent ranges are folded into one bigger range).
Example
var obj = document.createElement('video');
console.log(obj.buffered); // TimeRanges { length: 0 }
Specifications
| Specification | Status | Comment |
|---|---|---|
| WHATWG HTML Living Standard The definition of 'HTMLMediaElement.buffered' in that specification. |
Living Standard | No change from HTML5 |
| HTML5 The definition of 'HTMLMediaElement.buffered' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
buffered property |
(Yes) | (Yes) | 4.0 (2.0) | 9 | ? | ? |
| Feature | Android | Edge | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
buffered property |
(Yes) | (Yes) | 4.0 (2.0) | (Yes) | ? | ? | ? |
See also
- The interface defining it,
HTMLMediaElement.