Web/API/HTMLMediaElement/buffered

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
HTML Living StandardThe definition of 'HTMLMediaElement.buffered' in that specification.	Living Standard	No change from HTML5
HTML5The definition of 'HTMLMediaElement.buffered' in that specification.	Recommendation	Initial definition.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`buffered`	Chrome Full support 43	Edge Full support 12	Firefox Full support 4	IE Full support 9	Opera Full support Yes	Safari Full support 6	WebView Android Full support 43	Chrome Android Full support 43	Firefox Android Full support Yes	Opera Android Full support Yes	Safari iOS Full support Yes	Samsung Internet Android Full support 4.0

Legend

Full support: Full support