The seekable read-only property of the HTMLMediaElement returns a TimeRanges object that contains the time ranges that the user is able to seek to, if any.
var seekable = audioOrVideo.seekable;
A TimeRanges object.
...
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'HTMLMediaElement' in that specification. | Living Standard | No change from HTML5 |
| HTML5 The definition of 'HTMLMediaElement' in that specification. | Recommendation | Initial definition. |
| Media Source Extensions The definition of 'HTMLMediaElement extensions, like for seekable' in that specification. | Candidate Recommendation | Specifies a new algorithm for returning the seekable time range of a media element whose source is a MediaSource object. |
| Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | 8.0 (8.0) | 9 | ? | ? |
Using seekable along with MSE | 23 | (Yes) |
25.0 (25.0)[1] 42.0 (42.0) | 11[2] | 15 | 8 |
| Feature | Android | Edge | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|---|
| Basic support | (Yes) | (Yes) | 8.0 (8.0) | (Yes) | ? | ? | ? |
Using seekable along with MSE | 4.4.4 | (Yes) | No support | No support | 11 | 30 | No support |
[1] Available after switching the about:config preference media.mediasource.enabled to true. In addition, support was limited to a whitelist of sites, for example YouTube, Netflix, and other popular streaming sites. The whitelist was removed and Media Source Extensions was enabled by default in 42+ for all sites.
[2] Only works on Windows 8+.
HTMLMediaElement.
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https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/seekable