This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.
The TrackDefault() getter method of the TrackDefaultList interface allows the TrackDefault objects in the list to be accessed with an array operator (i.e. [].)
var myTrackDefault = TrackDefaultList[index];
TrackDefault object you want to return.A TrackDefault object.
No specific errors are returned, but if the supplied index is great than or equal to TrackDefaultList.length, the operation will return undefined.
TBD.
| Specification | Status | Comment |
|---|---|---|
| Media Source Extensions The definition of 'TrackDefault() getter' in that specification. | Candidate Recommendation | Initial definition. |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
|---|---|---|---|---|---|
| Basic support | ? | Not supported | ? | ? | ? |
| Feature | Android | Firefox Mobile (Gecko) | Firefox OS (Gecko) | IE Phone | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | ? | Not supported | Not supported | ? | ? | Not supported |
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https://developer.mozilla.org/en-US/docs/Web/API/TrackDefaultList/TrackDefault