VideoTrackList.selectedIndex - Web APIs 编辑
The read-only VideoTrackList property selectedIndex returns the index of the currently selected track, if any, or -1 otherwise.
Syntax
var index = VideoTrackList.selectedIndex;
Value
A number indicating the index of the currently selected track, if any, or -1 otherwise.
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'VideoTrackList: selectedIndex' in that specification. | Living Standard |
Browser compatibility
BCD tables only load in the browser
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