{"json_modified": "2016-06-28T11:02:19.100539", "uuid": "159aebe8-d39b-4b21-81f2-7d5e065b5523", "title": "MediaStream.getTrackById()", "url": "/en-US/docs/Web/API/MediaStream/getTrackById", "tags": ["WebRTC", "MediaStream API", "getTrackById", "Reference", "MediaStream", "Media", "Method"], "translations": [], "modified": "2016-06-28T11:02:19", "label": "MediaStream.getTrackById()", "localization_tags": [], "locale": "en-US", "id": 187452, "last_edit": "2016-06-28T11:02:14", "summary": "The <strong><code>MediaStream.getTrackById()</code></strong> method returns a <a href=\"/en-US/docs/Web/API/MediaStreamTrack\" title=\"The MediaStreamTrack interface represents&#xA0;a media source in the User Agent, like video or audio tracks.\"><code>MediaStreamTrack</code></a> object representing the track with the specified ID string. If there is no track with the specified ID, this method returns <code>null</code>.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Parameters", "title": "Parameters"}, {"id": "Return_value", "title": "Return value"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/MediaStream/getTrackById", "review_tags": []}