{"json_modified": "2016-03-28T08:47:22.614777", "uuid": "1447a14f-dbac-4b86-a733-7fb93ff83caf", "title": "TrackDefaultList.length", "url": "/en-US/docs/Web/API/TrackDefaultList/length", "tags": ["API", "Source", "TrackDefaultList", "Reference", "Audio", "Property", "source", "Experimental", "Extensions", "Video", "length", "MSE", "Media"], "translations": [], "modified": "2015-10-16T07:02:10", "label": "TrackDefaultList.length", "localization_tags": [], "locale": "en-US", "id": 164297, "last_edit": "2015-10-16T06:29:09", "summary": "The <code><strong>length</strong></code> read-only property of the <a href=\"/en-US/docs/Web/API/TrackDefaultList\" title=\"The TrackDefaultList interface represents a simple container list for multiple TrackDefault objects.\"><code>TrackDefaultList</code></a> interface returns the number of <a href=\"/en-US/docs/Web/API/TrackDefault\" title=\"The TrackDefault interface provides a SourceBuffer with kind, label, and language information for tracks that do not contain this information in the initialization segments of a media chunk.\"><code>TrackDefault</code></a> objects in the list.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Value", "title": "Value"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}, {"id": "See_also", "title": "See also"}], "slug": "Web/API/TrackDefaultList/length", "review_tags": []}