Track default attribute

HTML DOM Track Object

Definition and Usage

default Sets or returns the default state of the track.

This attribute reflects the <track> default attribute.

When this attribute is set, it specifies that the track is enabled if the user's preference does not indicate that another track is more suitable.

Note:Each media element cannot have multiple track elements with the default attribute.

See also:

HTML Reference Manual:HTML <track> default Attribute

Instance

Example 1

Get the default state of the track:

var x = document.getElementById("myTrack").default;

The result of x may be:

false

Example 2

Set the default state of the track:

document.getElementById("myTrack").default = true;

Syntax

Return default attribute:

trackObject.default

Set default attribute:

trackObject.default = true|false

Attribute value

Value Description
true|false

Specifies the default state of the track.

  • true - The track will be enabled if the user's preference does not indicate that another track is more suitable
  • false - Default. The track will not be enabled if the user's preference does not indicate that another track is more suitable

Technical Details

Return Value: Boolean value indicating the default state of the track.

Browser Support

Chrome Edge Firefox Safari Opera
Chrome Edge Firefox Safari Opera
Supported 10.0 Not Supported Not Supported Supported

HTML DOM Track Object