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JavaScript & HTML DOM Reference Manual

Overview

JavaScript Object

JavaScript Array Object JavaScript Boolean Object JavaScript Date Object JavaScript Math Object JavaScript Number Object JavaScript String Object JavaScript RegExp Object JavaScript Global properties / functions JavaScript Operator

Browser Object

Window Object Navigator Object Screen Object History Object Location Object

DOM Object

HTML DOM Document Object HTML DOM Element object HTML DOM Attribute object HTML DOM Event object

HTML Object

<a> <area> <audio> <base> <blockquote> <body> <button> <canvas> <col> <colgroup> <datalist> <del> <details> <dialog> <embed> <fieldset> <form> <iframe> <frameset > <img> <ins> <input> - button <input> - checkbox <input> - color <input> - date <input> - datetime <input> - datetime-local <input> - email <input> - file <input> - hidden <input> - image <input> - month <input> - number <input> - range <input> - password <input> - radio <input> - reset <input> - search <input> - submit <input> - text <input> - time <input> - url <input> - week <keygen> <link> <label> <legend> <li> <map> <menu> <menuItem> <meta> <meter> <object> <ol> <optgroup> <option> <param> <progress> <q> <script> <select> <source> <style> <table> <td> <th> <tr> <textarea> <title> <time> <track> <video>

HTML DOM Track default properties

Previous: HTML DOM Track kind property

Next: HTML DOM Video Object

Examples

Gets the default state for a track:

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

x The output is:

false

Definition and Usage

default attribute is used to set or return to the default state of the track.

This property reflects the <track> default properties.

If you use the default attribute, you should use the provisions of the tracks, if the user does not select the other tracks words.

Note: You can not have more than one element of the track rail element of each media element can have only one default property. T

Browser Support

Internet Explorer, Opera, and Chrome browser support srclang property.

Note: Firefox, Safari or Internet Explorer 9 and earlier versions do not support IE srclang property.

grammar

Returns default attributes:

trackObject .default

Set default properties:

trackObject .default = true | false

Property Value

value	description
true \| false	The default state of the rail track true - enabled track false - default. Disable Track

technical details

return value:	Boolean value that indicates the default state of the track

More examples

Examples

Setting track default:

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

Related Pages

HTML Reference Manual: HTML <Track> default properties

Track Object Reference

Previous: HTML DOM Track kind property

Next: HTML DOM Video Object