HTML DOM Track Object

HTMLWeb DevelopmentFront End Technology

The HTML DOM Track Object in HTML represents the <track> element.

Creating a <track> element

var trackObject = document.createElement(“TRACK”)

Here, “trackObject” can have the following properties −

Property
Description
default
Itsets/returns the default state of a track
kind
Itsets/returns the value of the kind attribute of the track
label
Itsets/returns the value of the label attribute of the track
readyState
Itreturns the current state of the track resource
src
Itsets/returns the value of the src attribute of the track
srclang
Itsets/returns the value of the srclang attribute of the track
track
Itreturns a TextTrack object representing the track element's texttrack data

Let us see an example of Track kind property −

Example

 Live Demo

<!DOCTYPE html>
<html>
<head>
<title>Track kind</title>
<style>
   form {
      width:70%;
      margin: 0 auto;
      text-align: center;
   }
   * {
      padding: 2px;
      margin:5px;
   }
   input[type="button"] {
      border-radius: 10px;
   }
</style>
</head>
<body>
   <form>
      <fieldset>
         <legend>Track-kind</legend>
         <video id="videoSelect" controls width="250" src="sample.mp4">
            <track default kind="subtitles" srclang="es" src="sample-es.srt"/>
            <track kind="subtitles" srclang="en" src="sample-en.srt"/>
         </video><br>
         <input type="button" onclick="getTrackDetails()" value="What is the kind of default track?">
         <div id="divDisplay"></div>
      </fieldset>
   </form>
<script>
   var divDisplay = document.getElementById("divDisplay");
   var trackSelect = document.getElementsByTagName("track");
   function getTrackDetails() {
      for(var i=0; i<trackSelect.length; i++)
         if(trackSelect[i].default)
            divDisplay.textContent = 'kind of track for video: '+trackSelect[i].kind;
   }
</script>
</body>
</html>

Output

Before clicking ‘What is the kind of default track?’ button −

After clicking ‘What is the kind of default track?’ button −

raja
Published on 29-Oct-2019 11:12:39
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