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HTML | DOM Track readyState property

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The DOM track readyState property is used to return the value of the current ready state of the track. It is a read-only property, and ready state denotes that the track is ready to play or not. Syntax:
Return Values: It returns a number which represent whether the track is ready to play or not.
  • 0 = NONE => It means the text track has not been obtained
  • 1 = LOADING => It means there are no errors in text track loading and more cues can still be added to the track through the parser.
  • 2 = LOADED => It means the text track has been loaded with no errors.
  • 3 = ERROR => It means the text track was enabled, but something failed when the user tries to obtain it.
<!DOCTYPE html>
        HTML DOM Track readyState Property
<body style="text-align:center;">
    <h1 style="color:green;">
    <h4>Track readyState Property</h4>
    <video width="100" height="100" controls>
        <track src=
            id="myTrack1" kind="subtitles"
            srclang="en" label="English">
        <source id="myTrack" src=
        Click the button to get the
        readyState of the track.
    <button onclick="myFunction()">
        Get readyState
    <p id="gfg"></p>
    <!-- Script to get readyState property -->
        function myFunction() {
            var x = document.getElementById("myTrack1");
                        = x.readyState;

  • Before clicking on the button:
  • After clicking on the button:
Supported Browsers: The browsers supported by HTML DOM Track readyState property are listed below:
  • Google Chrome
  • Internet Explorer 10.0+
  • Opera

Last Updated : 07 Nov, 2019
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