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HTML | DOM onprogress Event
  • Last Updated : 31 Jul, 2019

The DOM onprogress event in HTML occurs when the browser is downloading the specified audio/video.

Events occur during the loading process of an audio/video:

  1. onloadstart
  2. ondurationchange
  3. onloadedmetadata
  4. onloadeddata
  5. onprogress
  6. oncanplay
  7. oncanplaythrough

Syntax:

  • In HTML:
    <element onprogress="myScript">
  • In JavaScript:
    object.onprogress = function(){myScript};
  • In JavaScript, using the addEventListener() method:
    object.addEventListener("progress", myScript);

Example: Using the addEventListener() method




<!DOCTYPE html>
<html>
  
<head>
    <title>
        HTML DOM onprogress Event
    </title>
</head>
  
<body>
    <center>
        <h1 style="color:green">
          GeeksforGeks
      </h1>
        <h2>
          HTML DOM onprogress Event
      </h2>
  
        <video controls id="vidID" 
               width="320" height="240">
            <source src=
                    type="video/mp4">
        </video>
  
        <script>
            document.getElementById(
              "vidID").addEventListener("progress", GFGfun);
  
            function GFGfun() {
                alert("Video progress");
            }
        </script>
    </center>
</body>
  
</html>


Output:

  • Before:
  • After:

Supported Browsers: The browsers supported by HTML DOM onprogress Event are listed below:

  • Google Chrome
  • Internet Explorer
  • Firefox
  • Apple Safari
  • Opera

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