JavaScript Media onprogress Event

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JavaScript Media onprogress Event

The onprogress event occurs periodically as the browser loads a image/video (resource).

onprogress Event as Attribute

Example

HTML Online Editor
<!DOCTYPE html> <html> <body> <video onprogress="myFunction()" controls> <source src="/hawk.mp4" type="video/mp4"> </video> <script> function myFunction(){ alert("Video is downloading"); } </script> </body> </html>

Syntax

As Attribute

<element onprogress = "JavaScript">

As Property

object.onprogress = function(){ // code };

Using Event Listener

object.addEventListener("progress" , myScript);

onprogress Event as Property

Example

HTML Online Editor
<!DOCTYPE html> <html> <body> <video controls> <source src="/hawk.mp4" type="video/mp4"> </video> <script> var x = document.getElementsByTagName("video")[0]; function myFunction(){ alert("Video is downloading"); } x.onprogress = myFunction; </script> </body> </html>

Using addEventListener() Method

Note: The addEventListener() method is not supported in Internet Explorer 8 and below.

Example

HTML Online Editor
<!DOCTYPE html> <html> <body> <video controls> <source src="/hawk.mp4" type="video/mp4"> </video> <script> var x = document.getElementsByTagName("video")[0]; function myFunction(){ alert("Video is downloading"); } x.addEventListener("progress", myFunction); </script> </body> </html>

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