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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