JavaScript Media onratechange Event
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JavaScript Media onratechange Event
The onratechange event occurs when the playing speed of the audio/video is changed.
onratechange Event as Attribute
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<video id="myVid" onratechange="myFunction()" controls>
<source src="/hawk.mp4" type="video/mp4">
</video>
<button type="button" onclick="fastForward()">Fast Forward</button>
<script>
function myFunction() {
alert("The playing speed of the video was changed");
}
function fastForward(){
document.getElementById("myVid").playbackRate = 2;
}
</script>
</body>
</html>
Syntax
As Attribute
<element onratechange = "JavaScript">
As Property
object.onratechange = function(){
// code
};
Using Event Listener
object.addEventListener("ratechange" , myScript);
onratechange Event as Property
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<video id="myVid" controls>
<source src="/hawk.mp4" type="video/mp4">
</video>
<button type="button" onclick="fastForward()">Fast Forward</button>
<script>
var x = document.getElementsByTagName("video")[0];
function myFunction() {
alert("The playing speed of the video was changed");
}
function fastForward(){
document.getElementById("myVid").playbackRate = 2;
}
x.onratechange = 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 id="myVid" controls>
<source src="/hawk.mp4" type="video/mp4">
</video>
<button type="button" onclick="fastForward()">Fast Forward</button>
<script>
var x = document.getElementsByTagName("video")[0];
function myFunction() {
alert("The playing speed of the video was changed");
}
function fastForward(){
document.getElementById("myVid").playbackRate = 2;
}
x.addEventListener("ratechange", myFunction);
</script>
</body>
</html>
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