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HTML DOM Video preload Property
The HTML DOM Video preload property returns a string corresponding to when the creator thinks the video data should load. Though sometimes this may be ignored.Default value is ‘metadata’.
Syntax
Following is the syntax −
Returning string value
mediaObject.preload
Setting preload to a string
mediaObject.preload = “auto|metadata|none”
Let us see an example of HTML DOM Video preload property −
Example
<!DOCTYPE html>
<html>
<head>
<title>HTML DOM Video preload</title>
<style>
* {
padding: 2px;
margin:5px;
}
form {
width:70%;
margin: 0 auto;
text-align: center;
}
input[type="button"] {
border-radius: 10px;
}
</style>
</head>
<body>
<form>
<fieldset>
<legend>HTML-DOM-Video-preload</legend>
<video id="demo" width="320" preload=”none” controls><source
src="http://www.tutorialspoint.com/html5/foo.mp4" type="video/mp4"></video><br>
<input type="button" onclick="getTrackDetails()" value="Preload Video">
<div id="divDisplay"></div>
</fieldset>
</form>
<script>
var divDisplay = document.getElementById("divDisplay");
var demo = document.getElementById("demo");
divDisplay.textContent = 'Data Savings mode on. Play video to load it';
function getTrackDetails() {
demo.preload = 'metadata'
divDisplay.textContent = 'Data Savings mode off. Preload enabled';
}
</script>
</body>
</html>
Output
Before clicking ‘Preload Video’ button −
After clicking ‘Preload Video button −
Updated on: 2021-02-18T04:44:59+05:30
171 Views
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