JavaScript element.requestFullscreen() Method
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JavaScript element.requestFullscreen() Method
The element.requestFullscreen()
method opens an element in fullscreen mode.
Note: It's not guaranteed that the element will be put into full screen mode. You can determine whether or not your attempt to switch to full-screen mode is successful by using the Promise returned by requestFullscreen().
Example
HTML Online Editor
<!DOCTYPE html>
<html>
<body>
<video controls>
<source src="/hawk.mp4" type="video/mp4">
</video>
<p>Click on the button to request fullscreen of the video.</p>
<button onclick="myFunction()">Click Me</button>
<script>
var elem = document.getElementsByTagName("video")[0];
function myFunction(){
elem.requestFullscreen().catch(err => {
alert("Unable to display in fullscreen");
});
}
</script>
</body>
</html>
Syntax
element.requestFullscreen()
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