The window supports the full-screen interface by using web API. We can activate or deactivate the full-screen mode of the screen. The fullscreen API provides methods to present a specific element in a full-screen mode.
Approach:
- The onclick event will trigger the activate() method which will be for activating the full screen.
- The same will be applied for exiting from the full screen.
<button onclick="activate(document.documentElement);">
Go To Full Screen
</button>
<button onclick="deactivate();">
Leave Full Screen
</button>
Example: The following code uses the requestFullscreen() method. The same is done for exiting full screen by using exitFullscreen() method.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content=
"width=device-width, initial-scale=1.0" />
</head>
<body>
<h1 style="color: green">GeeksForGeeks</h1>
<h2>Window fullscreen property</h2>
<button onclick="activate(document.documentElement);">
Go To Full Screen
</button>
<button onclick="deactivate();">Leave FullScreen</button>
<script>
// Function for full screen activation
function activate(ele) {
if (ele.requestFullscreen) {
ele.requestFullscreen();
}
}
// Function for full screen activation
function deactivate() {
if (document.exitFullscreen) {
document.exitFullscreen();
}
}
</script>
</body>
</html>
Output:
Application:
You can apply it to any element in your website
It will help to execute the full screen.