HTML | DOM fullscreenElement Property

The fullscreenElement property in HTML is used to return the element that is currently in fullscreen. This property may require specific prefixes to work with different browsers.

Syntax:

document.fullscreenElement

Return Value: Returns the element that is currently in full-screen mode, or null if full-screen mode is not available.

Example:

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<!DOCTYPE html>
<html>
  
<head>
    <title>fullscreenElement method</title>
</head>
  
<body>
    <h1 style="color: green">GeeksForGeeks</h1>
    <p><b>fullscreenElement method</b></p>
    <p>The current fullscreen element will 
       appear in the console after 5 seconds.</p>
  
    <img id="image" src=
"https://media.geeksforgeeks.org/wp-content/uploads/sample_image.png" />
    <br>
    <button onclick="goFullScreen();">Go fullscreen</button>
    <script>
  
        /* Log the element currently in fullscreen */
        function checkFullscreenElement() {
            console.log(
                /* Standard syntax */
                document.fullscreenElement ||
  
                /* Chrome, Safari and Opera syntax */
                document.webkitFullscreenElement ||
  
                /* Firefox syntax */
                document.mozFullScreenElement ||
  
                /* IE/Edge syntax */
                document.msFullscreenElement
            )
        }
  
        /* Call this function after 5 seconds,
        as we cannot click any button to execute 
        this function while in fullscreen */
        setTimeout(checkFullscreenElement, 5000);
  
        /* Go fullscreen */
        function goFullScreen() {
            if (
                /* Standard syntax */
                document.fullscreenEnabled ||
  
                /* Chrome, Safari and Opera syntax */
                document.webkitFullscreenEnabled ||
  
                /* Firefox syntax */
                document.mozFullScreenEnabled ||
  
                /* IE/Edge syntax */
                document.msFullscreenEnabled
            ) {
                elem = document.querySelector('#image');
  
                /* Try to go Fullscreen */
                elem.requestFullscreen();
            } else {
                console.log('Fullscreen is not available currently.')
            }
        }
    </script>
</body>
  
</html>

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Output:


base-output


Console Output: If the full-screen mode is activated by clicking the button.


fullscreen-elem


Console Output: If the full-screen mode is not activated.


fullscreen-null


Supported Browsers: The browser supported by fullscreenElement property are listed below:


    

  • Google Chrome 45.0
    • 

  • Internet Explorer 11.0 
    • 

  • Firefox 47.0 
    • 

  • Opera 15.0
    • 

  • Safari 5.1 
    • 




          
          
          
          

            

    

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