The HTML ononline event attribute is triggered when the browser starts to work online.
Syntax
Following is the syntax −
<tagname ononline=”script”></tagname>
Let us see an example of HTML ononline event Attribute−
Example
<!DOCTYPE html> <html> <style> body { color: #000; height: 100vh; background: linear-gradient(62deg, #FBAB7E 0%, #F7CE68 100%) no-repeat; text-align: center; } .show { font-size: 1.2rem; color: #fff; } </style> <body ononline="onlineFn()" onoffline="offlineFn()"> <h1>HTML onoffline/ononline Event Attribute Demo</h1> <p style="color:#db133a;">Try to disable/enable your network.</p> <div class="show"></div> <script> function onlineFn() { alert("Hey! You are online"); } function offlineFn() { alert("Hey! You are offline"); } </script> </body> </html>
Output
Now try to enable/disable your network to observe how onoffline/ononline event attribute works−