ononline HTML Attribute

The "ononline" attribute in HTML is an event attribute that can be added to an element, that when triggered, runs a script when the browser's network status changes to "online". The attribute value is a string containing the JavaScript code that should be executed when the event is fired.

For example, in the following code snippet, the ononline attribute is used to alert the user when their device is back online:


<body ononline="alert('You are back online')">

The ononline attribute is useful for detecting when the user's device regains internet connectivity and for providing a message to the user if the device is back online. It can be used to implement strategies that rely on internet connectivity, such as syncing data with a remote server or making API calls.

It's worth noting that the ononline attribute is supported by most modern browsers, but not all, so it's important to check the browser compatibility before using it in your website.

In summary, the "ononline" attribute in HTML is an event attribute that can be added to an element, that when triggered, runs a script when the browser's network status changes to "online". It's useful for detecting when the user's device regains internet connectivity and for providing a message to the user if the device is back online. It can be used to implement strategies that rely on internet connectivity, such as syncing data with a remote server or making API calls. It is supported by most modern browsers, but not all, so it's important to check the browser compatibility before using it in your website.