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HTML ononline Event Attributes
The ononlineevent attribute is a critical feature in web development that detects when a user's device regains internet connectivity. It is part of the HTML5 standard and works alongside the onoffline event to enable developers to create connectivity-aware web applications that can adapt dynamically to the user's online and offline status.
Defining HTML ononline Event Attributes
The ononlineevent is triggered on the window
object when the browser detects a transition from an offline to an online state. This event is particularly useful for restoring online functionalities, reloading resources, or notifying users when the connection has been reestablished.
Window Event Attributes
Attributes | Description |
---|---|
onafterprint | Fires after the document has started printing or the print dialog box has been closed. |
onbeforeprint | Fires before the document is about to be printed. |
onbeforeunload | Fires when the document is about to be unloaded. |
onerror | Fires when an error occurs during loading of an external file (e.g., images or scripts). |
onhashchange | Fires when the anchor part of the URL has changed. |
onload | Fires when the page has finished loading. |
onmessage | Fires when a message is received through an event source (e.g., WebSocket or iframe). |
onoffline | Fires when the browser starts working offline. |
ononline | Fires when the browser starts working online. |
onpagehide | Fires when the user navigates away from a webpage. |
onpageshow | Fires when the user navigates to a webpage. |
onpopstate | Fires when the active history entry changes (e.g., when the user clicks the back or forward button). |
onresize | Fires when the browser window is resized. |
onstorage | Fires when a Web Storage area is updated (e.g., localStorage or sessionStorage). |
onunload | Fires once a page is unloaded (or the browser window is closed). |
HTML Attributes | Global Attributes | Event Attributes |
---|---|---|
To view the full list | To view the full list | To view the full list |
elements | |||||
---|---|---|---|---|---|
ononline | 4 | 9 | 9 | 4 | 15 |
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