HTML ononline Event Attribute - Window Event Attributes

Definition and Usage

The ononline attribute fires when the browser's connection status changes from offline to online.

Tip: The ononline attribute is the opposite of the onoffline attribute.

Browsers Support of HTML ononline Event Attribute

The numbers in the table specify the first browser version that fully supports the event attribute.

Output should be:

Syntax of HTML ononline Event Attribute

<element ononline="script">

Attribute Values of HTML ononline Event Attribute

Value	Description
script	The script to be run on ononline

Technical Details of HTML ononline Event Attribute

Supported HTML tags:	<body>

Example of HTML ononline Event Attribute

Execute a JavaScript when the browser changes from working offine to working online.

index.html

Example: HTML

 <body ononline="myFunction()">

Output should be:

How to add a JavaScript when the browser changes from working offine to working online

Try to disconnect from the internet to toggle between working online and offline

index.html

Example: HTML

<!DOCTYPE html>
<html>
<body ononline="onFunction()" onoffline="offFunction()">

<p>Try to disconnect from the internet to toggle between working online and offline.</p>

<script>
function onFunction() {
  alert ("Your browser is working online.");
}

function offFunction() {
  alert ("Your browser is working offline.");
}
</script>

</body>
</html>

Output should be:

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HTML onload Event Attribute	Window Event Attributes
HTML onoffline Event Attribute	Window Event Attributes
HTML ononline Event Attribute	Window Event Attributes
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HTML onresize Event Attribute	Window Event Attributes
HTML onunload Event Attribute	Window Event Attributes

Single Articles

Browsers Support of HTML ononline Event Attribute	Window Event Attributes
Syntax of HTML ononline Event Attribute	Window Event Attributes
Attribute Values of HTML ononline Event Attribute	Window Event Attributes
Technical Details of HTML ononline Event Attribute	Window Event Attributes
Example of HTML ononline Event Attribute	Window Event Attributes
How to add a JavaScript when the browser changes from working offine to working online	Window Event Attributes

Type:	Develop
Category:	Web Tutorial
Sub Category:	Window Event Attributes
Uploaded by:	Admin

Reffered: https://www.w3schools.com/tags/ev_ononline.asp