onoffline event

DOM-händelser Event-objekt

Definition and usage

The onoffline event occurs when the browser starts to work offline.

Tip:onoffline event with ononline-händelse Conversely.

Tip:You can also use navigator.onLine property to determine whether the browser is in online or offline mode.

Example

Execute JavaScript when the browser starts to work offline:

<body onoffline="myFunction()">

Try it yourself

Syntax

In HTML:

<element onoffline="myScript">

Try it yourself

In JavaScript:

object.onoffline = function(){myScript};

Try it yourself

In JavaScript, use the addEventListener() method:

object.addEventListener("offline", myScript);

Try it yourself

Note:Internet Explorer 8 or earlier versions do not support addEventListener() method.

Technical details

Bubbling: Ej stödd
Cancellable: Ej stödd
Event type: Event
Supported HTML tags: <body>
DOM version: Level 3 Events

Webbläsarstöd

Talen i tabellen anger den första webbläsareversion som fullständigt stöder denna händelse.

Händelser Chrome IE Firefox Safari Opera
onoffline Ej stödd. Föråldrad från IE11
8.0		 3.0 Ej stödd Ej stödd
DOM-händelser Event-objekt