Execute a JavaScript when a user unloads the document:
The onunload event occurs once a page has unloaded (or the browser window has been closed).
onunload occurs when the user navigates away from the page (by clicking on a link, submitting a form, closing the browser window, etc.).
Note: The onunload event is also triggered when a user reloads the page (and the onload event).
Event Attribute | |||||
---|---|---|---|---|---|
onunload | Yes | Yes | Yes | Yes | Yes |
Note: Due to different browser settings, this event may not always work as expected.
In HTML:
In JavaScript:
In JavaScript, using the addEventListener() method:
Note: The addEventListener() method is not supported in Internet Explorer 8 and earlier versions.
Bubbles: | No |
---|---|
Cancelable: | No |
Event type: | UIEvent if generated from a user interface, Event otherwise. |
Supported HTML tags: | <body> |
DOM Version: | Level 2 Events |