THE WORLD'S LARGEST WEB DEVELOPER SITE

HTML onunload Event Attribute

HTML Event Attributes HTML Event Attributes

Example

Execute a JavaScript when a user unloads the document:

<body onunload="myFunction()">

Try it yourself »

Definition and Usage

The onunload attribute fires 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: If you reload a page, you will also trigger the onunload event (and the onload event).


Browser Support

Event
onunload Yes Yes Yes Yes Yes

Note: Due to different browser settings, this event may not always work as expected.


Differences Between HTML 4.01 and HTML5

None.


Syntax

<element onunload="script">

Attribute Values

Value Description
script The script to be run on onunload

HTML Event Attributes HTML Event Attributes

COLOR PICKER

colorpicker

SHARE THIS PAGE






Search w3schools.com:

Translate w3schools.com: