# HTML onhashchange Event Attribute

HTML Event Attributes

## Example

Execute a JavaScript when the anchor part has been changed:

<body onhashchange="myFunction()">
Try it yourself »

## Definition and Usage

The onhashchange attribute fires when there has been changes to the anchor part (begins with a '#' symbol) of the current URL.

An example of what an anchor part actually is: Assume that the current URL is
http://www.example.com/test.htm#part2 - The anchor part of this URL would be #part2.

To invoke this event, you can:

- Change the anchor part by setting the location.hash or location.href property of the Location Object
- Navigate to the current page with a different bookmark (Use the "back" or "forward" buttons)
- Click on a link to a bookmark anchor

## Browser Support

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

Event Attribute |  |  |  |  |
--- | --- | --- | --- | --- | ---
onhashchange | 5.0 | 8.0 | 3.6 | 5.0 | 10.6

## Differences Between HTML 4.01 and HTML5

The onhashchange attribute is new in HTML5.

## Syntax

<element onhashchange="script">

## Attribute Values

Value | Description
--- | ---
script | The script to be run on onhashchange

## Technical Details

Supported HTML tags: | <body>

## Related Pages

HTML DOM reference: onhashchange event

HTML Event Attributes

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