HTML onhashchange Event Attribute

HTML onhashchange Event Attribute

❮ HTML Event Attributes


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 - 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.


<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