Javascript Reference - HTML DOM Area hash Property

The hash property sets or gets the anchor part of the href attribute value.

Browser Support


`hash`	Yes	Yes	Yes	Yes	Yes

Syntax

Return the hash property:

var v = areaObject.hash

Set the hash property:

areaObject.hash = anchorname;

Property Values

Value	Description
anchorname	Set the anchor part of a URL

Return Value

A String representing the anchor part of a URL, including the hash sign (#).

Example

The following code shows how to get the anchor part of the URL for a specific area in an image-map.


<!DOCTYPE html>
<html>
<body>
<!--   w  w  w.j  av a 2 s.c  o  m-->
<img src="http://java2s.com/style/demo/border.png" width="145" 
     height="126" usemap="#myImageMap">

<map name="myImageMap">
  <area id="myArea" shape="circle" coords="124,58,8" alt="myImage" 
        href="http://example.com#description">
</map>
<p id="demo"></p>
<button onclick="myFunction()">test</button>
<script>
function myFunction() {
    var x = document.getElementById("myArea").hash;
    document.getElementById("demo").innerHTML = x;
}
</script>

</body>
</html>

The code above is rendered as follows:

Example 2

The following code shows how to change the anchor part of a specific area in an image-map.


<!DOCTYPE html>
<html>
<body>
<!-- w ww  . ja v a  2 s . co  m-->
<img src="http://java2s.com/style/demo/border.png" width="145" 
     height="126" usemap="#myImageMap">

<map name="myImageMap">
  <area id="myArea" target="_blank" shape="circle" 
       coords="124,58,8" alt="myImage" href="http://example.com#description">
</map>
<p id="demo"></p>
<button onclick="myFunction()">test</button>

<script>
function myFunction() {
    document.getElementById("myArea").hash = "newhashvalue";
    document.getElementById("demo").innerHTML = "changed";
}
</script>

</body>
</html>

The code above is rendered as follows: