Javascript Reference - HTML DOM Area port Property

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

Browser Support


`port`	Yes	Yes	Yes	Yes	Yes

Syntax

Return the port property:

var v = areaObject.port

Set the port property:

areaObject.port = port;

Property Values

Value	Description
port	Set the port number for URL

Return Value

A String representing the port number of the URL.

Example

The following code shows how to get the port number of the URL for a specific area in an image-map:


<!DOCTYPE html>
<html>
<body>
<!-- ww w  . 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" shape="circle" coords="124,58,8" alt="myImage" href="http://example.com">
</map>

<p id="demo"></p>

<button onclick="myFunction()">test</button>

<script>
function myFunction() {
    var x = document.getElementById("myArea").port;
    document.getElementById("demo").innerHTML = "Port: " + x;
}
</script>

</body>
</html>

The code above is rendered as follows:

Example 2

The following code shows how to change the port number of the URL for a specific area in an image-map.


<!DOCTYPE html>
<html>
<body>
<!--  w w  w. j a v  a2  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" target="_blank" shape="circle" 
      coords="124,58,8" alt="myImage" href="http://www.example.com:80/test.htm">
</map>
<p id="demo"></p>

<button onclick="myFunction()">test</button>

<script>
function myFunction() {
    document.getElementById("myArea").port = "1234";
    document.getElementById("demo").innerHTML = "changed";
}
</script>

</body>
</html>

The code above is rendered as follows: