Area hostProperty

Area 对象参考手册Area Object

Definition and Usage

The host property can set or return the href attribute value'shostname:portpart.

Syntax

areaObject.host=hostname:port


Browser Support

Internet ExplorerFirefoxOperaGoogle ChromeSafari

All major browsers support the host property


Tips and Notes

Note:If the port part is not specified in the URL, or the port is 80 (the default value), some browsers will not display the port part.


Example

Example

The following example can return the hostname and port of the "Venus" area:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Rookie Tutorial (example.com)</title>
</head>
<body>

<img src="planets.gif.html" width="145" height="126" usemap="#planetmap">
<map name="planetmap">
<area id="venus" shape="circle" coords="124,58,8" alt="Venus" href="venus.htm.html">
</map>
<p>Venus area's hostname:port:
<script>
document.write(document.getElementById('venus').host);
</script>
</p>
<p><b>Note:</b> If the port part of the URL is not specified, or it is 80 (the default), some browsers will not display the port part.</p>

</body>
</html>

The output of the above example:

Venus area's hostname:port: www.example.com

Try it Yourself »


Area 对象参考手册Area Object Other Extensions