The location object in JavaScript helps in storing the information of current URL of the window object. It is a child object of the window object.
The location object has the following two features:
The table given below describes the properties of the Location object in JavaScript.
| Property | Description | Example |
|---|---|---|
| href | represents a string specifying the entire URL | http://codescracker.com:80?test.asp?id=1#start |
| protocol | represents a string at the beginning of a URL up to the first colon (:), which specifies the method of access to the URL | http: or https: |
| host | represents a string consisting of the hostname and port strings | codescracker.com:80 |
| hostname | represents the server name, subdomain, and domain name of a URL | codescracker.com |
| port | represents a string specifying the communications port that the server uses | 80 |
| pathname | represents a string portion of a URL specifying how a particular resource can be accessed | test.asp |
| search | represents a string beginning with a question mark that specifies any query information in an HTTP URL | id=1 |
| hash | represents a string beginning with a # specifies an anchor name in an HTTP URL | start |
The following table lists the methods of the Location object in JavaScript.
| Method | Description |
|---|---|
| assign() | Loads a new document in the browser |
| reload() | reloads the current document that is contained in the location.href property |
| replace() | replaces the current document with the specified new one, you can not navigate back to the previous document using the browser's Back button |
Here is an example demonstrates location object in JavaScript:
<!DOCTYPE HTML>
<html>
<head>
<title>JavaScript Location Object</title>
<script type="text/javascript">
function gotoUrl()
{
window.location.href = window.document.loctn.ProtocolFld.
options[window.document.loctn.ProtocolFld.selectedIndex].
text + document.loctn.HostnameFld.value + document.loctn.
PathnameFld.value
}
</script>
</head>
<body>
<h3>Enter URL in following sections</h3>
<form name="loctn" method="post">
<pre>Protocol:
<select name="ProtocolFld" size="1">
<option>http://</option>
<option>file://</option>
<option>javascript:</option>
<option>ftp://</option>
<option>mailto:</option>
</select>
</pre>
<pre>
Hostname:
<input type="text" size="20" maxlength="256" name="HostnameFld" value="codescracker.com">
</pre>
<pre>
Pathname:
<input type="text" size="20" maxlength="100" name="PathnameFld" value="/">
</pre>
<pre>
<input type="button" name="Go" value="Go" onclick="gotoUrl()">
</pre>
</form>
</body>
</html>
Here is the sample output of the above JavaScript location object example code:
Now fill (or edit and fill) the required field as shown in the following snapshot:
After filling the required field as shown in the above figure, click on Go button to go to that url. Here is the sample output after clicking on the Go button:
