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How to get the location part of an absolute url using Javascript?



Let's discuss this with an example:

A url is having 3 parts which will be separated by a slash "/":

1. protocol
2. Domain / host name
3. location

sample url : http://www.crozoom.com/2013/googlenotes/techiscripts

The above give sample url is splitted to following parts:

protocol : http://
Domain : www.crozoom.com
Location: /2013/googlenotes/techiscripts

Now the question is how to do it using the JS code in simple steps:

1. remove the protocol part from the string
2. find first occurence of "/"
3. Add 1 to the first occurence position that we get in the above step
4. get the substring of the absolute url starting from the position given from the above step till the end of the string

the above steps are implemented in simple JS code snippet


<script>
function getUrl(absolute_url)
{

var pagelink="";
//var myurl=document.URL;

var myurl=absolute_url;

myurl=myurl.replace("http://","");

myurl=myurl.replace("https://","");

var n = myurl.indexOf("/");

if( n > 0 ){
var firstcharloc=n+1;

var pagelink= myurl.slice(firstcharloc,myurl.len);

alert("LOCATION : "+pagelink);
}else
alert("DOMAIN : "+myurl);

}



//Function call
getUrl("http://www.crozoom.com/2013/googlenotes");

//if you want to get the url page url or domain part o the absolute url of your page use like given below
getUrl(document.URL);

</script>

The above function will accept a url and if it is not a domain address , it will return the location part of that url.

Sample use of this script:

Suppose you had changed the address of your blogger blog to a new one, blooger currently doesn't provide an option for automatic redirect to a different blog. To tackle this we can create a clone of site and give the old blog address to it. Then use the edit Html option under Template menu and put the above JS script to redirect the links to it page in new blog address.

Click on the below link for a practical use of above script ( this will be helpful for bloggers having their blogs hosted on blogspot):

Related Posts:

Javascript function get the Query string of a URL or value of each parameter 

How to automatically redirect old blogger blogspot links to new blogger web address

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