Skip to main content

Javascript JS function to break a URL into its components or parts


How to break or split a given URL into various parts like Host, protocol, relative path, end file , directories etc?

A simple JS function is given below which uses window.location object to retrive parts of a url into an array.


<script>
function break_uri(){
var arr_uri = new Array();
arr_uri["FULL"] = window.location.href;
arr_uri["PROTOCOL"] = window.location.protocol;
arr_uri["HOST"] = window.location.host;
arr_uri["PATH_NAME"] = window.location.pathname;
var n = window.location.pathname.lastIndexOf('/');
var end_file=window.location.pathname.substr(n);
arr_uri["END_FILE"] = end_file;
return arr_uri;
}

How to use the above function?
var arr = break_uri();;
alert( "Absolute Url : " + arr["FULL"]);
alert( "Protocol : " + arr["PROTOCOL"]);
alert( "Host : " + arr["HOST"]);
alert( "Relative path : " + arr["PATH_NAME"]);
alert( "End File : " + arr["END_FILE"]);
</script>



If you want to break up path name to give the directory levels

var pathArray = window.location.pathname.split( '/' );

to loop through path array:

for ( i = 0; i < pathArray.length; i++ ) {
document.write( pathArray[i]);
}





If you prefer an advanced function , you can try parseUri script by Steven Levithan from stevenlevithan.com

// parseUri 1.2.2
// (c) Steven Levithan <stevenlevithan.com>
// MIT License

function parseUri (str) {
var o = parseUri.options,
m = o.parser[o.strictMode ? "strict" : "loose"].exec(str),
uri = {},
i = 14;

while (i--) uri[o.key[i]] = m[i] || "";

uri[o.q.name] = {};
uri[o.key[12]].replace(o.q.parser, function ($0, $1, $2) {
if ($1) uri[o.q.name][$1] = $2;
});

return uri;
};

parseUri.options = {
strictMode: false,
key: ["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"],
q: {
name: "queryKey",
parser: /(?:^|&)([^&=]*)=?([^&]*)/g
},
parser: {
strict: /^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/,
loose: /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/
}
};



How to use the function?
var obj_url = parseUri("http://usr:pwd@www.test.com:81/dir/dir.2/index.htm?q1=0&&test1&test2=value#top");


How to parse the object?
// parsing the result object

for (var prop in obj_url) {
// important check that this is objects own property
// not from prototype prop inherited
if(obj_url.hasOwnProperty(prop)){
document.write(prop + " = " + obj_url[prop]+"<br/>");
}
}



Result looks like this

query = q1=0&&test1&test2=value
file = index.htm
directory = /dir/dir.2/
path = /dir/dir.2/index.htm
relative = /dir/dir.2/index.htm?q1=0&&test1&test2=value#top
port = 81
host = www.test.com
password = pwd
user = usr
userInfo = usr:pwd
authority = usr:pwd@www.test.com:81
protocol = http
source = http://usr:pwd@www.test.com:81/dir/dir.2/index.htm?q1=0&&test1&test2=value#top
queryKey = [object Object]

queryKey should be looped again for specify query string parameters


You can find the explanation and updated version of parseUri script at:
http://blog.stevenlevithan.com/archives/parseuri
Demo : http://stevenlevithan.com/demo/parseuri/js/

Popular posts from this blog

How to apply for a new ration card and what are the documents required?

List of documents required for new ration card application in Kerala and how to apply


Application for a new ration card should be addressed to Taluk Supply Officer (TSO) / City Rationing Officer (CRO) of applicant's residing area.

Primary document required are Residence certificate, Income certificate and incase the applicant's name is in another ration card then he/she should submit the reduction certificate ontained from previous TSO / CRO as proof for removing his/her name from old Ration card.

You can get the new application from your currently residing Taluk Supply Office.

Payback Points - How to redeem - How to merge multiple payback accounts - Block Payback card - Payback customer care

Joomla and Forum Integration - Integrating Forums to Joomla

Joomla is one of the most popular CMS opensource packages. It is very easier to develop website's using Joomla. You just need to download Joomla package from Joomla's Official website www.joomla.org  and install it on your domain and later adding customizations to templates and feature and Your website is ready :). Now a days most websites provides a forum section for it users for discussing various article topics, gathering opinions etc.



Following are some best know forum opensource packages which can be integrated with Joomla and create a new forum experience for users


Urgent Openings for PHP trainees, Andriod / IOS developers and PHP developers in Kochi Trivandrum Calicut and Bangalore. Please Send Your updated resumes to recruit.vo@gmail.com   Read more »
Member
Search This Blog