get the single parameter in URL in javascript

Question

what i need to get single "parameter" from a "full url" in Javascript like the example below :

example :

http://cms.example.com ----> cms

What i have done till now and tried windows.location.href.split('.');

Javascript code

var y = window.location.href.split('.');
var z = y[0];
console.log(z); //output http://cms

here output is not coming what i needed can anyone help?

thanks in advance.

• Omasu Plus: read on this w3schools.com/jsref/obj_location.asp
• Aman: it wont work... i have tried this is something different
• VirginieLGB: If your own solution almost suits you, why not doing substring to your result? Maybe something like if( z[ 4 ] == 's' ) z = z.substring(0, 7); else z = z.substring(0, 6); ( the test is in case you have https instead of http )
• Kumar Rakesh: window.location.href.split('.')[0].split('//')[1] this will give final result .. Are you try it.. @adasdasd

Answer 1

Use location.host as it doesn't have the protocol. It's worth to mention that this method is not reliable. If you don't have www or a subodmain, the root domain will be returned (like in the snippet below)

var y = window.location.host.split('.');
var z = y[0];
console.log(y);
console.log(z); //output http://cms

Answer 2

Try this:

location.host.split('.')[0]

See MDN

Answer 3

Using split you could try this one:

s.split("//")[1].split(".")[0]

where s is your string. In the first split, we split the string on // and we take an array of two items, the second item is the domain name. Then splitting the domain name on . you get an array of it's parts and the first item is that you are looking for.

var s = "http://cms.example.com";
var r = s.split("//")[1].split(".")[0];
console.log(r);

Answer 4

Try it

window.location.href.split('.')[0].split('//')[1];

• ppeterka: This does not provide an answer to the question. To critique or request clarification from an author, leave a comment below their post. - From Review
• Kumar Rakesh: Its Working fine @ppeterka
• ppeterka: I didn't question that. Please read the help on how to post answers. Without any explanation, this only qualifies as a comment.
• Kumar Rakesh: Ok thanks... @ppeterka .. But i will give explanation if questioner don't know about jquery function like split ,window.location.href etc..