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Getting query string from re written URL

I have url "SampleProject/profile/aA12". How can I get the value of the id from my rewritten URL using javascript? I want to get the "aA12" value.
Im using htaccess rewrite to rewrite my URL. Im new in rewritting url's. Any help will be appreciated. More powers and thank you.

You can use regex.
Try
'SampleProject/profile/aA12'.match(/\SampleProject\/profile\/(\w+)/)
'SampleProject/profile/aA12/xxx'.match(/\SampleProject\/profile\/(\w+)/)
'aA12' will be matched in both cases.

There are going to be quite a few ways to achieve your goal with JavaScript. A simple solution could be something like this:
let myURL = "SampleProject/profile/aA12";
let result = myURL.split('/').pop();
// returns "aA12"
The .split('/') method is dividing your string up into an array using the / character, and .pop() is simply returning the last element of that array.
Hope this helps! If you were looking for more advanced matching, i.e. if you wanted to ignore a potential query string on the end of the URL parameter, you could use regular expressions.

Their is a many way that you can use to achieve the desired method i made you a code pen in this link
var url = "SampleProject/profile/aA12";
let res = url.split('/').pop();
console.log(res)
https://codepen.io/anon/pen/KQxNja

how do I create a page name from the location.pathname url?

I have the following url :
http://localhost/get/this/url/in/a-nice-format.html
var pagename= location.pathname.split('/').join(':');
gives me
:get:this:url:in:a-nice-format.html
How do I get rid of the first ":"?
Thanks.

pagename = location.pathname.split('/').join(':').substr(1);

Hi you can use substrings method. Simply do this....
var pageName2 = pageName.substring(1); I hope this helps.

I'm not able to comment yet but waned to help anyway. And there's probably an answer somewhere else...
Anyway, try using slice() and passing in a 'begin' argument of 1 to remove the first ':'.
Like this: var pagename= location.pathname.split('/').join(':').slice(1);

Use Regex in Javascript to get the filename in a URL

I'm using JavaScript to try and get the filename from the URL.
I can get it using this:
var fn=window.location.href.match(/([^/])+/g);
alert(fn[fn.length-1]); // get the last element of the array
but is there an easier way to get it (e.g., without having to use fn[fn.length-1]
Thanks!!

Add a $ at the end so you only get the last part:
window.location.href.match(/[^/]+$/g);

Personally, I try to use simple string manipulation for easy tasks like this. It makes for more readable code (for a person not very familiar with RegEx).
var url = window.location.pathname;
var filename = url.substring(url.lastIndexOf('/')+1);
Or simply:
var filename = window.location.pathname.substring(window.location.pathname.lastIndexOf('/')+1);
Additional Information
Not that it matters for something so trivial, but this method is also more performant than RegEx: http://jsperf.com/get-file-name

How about:
window.location.href.match(/\/([^/]+)$/)[1];

you can use .pop() to get the last element of an array;
alert(fn.pop());

There is a jQuery plugin that makes it easy to parse URLs and provide access to their different parts. One of the things it does is return the filename. Here's the plugin on GitHub:
https://github.com/allmarkedup/jQuery-URL-Parser
I would recommend using that and avoid reinventing the wheel. Regular expressions is an area of programming where this is particularly applicable.

I recommend to also remove any '#' or '?' string, so my answer is:
var fn = window.location.href.split('/').pop().replace(/[\#\?].*$/,'');
alert(fn);
split('/').pop() removes the path
replace(/[\#\?].*$/,'') replace '#' or '?' until the end $ by empty string

Javascript & HTML Getting the Current URL

Can anyone help me. I don't use Client-side Javascript often with HTML.
I would like to grab the current url (but only a specific directory) and place the results between a link.
So if the url is /fare/pass/index.html
I want the HTML to be pass

This is a quick and dirty way to do that:
//splits the document.location.href property into an array
var loc_array=document.location.href.split('/');
//have firebug? try a console.log(loc_array);
//this selects the next-to-last member of the array.
var directory=loc[loc.length-2]

url = window.location.href // Not particularly necessary, but may help your readability
url.match('/fare/(.*)/index.html')[1] // would return "pass"

There may be an easier answer, but the simplest thing I can think of is just to get the current URL with window.location and use some type of parsing to get which directory you are looking for.
Then, you can dynamically append the HTML to your page.

This may get you started:
var linkElement = document.getElementById("whatever");
linkElement.innerHTML = document.URL.replace(/^(?:https?:\/\/.*?)?\/.*?\/(.*?)\/.*?$/i,"$1");

JavaScript To Strip Page For URL

We have a javascript function we use to track page stats internally. However, the URLs it reports many times include the page numbers for search results pages which we would rather not be reported. The pages that are reports are of the form:
http://www.test.com/directory1/2
http://www.test.com/directory1/subdirectory1/15
http://www.test.com/directory3/1113
Instead we'd like the above reported as:
http://www.test.com/directory1
http://www.test.com/directory1/subdirectory1
http://www.test.com/directory3
Please note that the numbered 'directory' and 'subdirectory' names above are just for example purposes and that the actual subdirectory names are all different, don't necessarily include numbers at the end of the directory name, and can be many levels deep.
Currently our JavaScript function produces these URLs using the code:
var page = location.hostname+document.location.pathname;
I believe we need to use the JavaScript replace function in combination with some regex but I'm at a complete loss as to what that would look like. Any help would be much appreciated!
Thanks in advance!

I think you want this:
var page = location.href.substring(0,location.href.lastIndexOf("/"));

You can use a regex for this:
document.location.pathname.replace(/\/\d+$/, "");
Unlike substring and lastIndexOf solutions, this will strip off the end of the path if it consists of digits only.

What you can do is find the last index of "/" and then use the substring function.

Not sure you need a regex if you're just pulling off the last slash + content.
http://www.w3schools.com/jsref/jsref_lastIndexOf.asp
I'd probably use that to search for the last "/" character, then do a substring from the start of the string to that index.

How about this:
var page = location.split("/");
page.pop();
page = page.join("/");

I would think you need to use the .htaccess with rewrite rules to change the look of the url, however I am still looking to see if this is available to javascript. Will repost when I find out more
EDIT*
the lastIndexOf would only give you the position, therefor you would still need to replace. ex:
var temp = page.substring(page.lastIndexOf("/"),page.length-1);
page = page.replace(temp, "");
unfortunately I'm not that advanced in my coding so there is probably more efficient coding in the other answers. Sorry for any inconveniences with my initial answer.