Adding a parameter to the URL with JavaScript

Question

In a web application that makes use of AJAX calls, I need to submit a request but add a parameter to the end of the URL, for example:

Original URL:

Answer 1

Check out https://github.com/derek-watson/jsUri

Uri and query string manipulation in javascript.

This project incorporates the excellent parseUri regular expression library by Steven Levithan. You can safely parse URLs of all shapes and sizes, however invalid or hideous.