Voila!

At many times we need to extract the root of a multi-level path URL. So here is the code to do that. /* @author Abhishek Kumar @usage getBaseUrl(n); where n = number of ../ @example For URL → http://localhost/workshop/showcase/shell/data/AKI/app/index.html Result of getBaseUrl() → http://localhost/workshop/showcase/shell/data/AKI/app/ getBaseUrl(3) → http://localhost/workshop/showcase/shell/ */ function getBaseUrl(levelback) { var basePath = window.location.pathname; basePath = basePath.substring(0, basePath.lastIndexOf('/')); var list = basePath.split('/'); for (var i = 0; i < levelback && list.length > 0; i++) { list.pop(); } return window.location.protocol + '//' + window.location.host + list.join('/') + '/'; }