JS Namespace example

base.js

(function($, window) {
   /**
    * Provides a namespace for BugKick classes
    */
    var _ = window[baseNameSpace] = window[baseNameSpace] || {};
    _.jQuery_URL = 'https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js'

    /**
     *
     * @param namespace {@string}
     */
    _.namespace = function(namespace) {
        var branch = namespace.split('.'),
            path = _;
        if(branch.length > 0 && branch[0] == baseNameSpace) {
            branch.shift();
        }
        for(var i = 0, node; node = branch[i++];) {
            path[node] = path[node] || {};
            path = path[node];
        }
        return path;
    };

    /*    Namespace definitions    */
    
    _.string = _.namespace('string');
    _.url = _.namespace('url');
    _.page = _.namespace('page');

    /****************************/

    /**
     * Concatenates string expressions. This is useful
     * since some browsers are very inefficient when it comes to using plus to
     * concat strings. Be careful when using null and undefined here since
     * these will not be included in the result. If you need to represent these
     * be sure to cast the argument to a String first.
     * For example:
     * <pre>buildString('a', 'b', 'c', 'd') -> 'abcd'
     * buildString(null, undefined) -> ''
     * </pre>
     * @param {...*} var_args A list of strings to concatenate. If not a string,
     *     it will be casted to one.
     * @return {string} The concatenation of {@code var_args}.
     */
    _.string.buildString = function(var_args) {
        return Array.prototype.join.call(arguments, '');
    };
})(jQuery, window);