code: function paramsFromRegexPath(paramsObj) {
          var paramNames = Object.keys(paramsObj);
          var params = paramNames.reduce(function(params, paramName) {
              if ((/^\d+$/).test(paramName)) {
                  params.push(paramsObj[paramName]);
              }
              return params;
          }, []);
          return params;
      }
docs: Given a certain paramsObj resulting from a regex path, create an array of parameters. Note that in this instance `req.params` is an object with numerical properties for the regex matches.