gistfile1.js

          if (Object.keys(args).length === 1) {
            for (let key in args) {
              if (args.hasOwnProperty(key)) {
                queryString += `${key}=${args[key]}`;
              }
            }
          } else if (Object.keys(args).length > 1) {
            // else if keys length is larger than one key concat the querystring
            // like so
            for (let key in args) {
              if (args.hasOwnProperty(key)) {
                queryString += `${key}=${args[key]}&`;
              }
            }
            // trim the last ampersand
            queryString = queryString.substring(0, queryString.length - 1);