code: function(obj, desc, defaultValue) {
          var arr = desc.split('.');
          try {
              while (arr.length) {
                  obj = _get_simple(obj, arr.shift());
              }
          } catch(ex) {
              /* invalid chain */
              obj = undefined;
          }
          return obj === undefined ? defaultValue : obj;
      }
docs: Based on http://stackoverflow.com/questions/8051975
  Mimic https://lodash.com/docs#get