docs: function jsonInData(data, keypath, delimiter = '.') {
      let r,
          tmp = data;
      keypath = keypath || [];
      typeof keypath == 'string' && (keypath = keypath.split(delimiter));
  
      if (!(data && keypath.length)) return r;
      keypath.map(val => {
          r = 0;
          if (val && tmp && val in tmp) {
              tmp = tmp[val];
              r = 1;
          }
      });
  
      return !!r;
  }