docs: function sortBy(srcArr, field, isDesc) {
        return srcArr.slice().sort(function (row1, row2) {
          var rst1 = get(row1, field), rst2 = get(row2, field);
          if (rst1 !== 0 && !rst1) {
            return isDesc ? 1 : -1;
          } else if (rst2 !== 0 && !rst2) {
            return isDesc ? -1 : 1;
          } else if (rst1 === rst2) {
            return 0;
          } else {
            return (rst1 > rst2) ? (isDesc ? -1 : 1) : (isDesc ? 1 : -1);
          }
        });
      }