docs: function drop(srcArr, isDrop0) {
        var tmpArr = [];
        forEach(srcArr, function (val) {
          var isLen0 = typeOf(val, 'arr', 'obj') && len(val) === 0;
          if ((val && !isLen0) || (!isDrop0 && val === 0)) tmpArr.push(val);
        });
        return tmpArr;
      }