Function cb

test/client/submit.js:632–636

(err)

          if (err) return done(err);
          var count = 0;
          var cb = function(err) {
            count++;
            if (err) return done(err);
            if (count > 1) done();
          };
          doc.submitOp({p: ['age'], na: 2}, cb);
          doc2.submitOp({p: ['age'], na: 7}, cb);
        });