How to do multiple populates with Node Mongoose?

To do multiple populates with Node Mongoose, we call populate multiple times.

For instance, we write

OrderModel.find()
  .populate("user")
  .populate("meal")
  .exec((err, results) => {
    // callback
  });

to call populate to populate the user and meal field entries in the result.

We get the results from results in the callback.