How To Add To An Array Of Objects With Node.js And Mongoose?

Hi so I have an an array of object like this: [ { '_id': '5bf43c42a09e1129b8f0cd4c', 'user': '5bc89dec5f6e1103f808671b', 'StudentGrades': [

Solution 1:

UserGrades.findOneAndUpdate({ user: id }, { $push: { StudentGrades: gradeFields }}, { new: true }, function(err, raw) {
    if (err) {
        res.send(err);
    } else {
        res.send(gradeFields);
    }
});