// This will create another document if it doesn't exist findByIdAndUpdate(_id, { something: 'updated' }, { upsert: true });
User.update({"created": false}, {"$set":{"created": true}}, {"multi": true}, (err, writeResult) => {});
var conditions = { name: 'bourne' } , update = { $inc: { visits: 1 }} Model.update(conditions, update, { multi: true }).then(updatedRows=>{ }).catch(err=>{ console.log(err) })