查询Mongoose中的嵌套属性(无点符号)

npm install mongoose

const mongoose = require('mongoose');

mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true });

const userSchema = new mongoose.Schema({
  name: String,
  address: {
    city: String,
    street: String
  }
});

const User = mongoose.model('User', userSchema);

User.find({ 'address.city': 'Beijing' }, (err, users) => {
  if (err) {
    console.error(err);
  } else {
    console.log(users);
  }
});