mongoose:如何插入数组字段

const mongoose = require('mongoose');

const userSchema = new mongoose.Schema({
  name: String,
  age: Number,
  hobbies: [String]
});

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

const newUser = new User({
  name: 'John',
  age: 25,
  hobbies: ['reading', 'gaming']
});

newUser.hobbies.push('coding');

newUser.save((err, savedUser) => {
  if (err) {
    console.error(err);
  } else {
    console.log(savedUser);
  }
});