如何使用nodejs拉取或删除mongoose中另一个数组中的数组元素？

const mongoose = require('mongoose');

mongoose.connect('mongodb://localhost:27017/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => {
    console.log('Connected to MongoDB');
  })
  .catch((error) => {
    console.error('Error connecting to MongoDB', error);
  });

const mySchema = new mongoose.Schema({
  name: String,
  array1: [String],
  array2: [String]
});

const MyModel = mongoose.model('MyModel', mySchema);

MyModel.findOne({ name: 'example' }, (error, doc) => {
  if (error) {
    console.error('Error finding document', error);
    return;
  }

  // 拉取数组元素
  const pulledElement = doc.array2.pull('elementToRemove');
  console.log('Pulled element:', pulledElement);

  // 保存更新后的文档
  doc.save((error) => {
    if (error) {
      console.error('Error saving document', error);
    } else {
      console.log('Document saved successfully');
    }
  });
});

MyModel.findOne({ name: 'example' }, (error, doc) => {
  if (error) {
    console.error('Error finding document', error);
    return;
  }

  // 删除数组元素
  doc.array2 = doc.array2.filter((element) => element !== 'elementToRemove');
  console.log('Updated array:', doc.array2);

  // 保存更新后的文档
  doc.save((error) => {
    if (error) {
      console.error('Error saving document', error);
    } else {
      console.log('Document saved successfully');
    }
  });
});