在Mongodb中使用update查询时从数据库中选取内容？

const MongoClient = require('mongodb').MongoClient;
const uri = "your_mongodb_connection_string";
const client = new MongoClient(uri, { useNewUrlParser: true, useUnifiedTopology: true });

async function run() {
    try {
        await client.connect();
        const database = client.db('your_database_name');
        const collection = database.collection('your_collection_name');

        // 定义查询条件和更新操作
        const query = { name: 'John Doe' };
        const update = { $set: { age: 30 } };

        // 使用 findOneAndUpdate 方法
        const result = await collection.findOneAndUpdate(query, update, { returnOriginal: false });

        console.log('Updated Document:', result.value);
    } finally {
        await client.close();
    }
}

run().catch(console.dir);

const result = await collection.findOneAndUpdate(query, update, { returnOriginal: false });