toArray()函数在mongodb中做什么？

const MongoClient = require('mongodb').MongoClient;

async function getData() {
  const uri = 'mongodb://localhost:27017';
  const client = new MongoClient(uri);

  try {
    await client.connect();
    const database = client.db('mydb');
    const collection = database.collection('mycollection');

    const query = { age: { $gt: 18 } };
    const options = { projection: { name: 1, age: 1 }, limit: 10 };

    const result = await collection.find(query, options).toArray();
    console.log(result);
  } finally {
    await client.close();
  }
}

getData();