小编Tom*_*awn的帖子

我正在关注来自 mongoDB js API 的代码示例，非常简单的代码示例：

const getAddressFromDB = async () => {
  const MongoClient = require('mongodb').MongoClient;
  const assert = require('assert');

  let res = []
  let num = 0

  // Connection URL
  const url = 'mongodb://localhost:27017';

  // Database Name
  const dbName = 'addr';

  // Use connect method to connect to the server
  MongoClient.connect(url, function(err, client) {
    assert.equal(null, err);
    console.log("Connected correctly to db");

    const db = client.db(dbName);

    findDocuments(db, function(doc) {
      client.close();
      console.log(doc);
      //return doc
      res = doc 
      num = 1
    });
  }); …