如何在MongoDB中保存小数高度

// 连接到MongoDB数据库
const MongoClient = require('mongodb').MongoClient;
const uri = 'mongodb://localhost:27017/mydb';
const client = new MongoClient(uri, { useNewUrlParser: true, useUnifiedTopology: true });
client.connect(err => {
  if (err) throw err;
  console.log('Connected successfully to MongoDB');

  // 选择要操作的集合
  const collection = client.db('mydb').collection('heights');

  // 定义一个文档对象，包含小数高度字段
  const document = { height: { $numberDecimal: '1.75' } };

  // 插入文档到集合中
  collection.insertOne(document, (err, result) => {
    if (err) throw err;
    console.log('Document inserted successfully');
    client.close();
  });
});