如何在没有bluebird的情况下console.log简化的mongoose查询

const mongoose = require('mongoose');

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

const userSchema = new mongoose.Schema({
  name: String,
  age: Number,
  email: String
});

const User = mongoose.model('User', userSchema);

async function getUserById(userId) {
  try {
    const user = await User.findById(userId);
    console.log('User:', user);
  } catch (error) {
    console.error('Failed to get user:', error);
  }
}

getUserById('1234567890');