nodets with ts：模块在本地声明组件，但未导出

Question

在我的nodeJS应用中，我有一个models和seeders文件夹，我这样创建了一个address.model.ts模式：

---

export {};
const mongoose = require('mongoose');

const addressSchema = new mongoose.Schema({
  street: {
    type: String,
    required: true,
  },
  number: {
    type: String,
    required: true,
  },
  city: {
    type: String,
    required: true,
  },
  codePostal: { type: mongoose.Schema.Types.ObjectId, ref: 'codePostal'  },
  country: {
    type: String,
    required: true,
  },
  longitude: {
    type: Number,
    required: false,
  },
  latitude: {
    type: Number,
    required: false,
  }
});

const ALLOWED_FIELDS = ['id', 'street', 'number','city', 'codePostal', 'country'];


/**
 * @typedef Address
 */
const Address = mongoose.model('Address', addressSchema);
Address.ALLOWED_FIELDS = ALLOWED_FIELDS;
module.exports = Address;

和addresss.ts这样的种子：

import faker from 'faker'
import {
  Address
} from '../src/api/models/address.model'

export const seedAdresses = async () => {
  try {
    const quantity = 10
    const adresses = []

    for (let i = 0; i < quantity; i++) {
      adresses.push(
        new Address({
          street   : faker.address.streetName(),
          number   : faker.address.streetAddress(),
          city     : faker.address.city(),
          country  : faker.address.country(),
          longitude: faker.address.longitude(),
          latitude : faker.address.latitude(),

        })
      )
    }

  } catch (err) {
    console.log(err);
  }
}

seedAdresses()

导入地址时出现错误：

模块'“ ../src/api/models/address.model”'在本地声明“地址”，但不会导出。 我不明白为什么虽然module.exports = Address却没有导出它；存在于我的模式中！

Answer 1

问题是，您将CommonJS导出与ES6导入/导出一起使用，请在address.model.ts中使用export { Address };而不是export {};。

您还应该考虑使用import { Schema, model } from "mongoose"与ES6保持一致。