如何在普通 javascript 文件或简单节点项目中从 React 外部的 normalizr 节点包导入规范化、模式函数

Question

我一定遗漏了一些关于将外部包函数导入我的纯 javascript 项目/文件的非常基本的内容。

我有一个简单的项目，我从 npm init 开始，然后安装了 normalizr 包。我必须运行下面这种规范化代码，当我运行 React 组件中的下面代码时，这是完美的工作。

但是导入语句本身在我的简单明文中失败了 JavaScript file/project.

const normalize = "./node_modules/normalizr/dist/normalizr.js";
const schema = "./node_modules/normalizr/dist/normalizr.js"; 

const articlesData = {
    articles: [
        {
            id: 1,
            title: "Dagon",
            tags: [{ id: 1, name: "old ones" }, { id: 2, name: "short story" }]
        },
        {
            id: 2,
            title: "Azathoth",
            tags: [{ id: 1, name: "old ones" }, { id: 3, name: "novel" }]
        },
        {
            id: 3,
            title: "At the Mountains of Madness",
            tags: [{ id: 4, name: "insanity" }, { id: 3, name: "novel" }]
        }
    ]
};

const tag = new schema.Entity("tags", {});
const article = new schema.Entity("articles", {
    tags: [tag]
});

// We assume articlesData is the (parsed) JSON object that we got
const normalizedData = normalize(articlesData, { articles: [article] });

console.log(articlesData);

我还尝试导入下面的 2 个函数（规范化、模式），但没有用

 const normalize = require("normalizr");
 const schema = require("normalizr");

并且还尝试了以下方法运行文件，同样失败

node --experimental-modules ./file.js

经历了这个official page，但对我帮助不大。

下面是我的package.json文件

{
  "name": "test-js-codes-repo",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "babel": {
    "presets": [
      "@babel/preset-env"
    ]
  },
  "license": "ISC",
  "dependencies": {
    "@babel/cli": "^7.8.4",
    "@babel/node": "^7.8.7",
    "@babel/preset-env": "^7.8.7",
    "axios": "^0.19.2",
    "babel-core": "^6.26.3",
    "babel-eslint": "^10.1.0",
    "babel-loader": "^8.0.6",
    "babel-plugin-dynamic-import-webpack": "^1.1.0",
    "babel-plugin-transform-runtime": "^6.23.0",
    "babel-preset-env": "^1.7.0",
    "babel-preset-es2015": "^6.24.1",
    "babel-register": "^6.26.0",
    "es6-promise": "^4.2.5",
    "esm": "^3.2.25",
    "https": "^1.0.0",
    "isomorphic-fetch": "^2.2.1",
    "lodash.flatten": "^4.4.0",
    "lodash.map": "^4.6.0",
    "lodash.omit": "^4.5.0",
    "lodash.orderby": "^4.6.0",
    "lodash.partialright": "^4.2.1",
    "lodash.pick": "^4.4.0",
    "lodash.sortby": "^4.7.0",
    "moment": "^2.22.2",
    "normalizr": "^3.6.0",
    "request": "^2.88.0"
  },
  "description": "",
  "devDependencies": {
    "babel-plugin-dynamic-import-node": "^2.3.0"
  }
}

Answer 1

像在 Node.js require docs

中导入任何其他模块一样导入它

const { normalize, schema } = require('normalizr')

如何在普通 javascript 文件或简单节点项目中从 React 外部的 normalizr 节点包导入规范化、模式函数

How to import normalize, schema function from normalizr node package outside of React in a plain javascript file or simple node project

import

module

node.js

ecmascript-6

normalizr