Question

//D:/workspace/www/hello-world/src/data/articles.js   

const articles = [
    {"title": "title1","content": "content1"},
    {"title": "title2","content": "content2"},
    {"title": "title3","content": "content3"}]

//D:/workspace/www/nodejs_scripts/test.js     

import articles from '../hello-world/src/data/articles.js';
console.log(articles);

//D:/workspace/www/nodejs_scripts/package.json    

{
  "type": "module"
}

运行test.js

D:\workspace\www\nodejs_scripts
λ node -v
v12.11.1

D:\workspace\www\nodejs_scripts
λ node --experimental-modules test.js
(node:7756) ExperimentalWarning: The ESM module loader is experimental.
{}

问题：
如何获取articles.js的数据？

Answer 1

要首先导入某些内容，您需要将其导出。我希望下面的代码能解决您的问题。

const articles = [
    {"title": "title1","content": "content1"},
    {"title": "title2","content": "content2"},
    {"title": "title3","content": "content3"}]

module.exports = {
    articles
}

导出文章常量后，其他文件中的代码应该可以正常工作。

Answer 2

您应该在NodeJS环境中使用require而不是import。另外，您还需要export数组：

//D:/workspace/www/hello-world/src/data/articles.js   

const articles = [
    {"title": "title1","content": "content1"},
    {"title": "title2","content": "content2"},
    {"title": "title3","content": "content3"}]

module.exports = {
    articles
}

然后使用require：

//D:/workspace/www/nodejs_scripts/test.js     

const articles = require('../hello-world/src/data/articles.js');
console.log(articles);

Answer 3

您需要将商品变量导出为默认导出

//D:/workspace/www/hello-world/src/data/articles.js   

const articles = [
    {"title": "title1","content": "content1"},
    {"title": "title2","content": "content2"},
    {"title": "title3","content": "content3"}]

export default articles

您可以详细了解https://developer.mozilla.org/id/docs/Web/JavaScript/Reference/Statements/export

导入和导出node.js

3 个答案: