中文代码演示——创建 Node.js 模块

参考: Creating Node.js modules

创建 package.json 文件

因为打算创建公开模块, 因此按unscoped的建法。与 maven 不同，包名貌似不允许中文字符:

$ npm init
This utility will walk you through creating a package.json file.
It only covers the most common items, and tries to guess sensible defaults.

See `npm help json` for definitive documentation on these fields
and exactly what they do.

Use `npm install ` afterwards to install a package and
save it as a dependency in the package.json file.

Press ^C at any time to quit.
package name: (npm-module-demo) npm模块演示
Sorry, name can only contain URL-friendly characters.
package name: (npm-module-demo) npm-module-demo-cn
version: (1.0.0) 
description: 
entry point: (index.js) 入口.js
test command: 
git repository: 
keywords: 
author: 
license: (ISC) 
About to write to /Users/xuanwu/work/javascript-apps/npm-module-demo/package.json:

{
  "name": "npm-module-demo-cn",
  "version": "1.0.0",
  "description": "",
  "main": "入口.js",
  "scripts": {
    "test": "echo "Error: no test specified" && exit 1"
  },
  "author": "",
  "license": "ISC"
}


Is this OK? (yes)

创建入口文件

入口.js:

exports.回应 = function() {
  console.log("模块演示");
}

测试模块

首先需要发布模块到 npm. 但在运行npm publish时, 报错:

npm ERR! code E401
npm ERR! 401 Unauthorized - PUT https://registry.npmjs.org/npm-module-demo-cn - You must be logged in to publish packages.

发现要先运行npm adduser, 创建用户账号.

npm ERR! code E403
npm ERR! 403 Forbidden - PUT https://registry.npmjs.org/npm-module-demo-cn - you must verify your email before publishing a new package: https://www.npmjs.com/email-edit

还需验证电邮。之后发布成功.

新建测试目录后, 添加 test.js:

var 演示 = require('npm-module-demo-cn')

演示.回应()

测试目录下安装模块: npm install npm-module-demo-cn

测试通过:

$ node test
模块演示 

✌️