中文教程：如何创建 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 initThis 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 fieldsand exactly what they do.Use `npm install <pkg>` afterwards to install a package andsave 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-cnversion: (1.0.0) description: entry point: (index.js) 入口.jstest 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 E401npm 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 E403npm 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 

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