Node.js No-frills npm

Learning points

View version

Upgrade

Install module

Use module

View module list

Uninstall module

Update module

Search module

Create module

Publish module

REPL

npm package Manager

View version

[code]npm -v

npm upgrade

Under windows

[code]npm install npm -g

lunix under

[code]sudo npm install npm -g
/usr/local/bin/npm -> /usr/local/lib/node_modules/npm/bin/npm-cli.js
npm@2.14.2 /usr/local/lib/node_modules/npm

Installation Module—express module

[code]npm install express

The installation directory is in the node_modules folder under the current project

Use the module

[code]var express = require('express');

View the installed module

[code]npm ls

Uninstall and install Module

[code]npm unstall express

Update module

[code]npm update express

Search module

[code]npm search express

Create module

Terminal command:

npm init

Then enter as required until Is this ok? (yes)

Finally generate the package.json file

[code]{
  "name": "wolf",                     // 模块名称
  "version": "1.0.0",                 // 版本号
  "description": "海涵狼群俱乐部",    // 描述
  // main 字段是一个模块ID，它是一个指向你程序的主要项目。
  // 就是说，如果你包的名字叫 express，然后用户安装它，然后require("express")。
  "main": "index.js",                 
  "dependencies": {                   // 依赖包列表
    "express": "^4.14.0"
  },
  "devDependencies": {},
  "scripts": {                        // 测试
    "test": "make test",
    "start": "node server.js"
  },
  "repository": {                     // github账号
    "type": "git",
    "url": "http://lamport.me/club"
  },  
  "author": "zhang",                   // 作者
  "license": "ISC"                    // 护照
}

Registered user

[code]npm adduser

Publish module

[code]npm publish

##Node.js REPL (Read Eval Print Loop) Interactive interpreter
Terminal starts node

Exit twice ctrl + c

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