1. Node.js安装
1.1 Node.js下载
Node.js官网:https://nodejs.org
当前下载版本(含npm):Latest LTS Version: v6.10.3 (includes npm 3.10.10)
1.2 Node.js及npm查看版本
安装Node.js之后,查看Node.js及npm版本。
node -v
npm -v
2. npm常用命令
npm(node package manager),node包管理器,主要功能是管理node包,包括:安装、卸载、更新、查看、搜索、发布等。
npm官网文档:https://docs.npmjs.com/
2.1 npm配置
npm install -g cnpm --registry=https://registry.npm.taobao.org
2.2 npm包管理
◊ npm init:在项目中引导创建一个package.json文件
npm init [-f|--force|-y|--yes]
PS F:\Projects\Libing.Portal> 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 <pkg> --save` afterwards to install a package and
save it as a dependency in the package.json file.
Press ^C at any time to quit.
name: (Libing.Portal) libing.portal
version: (1.0.0)
description:
entry point: (index.js) main.js
test command:
git repository:
keywords:
author: libing
license: (ISC) MIT
About to write to F:\Projects\Libing.Portal\package.json:
{
"name": "libing.portal",
"version": "1.0.0",
"description": "",
"main": "main.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "libing",
"license": "MIT"
} Is this ok? (yes)
◊ npm install:安装包
npm install命令参数形式:
npm install --help
npm install (with no args, in package dir)
npm install [<@scope>/]<pkg>
npm install [<@scope>/]<pkg>@<tag>
npm install [<@scope>/]<pkg>@<version>
npm install [<@scope>/]<pkg>@<version range>
npm install <folder>
npm install <tarball file>
npm install <tarball url>
npm install <git:// url>
npm install <github username>/<github project> aliases: i, isntall
common options: [--save|--save-dev|--save-optional] [--save-exact]
示例:
npm install angular
运行之后将创建文件夹node_modules,默认安装包最新版本。
指定安装包版本:
npm install angular@1.2.32
-S, --save 安装包信息将加入到dependencies(生产阶段的依赖):
npm install angular -S
"dependencies": {
"angular": "^1.6.4"
},
-D, --save-dev 安装包信息将加入到devDependencies(开发阶段的依赖):
npm install angular -D
"devDependencies": {
"angular": "^1.6.4"
}
安装包的依赖都被写入了package.json文件后,可以使用npm install根据dependencies配置安装全部依赖包。
npm install
◊ npm uninstall:卸载包
npm uninstall命令参数形式:
npm uninstall -help
npm uninstall [<@scope>/]<pkg>[@<version>]... [--save|--save-dev|--save-optional]
npm uninstall angular -S
◊ npm list:查看全部已安装包
npm list
◊ npm outdated检查包是否过时
npm outdated
◊ npm update:更新包
npm update [-g] [<pkg>...]
◊ npm view:查看包的注册信息
npm view [<@scope>/]<pkg>[@<version>] [<field>[.subfield]...]
npm view angular
npm view angular dependencies:查看包的依赖关系
npm view angular repository.url:查看包的源文件地址