npm 常用命令
npm install moduleNames:安装Node模块 npm install moduleNames –save:安装Node模块并添加依赖(写入到package.json)会在当前目录下安装包,版本信息也会添加到依赖中,会安装到dependencies选项中 npm install moduleNames –save-dev 开发阶段使用的依赖包,会安装到devDependencies选项中 npm install moduleNames -g 全局安装 npm list:查看当前目录下已安装的node包 npm list moduleNames: 查看模块版本 npm update moduleName:更新node模块 npm uninstall moudleName:卸载node模块 npm init: 初始化 npm ls: 查看所有模块 初始化工程后会生成package.json { "name": "npm", "version": "1.0.0", "description": "", "main": "index.js",//入口文件 "dependencies": { //项目依赖包 "_jquery@3.2.1@jquery": "^3.2.1", "jquery": "^3.2.1" }, "devDependencies": {},//开发阶段依赖的包 "scripts": { //命令 "test": "echo \"Error: no test specified\" && exit 1" }, "author": "", "license": "ISC" }