npm 使用心得 === 基本上有安裝過 node.js 就可以使用 npm 假設想安裝 jQuery 就下指令 ```bash= npm install jquery ``` ![](https://i.imgur.com/QTBhpOV.png) ## 一次安裝多個套件 透過指令 ```bash= npm init ``` 可以產生 package.json 內容如下:point_down: ```json= { "name": "sam", "version": "1.0.0", "description": "npm init", "main": "index.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "author": "", "license": "ISC" } ``` 只要下過安裝套件指令，例如:安裝 jQuery ```bash= npm install jquery ``` ![](https://i.imgur.com/KIErywb.png) package.json 內就會記錄在 dependencies 欄位上 ```json= { "name": "sam", "version": "1.0.0", "description": "npm init", "main": "index.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "author": "", "license": "ISC", "dependencies": { "jquery": "^3.5.1" } } ``` 只後只要帶著　package.json　就能透過指令一次安裝所有套件 ```bash= npm install ``` ![npm install](https://i.imgur.com/PcynLFA.png) ## 參考資料 [Node.js 系列學習日誌 #6 - 使用 package.json 安裝、管理模組](https://ithelp.ithome.com.tw/articles/10158140) ###### tags: `npm`