npm 中的package.json

    技术2022-07-14  72

    npm 中的package.json

    1. npm

    package又叫node package manager 包管理器

    2. package.json

    作用是: 项目中都是用了什么包, 相互依赖关系是什么。 node_modules丢失了,怎么恢复,留作备案。

    我们建议每个项目总都要有一个package。json文件(报表数文件,就像产品的说明书一样,给人踏实的感觉。)

    如何备案 : npm install art-template --save 这个save就是保存依赖信息

    存放位置是 package.json 中的 “dependencies”: { “jquery”: “^3.5.1” }

    3.作用:

    如果node_modules 删除了, 命令行中执行npm install , 会自动下载依赖项。

    4.向导方式 init

    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>` afterwards to install a package and save it as a dependency in the package.json file. Press ^C at any time to quit. package name: (test) version: (0.0.1) git repository: keywords: license: (ISC) About to write to C:\Users\luyunxiao\Desktop\node\test\package.json: { "name": "test", "version": "0.0.1", "description": "鎻忚堪锛氳繖鏄竴涓祴璇曢」鐩?, "main": "index.js", "scripts": { "test": "echo \"Error: no test specified\" && exit 1" }, "author": "lyx", "license": "ISC" } Is this OK? (yes) y

    - 笔记仅作为学习交流使用,如有异议请私信楼主删除。

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