npm install安装package.json中未指定的额外软件包

Question

我在AWS ec2实例上有一个相当典型的malloc()。我正在运行package.json而不是安装

npm install

它安装了数十个和几十个软件包（通过{ "name": "angular-app-server", "description": "Back end server to support our angular app", "version": "0.0.1", "private": true, "dependencies": { "assert": "^1.3.0", "async": "^0.9.0", "bcrypt-nodejs": "0.0.3", "body-parser": "^1.13.1", "connect-multiparty": "^1.2.5", "express": "~3.0", "express-namespace": "~0.1.1", "express-session": "^1.11.1", "forever": "^0.14.2", "mongodb": "^2.0.36", "multiparty": "^4.1.2", "nodemailer": "^1.3.4", "open": "0.0.3", "passport": "~0.1.12", "passport-local": "~0.1.6", "request": "~2.16.6", "svgo": "^0.5.3" }, "devDependencies": { "grunt": "~0.4", "grunt-contrib-jshint": "~0.2.0", "grunt-contrib-nodeunit": "~0.1.2", "rewire": "^2.0.1", "supervisor": "~0.4.1" } } ＆amp; cd node_modules）：

ls

这可能是什么原因？

感谢您的任何建议或帮助。

Answer 1

这是NPM 2和NPM 3之间的差异。 NPM 3将依赖的第一个版本作为对等体和其他版本的依赖嵌套。

• https://docs.npmjs.com/how-npm-works/npm3

• https://github.com/npm/npm/issues/11586

我想它看起来更丑，但占用的空间更少。

Answer 2

它们是您想要的模块的依赖项。这是无法避免的。