我刚刚开始学习React, Facebook通过提供以下现成的项目来帮助简化初始设置。
如果我必须安装框架项目，我必须在命令行中键入npx create-react-app my-app。
我想知道为什么Facebook在Github有npx create-react-app my-app而不是npm create-react-app my-app?
当前回答
NPM =>是一个JS包管理器。
NPX =>是一个执行Node包和执行npm包二进制文件的工具。
很容易记住:
-npm代表MANAGER
-npx代表EXECUTE
其他回答
NPM与NPX的区别如下:
i) NPM用于安装包，NPX用于执行包。
ii)由于npm的缘故，安装的包必须被照顾，因为它是全局安装的，而npx使用的包不需要被照顾，因为它们不是全局安装的。
简单的定义:
Javascript包管理器
npx -执行npm包的二进制文件
NPX是一个用于在新项目中创建和执行某些特性的工具 NPM是包含所有库的包管理器
NPM是一个包管理器，你可以使用NPM安装node.js包
NPX是一个执行node.js包的工具。
无论您是在全局还是本地安装该包。NPX将临时安装并运行它。如果你配置了一个包，NPM也可以运行一个包。Json文件，并包括在脚本部分。
所以请记住，如果您想快速检查/运行一个节点包，而不需要在本地或全局安装，请使用NPX。
npM -经理
npX -执行-容易记住
NPX:
从https://www.futurehosting.com/blog/npx-makes-life-easier-for-node-developers-plus-node-vulnerability-news/:
Web developers can have dozens of projects on their development machines, and each project has its own particular set of npm-installed dependencies. A few years back, the usual advice for dealing with CLI applications like Grunt or Gulp was to install them locally in each project and also globally so they could easily be run from the command line. But installing globally caused as many problems as it solved. Projects may depend on different versions of command line tools, and polluting the operating system with lots of development-specific CLI tools isn’t great either. Today, most developers prefer to install tools locally and leave it at that. Local versions of tools allow developers to pull projects from GitHub without worrying about incompatibilities with globally installed versions of tools. NPM can just install local versions and you’re good to go. But project specific installations aren’t without their problems: how do you run the right version of the tool without specifying its exact location in the project or playing around with aliases? That’s the problem npx solves. A new tool included in NPM 5.2, npx is a small utility that’s smart enough to run the right application when it’s called from within a project. If you wanted to run the project-local version of mocha, for example, you can run npx mocha inside the project and it will do what you expect. A useful side benefit of npx is that it will automatically install npm packages that aren’t already installed. So, as the tool’s creator Kat Marchán points out, you can run npx benny-hill without having to deal with Benny Hill polluting the global environment. If you want to take npx for a spin, update to the most recent version of npm.
