我必须为每个新项目安装 npm 吗？

Question

I have NPM installed in my PC how to use it for a new project?

or do I have to install npm for every new project?

Answer 1

NPM is extremely useful, but, when you install it, you install it globally. It comes with Node JS, so when you install Node JS, you should have npm installed(type npm -v to see the version and whether npm is installed).

"npm init" creates a package.json for your folder, which contains all the information about the version number, the name of the project, and some other information. In package.json, you can add dependencies, which basically say your project relies on that npm package.

"npm install" will install all the packages specified in package.json, and, if you want to install something specific, you would type "npm install ".