That’s why it’s essential to include package.json before publishing projects on the npm registry. The package.json file simplifies identifying, managing, and installing a package. It contains the metadata of npm projects or packages, such as package versions and contributors. Registry – any package or module you install using the npm CLI is downloaded from the npm public registry, the JavaScript software database.Įvery npm project contains package.json, a file located in the root directory.Command-line interface (CLI) – developers run the npm CLI from a terminal or a command-line tool to install or uninstall packages and manage versions or dependencies.Angular, React, and jQuery are some of the packages you can download from an npm repository. Repository – npm is a widely used repository for publishing open-source Node projects, where developers can share their source code with other npm users.Here are the three defining roles of npm:

It comes bundled with node.js, an open-source server environment. Node package manager (npm) is one of the largest software registries in the world.

Npm tutorial for beginners