This document provides a quick reference guide for the most commonly used Node.js and npm commands.

node -v

Displays the installed Node.js version.

npm -v

Displays the installed npm version.

npm init

Starts a guided process to create a new Node.js project and generates a package.json file.

npm install <package-name>

Installs a Node.js package. For example, npm install express installs the Express.js library.

npm install <package-name> --save

Adds a package to your project's package.json file as a dependency.

npm uninstall <package-name>

Removes a package from your project.

npm install -g <package-name>

Installs a package globally, making it available for all your projects.

npm update

Updates the dependencies in your project.

npm outdated

Checks if packages in your project are outdated.

node <file-name.js>

Runs a Node.js application.

npm publish

Used to publish your own package on npm.

npm unpublish <package-name> --force

Used to delete your package from npm.