How to Create and Publish an NPM Package – a Step-by-Step Guide

This tutorial explains how to create, test and publish a package on the NPM registry, which it describes as the largest software registry on the internet with over a million packages. It walks through choosing a unique name, initializing a project with npm init, writing an index.js file, and testing locally with npm link before running npm login and npm publish. For names already in use, it recommends either choosing a different name or publishing a scoped package, such as @benjaminsemah/first-hello-npm, using npm publish --access public.