How to Publish Package to NPM – Step by Step

Prerequisite

Make sure you have an NPM account. If not, just go to NPM and create a free account.

You need to have an IDE, either VS Code or IntelliJ.

Step-by-Step Guide

1. Set up your project

Start by initializing a new project. Run this command in your terminal:

npm init

Follow the prompts to create a package.json file for your project.

2. Write your code
Create your code and make sure it works properly. Your main entry file (e.g., index.js) should be set in package.json under "main".

3. Add a .gitignore file
Include files and directories you don’t want to publish (e.g., node_modules) in a .gitignore file.

4. Log in to NPM
Run the following command to log in to your NPM account:

npm login

If you don’t have an account yet, sign up at npmjs.com.

5. Publish your package
Once everything is set, publish your package by running:

npm publish

Make sure your package name is unique. If it's scoped (e.g., @username/package-name), use npm publish --access public to make it public.

6. Update your package

For future updates, simply bump the version in your package.json and run:

npm publish

Conclusion

Publishing an NPM package is as simple as initializing a project, writing your code, and running a few commands. Now your package is live and available for the world to use!