Creating NPM Package: Simplified TypeScript Guide to Building and Publishing Libraries

Updated for 2026 Do you want to publish high-quality TypeScript packages to NPM without struggling with complicated setups or unreliable release scripts? Creating NPM Package is a hands-on, step-by-step guide that walks you through every stage of building a modern TypeScript library, from setting up your project to automating production releases. This new edition includes the latest best practices, such as using semantic-release for automated versioning and release notes, setting up secure NPM Trusted Publishing, and a ... Read More

Updated for 2026 Do you want to publish high-quality TypeScript packages to NPM without struggling with complicated setups or unreliable release scripts? Creating NPM Package is a hands-on, step-by-step guide that walks you through every stage of building a modern TypeScript library, from setting up your project to automating production releases. This new edition includes the latest best practices, such as using semantic-release for automated versioning and release notes, setting up secure NPM Trusted Publishing, and a new chapter on making your TypeScript codebase more modular and scalable. If you've ever asked yourself questions like these: How should I structure my TypeScript library? How do I compile to both ESM and CommonJS correctly? How do I automate versioning and changelogs without manual work? How do I securely publish using modern CI workflows? How do I scale my library beyond a single file? This book gives you clear, practical answers to all of these questions. What You'll Learn Inside Configure a clean, scalable TypeScript project Compile to both ECMAScript (ESM) and CommonJS (CJS) modules Properly separate source code and distribution builds Define correct entry points and declaration files Modularize your TypeScript codebase for maintainability Test your package before and after publishing Automate version management and release notes using semantic-release Implement NPM Trusted Publishing for secure, tokenless releases Create professional README and LICENSE files Publish and validate your package in both local and production environments This book is more than just a tutorial. It gives you a repeatable system you can use for different projects. Why Choose This Book Clear, simplified explanations without unnecessary theory Real-world workflows used by professional library authors Automation-first approach to eliminate manual release headaches It focuses on the steps for building and publishing libraries, not just on TypeScript programming itself. Who This Book Is For TypeScript developers ready to publish reusable libraries JavaScript developers transitioning to TypeScript development Open-source contributors aiming to adopt professional workflows Teams requiring consistent and maintainable package configurations Whether you're publishing your first open-source project or improving a professional release process, this book will help you deliver clean, typed, and automated TypeScript libraries without extra complexity. Start building smarter today. Start publishing like a pro. Read Less