NestJS Beginner Vol 1 — JavaScript Fundamentals to Modern Backend (Prologue Edition)

Kickstart your backend journey with NestJS Beginner Vol 1 — Prologue Edition, a clear and beginner-friendly introduction that connects modern JavaScript concepts to the world of TypeScript and NestJS.

This volume covers essential fundamentals that every new backend developer must understand before working with NestJS, including:

What you'll learn inside:

• What JavaScript really is and why it dominates web development
• How ECMAScript standards shape the language
• The real difference between synchronous and asynchronous programming
• Why JavaScript outperforms Java/C# in modern web use-cases
• Core building blocks: data types, loops, conditions, functions
• Modern JavaScript features: Arrow functions, closures, currying
• Timeouts, intervals, promises, async/await explained simply
• Event loop, non-blocking I/O, sockets, tree shaking (for beginners)
• A complete summary to solidify learning

This Prologue forms the foundation of your NestJS learning path, giving you clarity before diving into actual NestJS modules, controllers, decorators, dependency injection, and real backend architecture.