TypeScript Application Performance

The book "TypeScript Application Performance" is a practical guide for developers who want to learn how to write fast, efficient, and scalable code in TypeScript. Unlike many textbooks that focus on syntax and types, this book is dedicated exclusively to performance issues: from measuring speed to implementing advanced optimization techniques.

What is the book about?

The author systematically breaks down all stages of the TypeScript application lifecycle. You will learn how to profile code, find "bottlenecks," and eliminate them without losing readability. Special attention is paid to memory management, asynchronous operations, build optimization, and interaction with the browser or server (Node.js). The book covers real-world cases and anti-patterns that slow down applications.

Who is this book for?

• Frontend and backend developers using TypeScript in production projects.
• Developers transitioning from JavaScript to TypeScript who want to avoid common performance pitfalls.
• Team leads and architects responsible for code speed and stability.
• Anyone who wants to gain a deeper understanding of how the TypeScript compiler works and how tsconfig settings affect performance.

What will you learn?

• How to measure performance using built-in tools (Chrome DevTools, Node.js profiler).
• How to optimize types and interfaces to speed up compilation.
• How to avoid expensive operations (frequent reflows, unnecessary allocations, memory leaks).
• How to configure bundlers (Webpack, Vite, esbuild) for maximum loading speed.
• How to write efficient asynchronous chains and work with data streams.
• How to refactor legacy code without losing performance.

The book contains numerous code examples, graphs, and checklists. After reading it, you will be able not only to speed up existing projects but also to design new ones with performance in mind from the very beginning.

"TypeScript Application Performance" is not a reference book, but a practical tool that should be on the desk of every serious developer.