The Joy of JavaScript
Luis Atencio
  • MEAP began March 2019
  • Publication in Spring 2021 (estimated)
  • ISBN 9781617295867
  • 325 pages (estimated)
  • printed in black & white

The book Joy of JavaScript is a joy to read. Written by the author of the excellent Functional Programming in JavaScript, the new book goes beyond purely functional programming concepts and covers every topic a developer might need to know while reading or writing JavaScript in 2020, and it covers it well. There are plenty of examples and plenty of good explanations.

Gleb Mahmutov
Whether for building interactive browser-based applications or creating server-side applications in Node, JavaScript is the most widely used language for web programming. With new features, language improvements, paradigms, and potential use cases appearing regularly, there’s never been a more exciting time to be a JavaScript developer. In The Joy of JavaScript, author and JavaScript expert Luis Atencio teaches you key design concepts that lead to clean, lean, modular, and easy-to-maintain code.

About the Technology

As web applications have become more complex and sophisticated, JavaScript has advanced with them, thanks in large part to TC39, a JavaScript task group committed to evolving and improving the language. JavaScript has become lightweight and dynamic, with first-class functions and support for classes and asynchronous programming. JavaScript is multi-paradigm, supporting object-oriented, functional, reactive, and event-driven styles of programming. And transpilers like Babel make it possible to compile code written in other languages into JavaScript. It’s never been easier, more rewarding, or more joyful to be a JavaScript developer!

About the book

The Joy of JavaScript teaches you how to design JavaScript applications founded in sound computer science concepts and real-world industry success. First, you’ll get up close and personal with JavaScript’s object system. From there, you’ll dive into programming objects and functions. As you build various domain models, you’ll learn the pros and cons of techniques ranging from prototype-centered tightly coupled object configurations to loosely coupled delegation-based compositions. You’ll also explore ways of connecting objects with pure functions, and driving business logic with immutability and algebraic data types.

Using JavaScript’s shiny new module system and dynamically hooking into your data with Proxy and Reflect APIs, you’ll master tracing, logging, and performance trackers without having to modify your application components. You’ll also discover blockchain concepts as you develop pieces of a transaction management system. Along the way, you’ll explore topics like using JavaScript with different paradigms and how to overlay type information into JavaScript without having to switch to TypeScript. Illustrated, easy-to-grasp use cases and a hands-on peer-to-peer project lock in all you’ve learned, then take your learning further by showing you how to untangle complex asynchronous behaviors using promises, generators, and ES7 async-await syntax.

What's inside

  • JavaScript’s objects and module system
  • Working with higher order functions
  • Driving application business logic with functional programming principles
  • Dynamically hooking into data with Proxy and Reflect APIs
  • Taming complex asynchronous behavior using reactive programming
  • Static type-checking with Flow
  • A hands-on peer-to-peer event driven system project
  • Future JavaScript proposals coming down the pike

About the reader

Perfect for professional JavaScript developers with a good understanding of the JavaScript fundamentals.

About the author

Luis Atencio is a software engineer for Citrix Systems, where he develops and architects web applications leveraging Java, PHP, and JavaScript platforms. He blogs about software engineering at https://medium.com/@luijar, has spoken in many dev conferences, and has written articles for PHPArch magazine and DZone Refcardz. Luis is the author of Manning’s Functional Programming in JavaScript and the co-author of Manning’s RxJS in Action.

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