JavaScript Allongé, the "Six" Edition
JavaScript Allongé, the "Six" Edition
Programming from Functions to Classes in ECMAScript 2015
About the Book
What readers have to say:
“Spent the afternoon reading @raganwald's JavaScript Allongé, the Six Edition. Highly recommended. Let the refactoring begin!”—Marcus Vorwaller
“I think it’s one of the best tech books I’ve read since Sedgewick’s Algorithms in C.”—Andrey Sidorov
“Your explanation of closures in JavaScript Allongé is the best I've read.”—Emehrkay
“It's a different approach to JavaScript than you'll find in most other places and shines a light on some of the more elegant parts of JavaScript the language.”—@jeremymorrell
“This book is awesome and blowing my mind in a great way.”—Johnathan Mukai
“Enjoying Javascript Allonge... I think it's the best discussion of functional programming in js I've found so far.”—Nicholas Faiz
And listen to the JavaScript Jabber Book Club Podcast about JavaScript Allongé!
“Reading JavaScript Allongé by @raganwald. This book is so good that it's blowing my mind.”—Guillermo Pascual
License
About the Author
Bundles that include this book
Reader Testimonials
Axel Rauschmayer
Author, “Exploring ES6"
JavaScript Allongé, the ‘Six' Edition is both a comprehensive tour of its features and a rich collection of techniques for making better use of them. You will learn much about functional programming and object-oriented programming. And you’ll do so via ES
Jarvis Badgley
Allongé is a must-read book for any JavaScript developer. No single book changed my programming style and the way I approach problems quite like it did.
Daniel Pecos
This book is not the usual Learn the language in 24 hours or something like that. It’s actually a very sharp and deep reading about Javascript and function composition.
Table of Contents
-
A Pull of the Lever: Prefaces
- About JavaScript Allongé
- What JavaScript Allongé is. And isn’t.
- Foreword to the “Six” edition
- Forewords to the First Edition
-
Prelude: Values and Expressions over Coffee
- values are expressions
- values and identity
- A Rich Aroma: Basic Numbers
-
The first sip: Basic Functions
- As Little As Possible About Functions, But No Less
- Ah. I’d Like to Have an Argument, Please.
- Closures and Scope
- That Constant Coffee Craving
- Naming Functions
- Combinators and Function Decorators
- Building Blocks
- Magic Names
- Summary
-
Recipes with Basic Functions
- Partial Application
- Unary
- Tap
- Maybe
- Once
- Left-Variadic Functions
- Compose and Pipeline
- Picking the Bean: Choice and Truthiness
-
Composing and Decomposing Data
- Arrays and Destructuring Arguments
- Self-Similarity
- Tail Calls (and Default Arguments)
- Garbage, Garbage Everywhere
- Plain Old JavaScript Objects
- Mutation
- Reassignment
- Copy on Write
- Tortoises, Hares, and Teleporting Turtles
- Functional Iterators
- Making Data Out Of Functions
-
Recipes with Data
- mapWith
- Flip
- Object.assign
- Why?
- A Warm Cup: Basic Strings and Quasi-Literals
-
Stir the Allongé: Objects and State
- Encapsulating State with Closures
- Composition and Extension
- This and That
- What Context Applies When We Call a Function?
- Method Decorators
- Summary
-
Recipes with Objects, Mutations, and State
- Memoize
- getWith
- pluckWith
- Deep Mapping
- The Coffee Factory: “Object-Oriented Programming”
-
Served by the Pot: Collections
- Iteration and Iterables
- Generating Iterables
- Lazy and Eager Collections
- Interlude: The Carpenter Interviews for a Job
- Interactive Generators
- Basic Operations on Iterables
- A Coffeehouse: Symbols
-
Life on the Plantation: Metaobjects
- Why Metaobjects?
- Mixins, Forwarding, and Delegation
- Later Binding
- Delegation via Prototypes
- Shared Prototypes
- Decaffeinated: Impostors
-
Finish the Cup: Constructors and Classes
-
Constructors and
new - Why Classes in JavaScript?
-
Classes with
class - Object Methods
- Why Not Classes?
- Summary
-
Constructors and
-
Recipes with Constructors and Classes
- Bound
- Send
- Invoke
- Fluent
- Colourful Mugs: Symmetry, Colour, and Charm
-
Con Panna: Composing Class Behaviour
- Extending Classes with Mixins
- Functional Mixins
- Emulating Multiple Inheritance
- Preventing Property Conflicts
- Reducing Coupling
-
More Decorators
- Stateful Method Decorators
- Class Decorators beyond ES6/ECMAScript 2015
- Method Decorators beyond ES6/ECMAScript 2015
- Lightweight Traits
-
More Decorator Recipes
- After Method Advice
- Before Method Advice
- Provided and Unless
- Method Advice
- Closing Time at the Coffeeshop: Final Remarks
-
The Golden Crema: Appendices and Afterwords
- How to run the examples
- Thanks!
- Reading JavaScript Allongé on Kindle
- Copyright Notice
- About The Author
- Notes
The Leanpub 45-day 100% Happiness Guarantee
Within 45 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
Do Well. Do Good.
Authors have earned$10,909,613writing, publishing and selling on Leanpub, earning 80% royalties while saving up to 25 million pounds of CO2 and up to 46,000 trees.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers), EPUB (for phones and tablets) and MOBI (for Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Top Books
- #1
Learning Algorithms Through Programming and Puzzle Solving
Alexander S. Kulikov and Pavel PevznerThis book powers our MicroMasters program on edX and specialization on Coursera, one of the ten most popular computer science courses on Coursera. Over half a million students have tried to solve many programming challenges and algorithmic puzzles described in this book. We invite you to join them! See the webpage of the book for more details.
- #2
入門 日本語自然言語処理
Masato Hagiwara and Paul O'Leary McCann日本語テキストを処理したい全てのプログラマ・エンジニアの方へ。分かち書きなどの基本から、自然言語生成などの最新の話題までをカバー。動かして学べるコードや、参照文献も付いています。言語学や機械学習の知識が無くても問題ありません。
- #3
Functional Programming Made Easier
Charles ScalfaniA Functional Programming book from beginner to advanced without skipping a single step along the way.
In my 40 years of programming, I've felt that programming books always let me down, especially Functional Programming books. So, I wrote the book I wish I had 5 years ago.
Functional Programming will never be easy, but it can be easier.
- #4
Cloud Strategy
Gregor Hohpe“Strategy is the difference between making a wish and making it come true.” A successful migration to the cloud can transform your organization, but it shouldn’t be driven by wishes. This book tells you how to develop a sound strategy guided by frameworks and decision models without being overly abstract nor getting lost in product details.
- #5
Ansible for DevOps
Jeff GeerlingAnsible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
- #6
OpenIntro Statistics
David Diez, Christopher Barr, Mine Cetinkaya-Rundel, and OpenIntroA complete foundation for Statistics, also serving as a foundation for Data Science.
Leanpub revenue supports OpenIntro (US-based nonprofit) so we can provide free desk copies to teachers interested in using OpenIntro Statistics in the classroom and expand the project to support free textbooks in other subjects.
More resources: openintro.org.
- #7
Scrum Product Ownership - Navigating the Forest AND the Trees, 3'rd Edition
Robert GalenIn 2009, I published Scrum Product Ownership - Ed. 1. Then the 2'nd Ed. in 2013. This is the 3'rd edition, celebrating the 10th anniversary of the original book. It's evolved from a beginners guide to be a more balanced reference for beginners, practitioner, and expert Product Owners.
- #8
Functional event-driven architecture: Powered by Scala 3
Gabriel VolpeExplore the event-driven architecture (EDA) in a purely functional way, mainly powered by Fs2 streams in Scala 3!
Leverage your functional programming skills by designing and writing stateless microservices that scale, powered by stateful message brokers.
- #9
Introducing EventStorming
Alberto BrandoliniThe deepest tutorial and explanation about EventStorming, straight from the inventor.
- #10
Agile Testing Condensed Japanese Edition
Yuya Kazama, Janet Gregory, and Lisa CrispinJanet GregoryとLisa Crispinによる2019年9月発行の書籍『Agile Testing Condensed』の日本語翻訳版です。アジャイルにおいてどのような考えでテストを行うべきなのか簡潔に書かれています！
Top Bundles
- #1
Software Architecture for Developers: Volumes 1 & 2 - Technical leadership and communication
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before... - #2
The Indie Python Extravaganza
5 Books
The Indie Python Extravaganza! A collection of books that will help you to improve your knowledge of the Python programming language one page at a time. Join four indie authors in a journey from the basics of Python to the structure of production-ready systems, going through the core features of the language, some intermediate projects and a... - #3
CCIE Service Provider Ultimate Study Bundle
2 Books
Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification... - #4
Modern C++ Collection
3 Books
Get All about Modern C++C++ Standard Library, including C++20Concurrency with Modern C++, including C++20C++20Each book has about 200 complete code examples. Updates are included. When I update one of the books, you immediately get the updated bundle. You can expect significant updates to each new C++ standard (C++23, C++26, .. ) and also... - #6
Abandon Your Job - Leaving the Rat Race with Python
8 Books
Now, get all the great Python and Freelancing books from finxter.com in one single bundle!Coffee Break Python - All Python BasicsCoffee Break Python Workbook - Practice the basics of PythonCoffee Break Python Mastery Workouts - Practice advanced Python conceptsCoffee Break Python Slicing - All about SlicingCoffee Break Python NumPy - Get started... - #7
10 Books Bundle - A New Career in Tech 🚀
10 Books
Do you want to create yourself a new and profitable skillset - in one year or less? Do you want to position yourself on the right side of change finally? Do you want to work from home and set your own work schedule while choosing fun and interesting coding projects? Software developers and freelance developersearn six figuresin the US, according... - #8
The Python Craftsman
3 Books
The Python Craftsman series comprises The Python Apprentice, The Python Journeyman, and The Python Master. The first book is primarily suitable for for programmers with some experience of programming in another language. If you don't have any experience with programming this book may be a bit daunting. You'll be learning not just a programming... - #10
Pattern-Oriented Memory Forensics and Malware Detection
2 Books
This training bundle for security engineers and researchers, malware and memory forensics analysts includes two accelerated training courses for Windows memory dump analysis using WinDbg. It is also useful for technical support and escalation engineers who analyze memory dumps from complex software environments and need to check for possible...
