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
Authors have earned$9,893,579writing, 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
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
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
C++ Best Practices
Jason TurnerLevel up your C++, get the tools working for you, eliminate common problems, and move on to more exciting things!
- #2
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.
- #3
Functional Design and Architecture
Alexander GraninSoftware Design in Functional Programming, Design Patterns and Practices, Methodologies and Application Architectures. How to build real software in Haskell with less efforts and low risks. The first complete source of knowledge.
- #4
Atomic Kotlin
Bruce Eckel and Svetlana IsakovaFor both beginning and experienced programmers! From the author of the multi-award-winning Thinking in C++ and Thinking in Java together with a member of the Kotlin language team comes a book that breaks the concepts into small, easy-to-digest "atoms," along with exercises supported by hints and solutions directly inside IntelliJ IDEA!
- #5
C++20
Rainer GrimmC++20 is the next big C++ standard after C++11. As C++11 did it, C++20 changes the way we program modern C++. This change is, in particular, due to the big four of C++20: ranges, coroutines, concepts, and modules.
The book is almost daily updated. These incremental updates ease my interaction with the proofreaders.
- #6
Introductory Statistics with Randomization and Simulation
Mine Cetinkaya-Rundel, Christopher Barr, OpenIntro, and David DiezA complete foundation for Statistics, also serving as a foundation for Data Science, that introduces inference using randomization and simulation while covering traditional methods.
Leanpub revenue supports OpenIntro, so we can provide free desk copies to teachers interested in using our books in the classroom.
More resources: openintro.org.
- #7
Java OOP Done Right
Alan MellorObject Oriented Programming is still a great way to create clean, maintainable code. But only if you use it right.
This book gives you 25 years of OO best practice, ready to use.
You'll learn to design objects behaviour-first, use TDD to help, then confidently apply Design Patterns, SOLID principles and Refactoring to make clean, crafted code.
- #8
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.
- #9
Composing Software
Eric ElliottAll software design is composition: the act of breaking complex problems down into smaller problems and composing those solutions. Most developers have a limited understanding of compositional techniques. It's time for that to change.
- #10
Cloud Strategy
Gregor Hohpe“Strategy is the difference between making a wish and making it come true.” A successful migration to the cloud shouldn’t be driven by wishes, but guided by a sound strategy, frameworks, and decision models. This book tells you how—without becoming superficial nor getting lost in technology and product details.
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
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... - #3
Cisco CCNA 200-301 Complet
4 Books
Ce lot comprend les quatre volumes du guide préparation à l'examen de certification Cisco CCNA 200-301. - #4
CCDE Practical Studies (All labs)
3 Books
CCDE lab - #5
Modern Management Made Easy
3 Books
Read all three Modern Management Made Easy books. Learn to manage yourself, lead and serve others, and lead the organization. - #6
The Future of Digital Health
6 Books
We put together the most popular books from The Medical Futurist to provide a clear picture about the major trends shaping the future of medicine and healthcare. Digital health technologies, artificial intelligence, the future of 20 medical specialties, big pharma, data privacy and how technology giants such as Amazon or Google want to conquer... - #7
Modern C++ by Nicolai Josuttis
2 Books
- #8
Django for Beginners/APIs/Professionals
3 Books
- #9
"The C++ Standard Library" and "Concurrency with Modern C++"
2 Books
Get my books "The C++ Standard Library" and "Concurrency with Modern C++" in a bundle. The first book gives you the details you should know about the C++ standard library; the second one dives deeper into concurrency with modern C++. In sum, you get more than 600 pages full of modern C++ and about 250 source files presenting the standard library... - #10
Linux Administration Complet
4 Books
Ce lot comprend les quatre volumes du Guide Linux Administration :Linux Administration, Volume 1, Administration fondamentale : Guide pratique de préparation aux examens de certification LPIC 1, Linux Essentials, RHCSA et LFCS. Administration fondamentale. Introduction à Linux. Le Shell. Traitement du texte. Arborescence de fichiers. Sécurité...
