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
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 60-day 100% Happiness Guarantee
Within 60 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$11,823,534writing, 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) and EPUB (for phones, tablets and 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
Stratospheric
Tom Hombergs, Björn Wilmsmann, and Philip RiecksFrom Zero to Production with Spring Boot and AWS. All you need to know to get a Spring Boot application into production with AWS. No previous AWS knowledge required.
Go to stratospheric.dev for a tour of the contents.
- #2
Advanced Web Application Architecture
Matthias NobackThe missing manual for making your web applications future-proof
- #3
node-opcua by example
Etienne RossignonGet the best out of node-opcua through a set of documented examples by the author himself that will allow you to create stunning OPCUA Servers or Clients.
- #4
C++20 - The Complete Guide
Nicolai M. JosuttisAll new language and library features of C++20 (for those who know previous C++ versions).
The book presents all new language and library features of C++20. Learn how this impacts day-to-day programming, to benefit in practice, to combine new features, and to avoid all new traps.
Buy early, pay less, free updates.
Other books:
- #5
Introduction to Data Science
Rafael A IrizarryThe demand for skilled data science practitioners in industry, academia, and government is rapidly growing. This book introduces concepts from probability, statistical inference, linear regression and machine learning and R programming skills. Throughout the book we demonstrate how these can help you tackle real-world data analysis challenges.
- #6
Maîtriser Apache JMeter
Philippe Mouawad, Bruno Demion (Milamber), and Antonio Gomes RodriguesToute la puissance d'Apache JMeter expliquée par ses commiteurs et utilisateurs experts. De l'intégration continue en passant par le Cloud, vous découvrirez comment intégrer JMeter à vos processus "Agile" et Devops.
If you're looking for the newer english version of this book, go to Master JMeter : From load testing to DevOps
- #7
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.
- #8
Aprendiendo Git
Miguel Angel Durán GarcíaGit no es complicado... ¡Si lo entiendes! 😜
¿Sientes que sabes usarlo porque has memorizado todos los comandos que necesitas? ¡Pero no entiendes qué hace cada cosa y por qué! Así es normal que, cuando exista un problema, te cueste resolverlo.
¡Con este libro vas a entender de una vez por todas todo lo que es Git y cómo sacarle provecho!
- #9
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.
- #10
R Programming for Data Science
Roger D. PengThis book brings the fundamentals of R programming to you, using the same material developed as part of the industry-leading Johns Hopkins Data Science Specialization. The skills taught in this book will lay the foundation for you to begin your journey learning data science. Printed copies of this book are available through Lulu.
Top Bundles
- #1
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... - #2
All the Books of The Medical Futurist
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, digital health investments and how technology giants such as Amazon... - #4
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... - #5
Software Architecture
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... - #6
Practical FP in Scala + Functional event-driven architecture
2 Books
Practical FP in Scala (A hands-on approach) & Functional event-driven architecture, aka FEDA, (Powered by Scala 3), together as a bundle! The content of PFP in Scala is a requirement to understand FEDA so why not take advantage of this bundle!? - #10
Learn Git, Bash, and Terraform the Hard Way
3 Books
Learn Git, Bash and Terraform using the Hard Way method.These technologies are essential tools in the DevOps armoury. These books walk you through their features and subtleties in a simple, gradual way that reinforces learning rather than baffling you with theory.
