The Coding Dojo Handbook
The Coding Dojo Handbook
a practical guide to creating a space where good programmers can become great programmers
About the Book
Please note that there is also a print version of this book available for purchase, for example on lulu.
As a professional programmer, how do you learn new skills like Test Driven Development? Pair Programming? Design principles?
Do you work on a team where not everyone is enthusiastic about good design and writing automated tests? How can you promote good practices amongst your colleagues?
I've worked as a programmer for many years, and these kinds of questions have come up again and again. This handbook is a collection of concrete ideas for how you can get started with a coding dojo where you (and your team) can focus on improving your practical coding skills. In my experience, it’s a fun and rewarding activity for any bunch of coders.
Learning new skills inevitably takes time and involves making mistakes. In your daily work environment where the focus is on delivering working production code, it can be hard to justify experimenting with new techniques or to persuade others to try them. When I attended my first "Coding Dojo" with Laurent Bossavit and Emmanuel Gaillot in 2005, I could see these kinds of meetings could be a fun way to effect change.
When you step into the coding dojo, you leave your daily coding environment, with all the associated complexities and problems, and enter a safe environment where you can try stuff out, make mistakes and learn with others. It's a breathing space where the focus is not on delivering solutions, but rather on being aware of what you actually do when you produce code, and how to improve that process. The benefits multiply if you can arrange to bring your whole team with you into the dojo. Through discussion and practicing on exercises, you can make a lasting impact on the way you work together.
Following the dojo I attended in 2005, I brought Laurent to my (then) workplace to show us all how it was done, and from there I began to facilitate coding dojos in various other settings. I've done them with my immediate colleagues, user groups, at conferences, and and more recently as a paid consultant brought in to do training with teams. Inspired by Corey Haines, I've also led "Code Retreat" days, which is a kind of scaled up coding dojo. All these events have been good fun - coders enjoy coding! We've had excellent discussions, learnt from each other, and written a significant amount of clean code and tests. It seems to me that acquiring skills like TDD, Refactoring and pair programming is a long process - it takes years - and it is a lot more fun and rewarding if you can get a like minded group of people to join you on that journey.
This handbook is a collection of practical advice drawn from my experience, with concrete ideas for how you can get started with your own coding dojo. There is a catalogue of "Kata" coding exercises that you can try, and advice about how to choose one for your particular situation. There are many useful resources on the internet which you can use to augment your dojo, and some are reviewed here.
Kent Beck once said "I'm not a great programmer, I'm just a good programmer with great habits" . What are you doing to improve your coding habits? This is the book with the advice and encouragement you need: get together with some like minded people and hold a coding dojo! It's fun!
 page 97 of "Refactoring" by Martin Fowler
- How to Read This Book
- What is a Coding Dojo?
Section 1: Collaborative Games for Programmers
- Randori Variants
- Prepared Kata
- Code Retreat
- Playing with Constraints
- Tools for the Dojo
- Using Production code in the dojo
Section 2: Organizing a Coding Dojo
- Dojo Theory
- Finding Or Founding A Coding Dojo
- What happens at a Coding Dojo?
- Facilitating A Dojo meeting
- Handling Critical Voices
Section 3: Teaching & Learning In the Dojo
- Dojo Principles
- Using Code Katas to learn TDD
- TDD in terms of States and Moves
- Principles for Agile Automated Test Design
Section 4: Kata Catalogue
- Kata: Args
- Kata: Bank OCR
- Kata: Bowling Game
- Kata: FizzBuzz
- Kata: Game Of Life
- Kata: Gilded Rose
- Kata: Leap Years
- Kata: Medicine Clash
- Kata: Minesweeper
- Kata: Monty Hall
- Kata: Phone Numbers
- Kata: Poker Hands
- Kata: Potter
- Kata: Prime Factors
- Four Katas on a Racing-Car Theme
- Kata: Reversi
- Kata: Roman Numerals
- Kata: String Calculator
- Kata: Tennis
- Kata: Train Reservation
- Kata: Trivia
- Kata: Yatzy
- Further Reading
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.
C++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.
A Guide to Artificial Intelligence in HealthcareDr. Bertalan Mesko
Can we stay human in the age of A.I.? To go even further, can we grow in humanity, can we shape a more humane, more equitable and sustainable healthcare? This e-book aims to prepare healthcare and medical professionals for the era of human-machine collaboration. Read our guide to understanding, anticipating and controlling artificial intelligence.
Atomic KotlinBruce Eckel and Svetlana Isakova
For 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!
C++ Best PracticesJason Turner
Level up your C++, get the tools working for you, eliminate common problems, and move on to more exciting things!
Introducing EventStormingAlberto Brandolini
The deepest tutorial and explanation about EventStorming, straight from the inventor.
Ansible for DevOpsJeff Geerling
Ansible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
Everyday Rails - RSpecによるRailsテスト入門Junichi Ito (伊藤淳一), AKIMOTO Toshiharu, 魚振江, and Aaron Sumner
RSpecを使ってRailsアプリケーションに信頼性の高いテストを書く実践的なアドバイスを提供します。詳細で丁寧な説明は本書のオリジナルコンテンツです。また、説明には実際に動かせるサンプルアプリケーションも使用します。本書は2017年版にアップデートされ、RSpec 3.6やRails 5.1といった新しい環境に対応しています！さあ、自信をもってテストできるようになりましょう！
R Programming for Data ScienceRoger D. Peng
This 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.
The Hundred-Page Machine Learning BookAndriy Burkov
Everything you really need to know in Machine Learning in a hundred pages.
Continuous Delivery PipelinesDave Farley
This practical handbook provides a step-by-step guide for you to get the best continuous delivery pipeline for your software.
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...
All the Books of The Medical Futurist
6 BooksWe 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...
3 BooksBuy every PowerShell book from Adam Bertram at a 20% discount!
Cisco CCNA 200-301 Complet
4 BooksCe lot comprend les quatre volumes du guide préparation à l'examen de certification Cisco CCNA 200-301.
Software Architecture and Beautiful APIs
2 BooksThere is no better way to learn how to design good APIs than to look at many existing examples, complementing the Software Architecture theory on API design.
Linux Administration Complet
4 BooksCe 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...
Learn Git, Bash, and Terraform the Hard Way
3 BooksLearn 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.
9 Books-Bundle: Shut Up and Code!
9 Books"Shut up and code." Laughter in the audience. The hacker had just plugged in his notebook and started sharing his screen to present his super-smart Python script. "Shut up and code" The letters written in a white literal coding font on black background was the hackers' home screen background mantra. At the time, I was a first-year computer...
2 BooksDocker and Kubernetes are taking the world by storm! These books will get you up-to-speed fast! Docker Deep Dive is over 400 pages long, and covers all objectives on the Docker Certified Associate exam.The Kubernetes Book includes everything you need to get up and running with Kubernetes!
CCDE Practical Studies (All labs)
3 BooksCCDE lab