Ruby Coding Dojo

A Coding Dojo is an environment for coding practice. It’s where developers get together to code, learn and have fun. The ultimate goal of the Coding Dojo is to share knowledge and improve the technical and social skills required in software development, including Pair Programming, Test-Driven Development and Refactoring.

Transcript

1. Ruby Coding Dojo RailsConf 2014
2. Carlos Souza @caike David Rogers @al_the_x
3. ! Developers To All beginner, intermediate and expert.
4. Technology! … in the open source community. Gets Better
5. every week to the Ruby on Rails repository ~100 commits
6. Getting Better not enough time invested in practice. We Are Not
7. – Bruce Lee “Practice, yo.”
8. WORK PRACTICE !=
9. DOJO ಓ ৔ A Japanese term for place of the way.
10. KATAs “Detailed choreographed patterns of movements praticed either solo or in pair.” Dave Thomas @PragDave
11. KATAs “Detailed choreographed patterns of movements praticed either solo or in pair.” Test Driven! Development
12. KATAs “Detailed choreographed patterns of movements praticed either solo or in pair.” Pair! Programming
13. • Randori • Prepared • Code Retreat KATAs
14. RANDORI
15. RANDORI 1 Computer + 1 Projector + Audience (5-15 people) + Pair Rotation
16. PREPARED
17. PREPARED Watch someone perform a Kata that has been previously worked on.
18. CODE RETREAT A day-long event where you work on the same problem, pair programming with different people and switching languages. Corey Haines @CoreyHaines http://coderetreat.org
19. PREPARED KATA
20. Calculator • addition • accept 2 numbers • return result
21. BREAK
22. PROBLEM #1 • Groups of 3 • 3:00 minute rotation
23. ETIQUETTES • RED GREEN REFACTOR! • No talk on RED • If you are not coding, keep quiet. • If you have a idea, show it with code. • NO VOODOO: keep it simple. • If you are stuck, ask for help.
24. Calculator • 1 operation: Addition • takes n numbers • don’t use inject
25. require 'minitest/unit' require 'minitest/autorun' ! class CalculatorTest < MiniTest::Unit::TestCase ! def test_adds_two_numbers end ! end while true; do ruby test.rb; sleep 2; done test.rb bash
26. ETIQUETTES • RED GREEN REFACTOR! • No talk on RED • If you are not coding, keep quiet. • If you have a idea, show it with code. • NO VOODOO: keep it simple. • If you are stuck, ask for help.
27. RETROSPECTIVE
28. PROBLEM #2 • Groups of 3 • 3:00 minute rotation
29. StringCalculator • 1 operation: Addition • takes Strings! ! calc.add('one', 'two')
30. RETROSPECTIVE
31. RESOURCES
32. RESOURCES meetup.com
33. RESOURCES codeschool.com