Global Day of Coderetreat: Istanbul Event 2014

These are the slides we used during Istanbul/Turkey event of Global Day of Coderetreat on November 15th, 2014.

Transcript

1. celebrating passion and craftsmanship November 15, 2014 Global Day of Coderetreat
2. Organizators Agile Turkey established in 2008
 as a nonprofit organization. It aims to enhance IT project success in the Turkish market by expanding the world wide proven Agile Methodologies’ usage. Facilitators Lemi Orhan Ergin Umut Işık
3. like to work alone feel safe to work on confort zone have to focus on daily work skip writing tests cannot find time to experiment not willing to learn new practices do not think about design focus on gettings things done over-engineer do not refactor Developers
4. have to improve their craft Developers
5. is the best way how we improve our craft Practicing
6. How to Practice Challenge Repeat Feedback again and again and again and again
7. How to Practice No Pressure do not complete the task
 but master it
8. practicing mastering Code Retreat is about and
9. writing the perfect code Code Retreat is about
10. learning through pairing extending your confort zone no pressure of daily work experimenting learning new practices thinking deeply about design building structures simple developing whenever required refactoring Code Retreat is about
11. 1 day coding 45 minutes sessions Pair programming Test first development Different partners on each session Different constraints Format
12. Schedule Retrospective Break Closing Ceramony Coding 45 10 5 5 5 5 5 10 10 10 10 15 45 45 45 45 45 Lunch
13. Code generation is not important Generate code by thinking the design Focus on naming test cases Focus on Red/Green/Refactor cycle Why Repeating?
14. You are not your code Learn to go slower Focus on being better Do not think about finishing It’s all about practicing Why Deleting?
15. Language agnostic Do not try to complete Focus on practicing Write code than open to accept change Follow 4 rules of simple design Delete code after each session Have fun Principles
16. History The idea was spawned at CodeMash Conference’09 The owners of the idea Gary Bernhardt Patrick Welsh Nayan Hajratwala Corey Haines First was held on January 24, 2009 Corey Haines https://www.flickr.com/photos/charliekilo/7717370426
17. Global Day of Code Retreat 6 continents 137 cities 20 timezones 2000+ developers 31 hours of coding coderetreat.org Coderetreat Community Network November 15, 2014 https://www.flickr.com/photos/stef3d/4560661663
18. Global Day of Code Retreat Thanks to hundreds of hosts and facilitators worldwide coderetreat.org Coderetreat Community Network November 15, 2014 https://www.flickr.com/photos/stef3d/4560661663
19. This year's Global Day of Coderetreat supports CoderDojo Any funds not used to support GDCR will go to CoderDojo coderdojo.com
20. https://www.youtube.com/watch?v=H04wb0ESD4o
21. CoderDojo is a global volunteer-led community of free programming clubs for young people between 7 and 17. CoderDojo gives young people all over the world better access to the “Magic behind the technology” that surrounds us and touches almost everything that we do in our lives. coderdojo.com
22. Today, there are over 500 Dojos spread across 48 countries from Ireland, to the USA, to Japan, and even Nigeria. coderdojo.com
23. Within CoderDojo there is a focus on developing creativity, a sense of community, peer learning skills, mentoring and self led learning with an emphasis on openness and showing how coding can be a force for positive change. coderdojo.com
24. We cannot make it without their support
25. A software company and community of passionate individuals whose purpose is to revolutionise software creation and delivery, while advocating for positive social change. www.thoughtworks.com
26. GitHub is the best place to share code with friends, co-workers, classmates, and complete strangers. Over seven million people use GitHub to build amazing things together. www.github.com
27. www.dnsimple.com DNSimple is a hosted DNS service that you can use to manage your domains.
28. www.sony.com.tr www.acm-software.com
29. Simple Design Simple design in one that is easy to change. We don’t know exactly what is going to need to change We’ll never be more ignorant than we are at this moment https://leanpub.com/4rulesofsimpledesign
30. Simple Design Tests pass 4 Rules of “Tests pass” can be a significant factor in making changes. If you have to ask how fast your test suite should be, it should be faster 1
31. Simple Design Express Intent 4 Rules of Paying attention to the names and how your code expresses itself is the key. 2
32. Simple Design No Duplication (DRY) 4 Rules of It’s not about code duplication, it’s about knowledge duplication. Don’t repeat yourself. Every piece of knowledge should have one and only one representation. 3
33. Simple Design Small 4 Rules of Has fewer classes, modules, packages. Any not- used code should be deleted. You should also check missing or duplicate abstractions. Over- extraction should also be not allowed. 4
34. http://blog.thecodewhisperer.com/2013/12/07/putting-an-age-old-battle-to-rest “Putting an Age-Old Battle to Rest” by Joe Rainsberger The Simple Design Dynamo
35. TDD Write exactly one new test 1 2 Run the test to make sure it fails 3 Write least amount of code to make the test pass 4 Refactor to remove duplication 5 Repeat the process Test Driven Development Test Driven Design Test First Development
36. Zero-player game Cellular automation system Devised by John Horton Conway Evolution is determined by initial state Each cell can be alive or dead Conway’s Game of Life Problem to solve:
37. Each cell has 8 neighbours and follows 3 rules 1 2 3 4 5 6 7 8
38. Any live cell with fewer than 2 live neighbours dies of loneliness Rule 1
39. Any live cell with more than 3 live neighbours dies of overcrowding Rule 2
40. Any dead cell with exactly 3 live neighbours comes to life of warmth Rule 3
41. Avoid to use primitives Avoid to use conditional conditions (if, ?:, switch) Avoid to use loops (while, for) All methods return void Max 5 lines of code per method Verbs instead of nouns Ping pong programming Mute ping pong programming Swap computers Do not use mouse Variations
42. ENJOY remember whatever you do do not forget to https://www.flickr.com/photos/fraserspeirs/3394902061 Joe O'Brien and Jim Weirich while doing ruby code review
43. sessions let the begin We select 6 activities amoung the activities list after checking TDD and pair programming experiences of the attendees. Every coderetreat has its own set of activities.
44. No constraints Do your best
45. Ping-pong pair programming
46. No primitives Use only immutable objects
47. No primitives No conditionals Max 5 lines of code
48. No way to return any value Verbs instead of Nouns
49. Mute ping-pong
50. What, if anything, did you learn today? What, if anything, surprised you today? What, if anything, will you do differently? closing
51. The photo on the first slide is taken by Mirza Abdurrahim Çetin. It is adapted as allowed by the license CC BY-NC 2.0 https://www.flickr.com/photos/abdurrahimcetin/5773149987 https://creativecommons.org/licenses/by-nc/2.0