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Perth Code Dojo 5
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William Webster
November 27, 2014
Technology
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Perth Code Dojo 5
William Webster
November 27, 2014
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Transcript
Perth Code Dojo 5 @willwebst #CodeDojo
Check-In ➔ Your name ➔ What do you want for
Christmas? ➔ Do you believe in Santa?
Code Dojo Format A Coding Dojo is a coding session
centered around a programming challenge. The dojo provides a safe place to learn and experiment away from the pressures of business delivery. All programmers of varying skill levels meet as equals to learn and share.
Software Craftsmanship “Deliberate practice is closely related to the attained
level of performance of many types of experts” - Dr. K. Anders Ericsson
Dojo Rules ➔ Paired Programming ➔ Simple Design ➔ Test
Driven Development ➔ Refactoring
XP Practices ➔ Test Driven Design ◆ Red - Green
- Refactor ◆ Keep the unit small ◆ DESIGN / Design by contract ◆ Flow
XP Practises ➔ Benefits ◆ More extensible and maintainable solutions
◆ Quality improvements / cost of defects ◆ Automated builds ◆ Peer reviews / pairing ◆ Confidence to refactor ◆ Coverage ◆ Legacy code
XP Practises ➔ Disadvantages / challenges ◆ Requires buy in
◆ Learning curve ◆ Purest approach ◆ Overly loose coupling ◆ Not always productive ◆ Potential overconfidence ◆ Tests require maintenance / refactoring
Pomodoro ➔ Pomodoro Technique ◆ 25 mins on, 5 mins
off ◆ http://tomatoi.st/perthcodedojo ➔ Four iterations
Retro & Pizza Closing with Pizza and a mini retrospective
➔ Share solutions on the big screen ➔ Discuss challenge / approach ➔ Feedback on the dojo
Polite Notice Please respect each others commitment. During a Pomodoro.
➔ No Facebook ➔ Mobile phones ➔ Etc.
Have Fun! Most importantly have fun! ➔ Drinks are available
- help yourselves
Objective Given a word list, containing one word per line.
Find all the combinations of each word which are anagrams.
Objective Examples: Webster - bestrew Software - forwaste
Objective Think about the algorithm approach • Simplest • Fastest
Test First!
Find Anagrams http://codekata.com/data/wordlist.txt Find all the anagrams contained within the
list for each word
Begin! 25 mins
Stop! 5 mins
Remove Acronyms Remove any non-words • ACB • BBSes •
BMW's
Begin! 25 mins
Stop! 5 mins
Remove Non-English Remove any words which contain non-UFT8 characters •
étagères • Ångströms • Österreich's Remove an names - starting with uppercase
Begin! 25 mins
Stop! 5 mins
Thank You - Dave Thomas Credit goes to @PragDave /
Ruby community for this Katak Check out - http://codekata.com/ Great source for Code Katas.
Thank you sponsors! Code - http://github.com/burlistic Slides - http://speakerdeck.com/burlistic @willwebst
Mini Retro How did everyone find the exercise? Small break
for Christmas. See you in 2015! Next up - Decoupling Logic from the UI