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William Webster
September 26, 2014
Programming
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Perth Code Dojo 2
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William Webster
September 26, 2014
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Transcript
Perth Code Dojo 2 @willwebst #CodeDojo
Check-In ➔ Your name ➔ What you do (at work)
➔ A random fact about yourself
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 10,000 hrs rule - Malcolm Gladwell
Dojo Rules ➔ Paired Programming ➔ Simple Design ➔ Test
Driven Development ➔ 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
Supermarket Checkout Implement a check out that handles the following
items and returns a running total Product Cost Special Apples 50 cents Buy 2 get 3rd free Cherries 5 dollars Mangos 3 dollars
Objective Make the checkout be extendable. So it can handle
multiple discount and be flexible for the future.
Scenario 1 Implement a check out that handles the following
items and returns a running total Product Cost Special Apples 50 cents Buy 2 get 3rd free Cherries 5 dollars Mangos 3 dollars
Begin! 25 mins
Stop! 5 mins
Scenario 2 Buy 3 cherries and save 7.50 Product Cost
Special Apples 50 cents Buy 2 get 3rd free Cherries 5 dollars Buy 3 save 7.50 dollars Mangos 3 dollars
Begin! 25 mins
Stop! 5 mins
Scenario 3 20 % off Cherries Bonus: Apply a 80%
discount. What happens to your total balance?
Begin! 25 mins
Stop! 5 mins
Mini Retro How did you find the exercise? What did
you learn? Share your solution!
Thank you sponsors! Code - http://github.com/burlistic Slides - http://speakerdeck.com/burlistic @willwebst
Next session the last monday of the month