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TWO PROGRAMMERS IN ONE
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@janogonzalez
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No content
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A TALE OF TWO DEVELOPERS
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HACKER V/S THINKER
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HACKER
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GET THINGS DONE
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FAST
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HACKS
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MAINTENANCE NIGHTMARE
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NEEDS MORE DUCT TAPE
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THINKER
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THINKS ABOUT ABSTRACTIONS
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THINKS ABOUT MAINTAINABILITY
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TOO MANY ABSTRACTIONS
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ANALYSIS PARALYSIS
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NEEDS MORE LAYERS
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MY HISTORY
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A TRILOGY OF MOVIES
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THE HACKER YEARS
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THE HACKER YEARS
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THE LEARNING YEARS
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THE UML YEARS
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THE UML YEARS
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THE HACKER WAS GONE
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UML, RUP, GoF, XML, ETC.
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STOCKHOLM SYNDROME
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EVOLUTION?
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THE ONE TRUE WAY™
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THE PATH?
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FEAR
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I WAS SO WRONG!
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EVERYDAY LIFE IS THE PATH
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ENTER RUBY
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SMALLTALK IN PERL’S DISGUISE
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HAPPY THINKER
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THINKER class AccountProtectionProxy def initialize(real_account, owner) @subject = real_account @owner = owner end ! def method_missing(name, *args) check_access @subject.send(name, *args) end ...
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OMG! GoF NEVER WAS SO EASY
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HAPPY HACKER
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HACKER $1 if str ~= /(foo)+/
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ONE LINERS FTW!
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HACKER ❤ THINKER
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LET’S WORK TOGETHER
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HARMONY
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HARMONY (1..42).select(&:even?). map { |n| n * 2 }. reduce(&:*)
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THE PATH
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THE PATH IS NO PATH
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THE PATH
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WORKING TOGETHER
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HACKER
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EXPLORE NEW TERRITORY
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THINKER
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FIND ACCEPTANCE CRITERIA
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DEFINE COMPONENTS
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BALANCE
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DELIVER VALUE V/S DIMINISH TECHNICAL DEBT
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CREATIVITY V/S STANDARDIZATION
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EXAMPLE
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CASE STATEMENT V/S FACTORY + COMMANDS
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CASE STATEMENT
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EXAMPLE case account_type when :premium then # do stuff when :standard then # do stuff when :personal then # do stuff end
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FACTORY + COMMANDS
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EXAMPLE class PremiumAccount def initialize # do stuff end ! def execute(context) # do stuff end end
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EXAMPLE class AccountFactory def self.create(type) name = "#{type.capitalize}Account" klass = Kernel.const_get(name) klass.new end end
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EXAMPLE AccountFactory .create(account_type) .execute(context)
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THE BEST APPROACH?
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IMPLICIT V/S EXPLICIT
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CLARITY V/S DRY
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CLARITY V/S SRP
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NOW V/S FUTURE
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MY HUMBLE ADVICE
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LEARN ABOUT BEST PRACTICES
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DON’T FOLLOW BLINDLY YOUR FUNCTIONAL GURU
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DON’T FOLLOW BLINDLY YOUR OO GURU
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TESTS + REFACTORING
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HOW TO IMPROVE IF YOU ARE A…
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HACKER
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LEARN ABOUT OOP & PATTERNS
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TRY IMMUTABILITY & SEQUENCES
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DO SEPARATE RESPONSIBILITIES
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THINKER
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LEARN ABOUT ONE LINERS
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TRY CODE GOLF
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DO EVIL STUFF
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EVERYONE
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READ A LOT OF CODE
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WRITE A LOT OF CODE
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ONE LAST ADVICE
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守破離
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SHU 守破離
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HA 守破離
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RI 守破離
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ANTIPATTERN: ETERNAL SHU
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ANTIPATTERN: START IN HA
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CONCLUSIONS
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RUBY GIVES YOU FREEDOM
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LETS YOU STRIVE FOR BALANCE
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AVOID CARGO CULT
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GOOD ADVICE V/S LAWS
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THERE IS NO TRUE PATH
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IF YOU MEET THE BUDDHA IN THE ROAD, KILL HIM!
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FOLLOW YOUR ❤
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THANK YOU! ❤
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IMAGES ! • http://commons.wikimedia.org/wiki/File:Yin_yang.svg • http://upload.wikimedia.org/wikipedia/commons/archive/f/ f4/20050917122925%21Janus-Vatican.JPG