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HELLO GHENT!

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B - AT = G

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PIRATES

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RUBY FOR BIPOLAR PROGRAMMERS

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$ whoami

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@janogonzalez

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@hop_in

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PIRATES IN CHILE

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XVI CENTURY

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SIR FRANCIS DRAKE

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HERO OR PIRATE?

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AKA EL DRAKE

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6.5M$ REWARD

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SIR FRANCIS DRAKE

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SIR FRANCIS DRAKE

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HIDDEN TREASURES

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ISLA MOCHA

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MOCHA DICK

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XXI CENTURY

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NEW PIRATES

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NEW PIRATES

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NEW PIRATES

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☑ PIRATES ☐ RUBY

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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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EXPRESS YOURSELF

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EXPRESS YOURSELF File.open('my.txt').each do |line| puts line if line =~ /jano/ end

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THE HIDDEN TRUTH

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HIDDEN TRUTH $ irb > puts 'Ahoy World!' # Ahoy World! # => nil

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HIDDEN TRUTH > self.class # => Object

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HIDDEN TRUTH > Object.included_modules # => [Kernel]

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HIDDEN TRUTH > Kernel.methods.include? :puts # => true

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THE MOST HIDDEN TRUTH

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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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EXAMPLE case account_type when :premium then # do stuff when :standard then # do stuff when :personal then # do stuff end

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EXAMPLE class AccountAccount def initialize # do stuff end def execute(context) # do stuff end end

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EXAMPLE class PersonalFactory 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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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

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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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कഁ཭

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SHU कഁ཭

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HA कഁ཭

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RI कഁ཭

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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://en.wikipedia.org/wiki/File: 1590_or_later_Marcus_Gheeraerts,_Sir_Francis_Drake_Buckland_Abbey, _Devon.jpg • http://en.wikipedia.org/wiki/File:New_Albion._English_galleon_ %22Golden_Hinde %22_by_Sir_Francis_Drake._Oil_on_canvas._60_x_90_cm..jpg • http://en.wikipedia.org/wiki/File:DRAKE_1577-1580.png • http://www.vivimoslanoticia.cl/wp-content/uploads/2013/09/Pel %C3%ADculas-piratas.jpg • http://radiopolar.com/images/noticias/20101127174025.jpg • http://upload.wikimedia.org/wikipedia/commons/a/aa/Isla_Mocha_1.jpg • http://www.todayifoundout.com/wp-content/uploads/2011/12/Moby- Dick-3.jpg