Ruby'i Tanıyalım

17 OCAK RUBY VE RUBY ON RAİLS İLE TANIŞMA ETKİNLİĞİ için yapmış olduğum Ruby tanıtım sunumu.

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2. Uğur "vigo" Özyılmazel
   vigobronx vigo
   

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3. webboxio
   http://webbox.io
   

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4. PROGRAMLAMA DİLİ
   

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6. Ruby, programcıları
   mutlu etmek üzere
   tasarlanmıştır!
   - Matz
   

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8. TÜRKÇE BİLİYOR!
   

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9. şehirler = %w[İstanbul Ankara Viyana Paris]
   gittiğim_şehirler = %w[İstanbul Viyana]
   puts "Gitmem gereken şehirler", şehirler - gittiğim_şehirler
   Gitmem gereken şehirler
   Ankara
   Paris
   

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10. Perl'den güçlü
    

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11. python'dan daha
    object orıented
    

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12. Herşey : nesne
    

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13. 5.class # => Fixnum
    5.class.superclass # => Integer
    5.class.superclass.superclass # => Numeric
    5.class.superclass.superclass.superclass # => Object
    5.class.superclass.superclass.superclass.superclass # => BasicObject
    

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14. Fixnum
    Integer
    Numeric
    Object
    Basic Object
    

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15. 5.methods # => [:to_s, :inspect, :-@, :+, :-, :*, :/, :div, :
    %, :modulo, :divmod, :fdiv, :**, :abs, :magnitude, :==, :===, :<=>, :
    >, :>=, :<, :<=, :~, :&, :|, :^, :
    [], :<<, :>>, :to_f, :size, :bit_length, :zero?, :odd?, :even?, :succ
    , :integer?, :upto, :downto, :times, :next, :pred, :chr, :ord, :to_i,
    :to_int, :floor, :ceil, :truncate, :round, :gcd, :lcm, :gcdlcm, :nume
    rator, :denominator, :to_r, :rationalize, :singleton_method_added, :c
    oerce, :i, :
    +@, :eql?, :remainder, :real?, :nonzero?, :step, :quo, :to_c, :real,
    :imaginary, :imag, :abs2, :arg, :angle, :phase, :rectangular, :rect,
    :polar, :conjugate, :conj, :between?, :nil?, :=~, :!~, :hash, :class,
    :singleton_class, :clone, :dup, :taint, :tainted?, :untaint, :untrust
    , :untrusted?, :trust, :freeze, :frozen?, :methods, :singleton_method
    s, :protected_methods, :private_methods, :public_methods, :instance_v
    ariables, :instance_variable_get, :instance_variable_set, :instance_v
    ariable_defined?, :remove_instance_variable, :instance_of?, :kind_of?
    , :is_a?, :tap, :send, :public_send, :respond_to?, :extend, :display,
    :method, :public_method, :singleton_method, :define_singleton_method,
    :object_id, :to_enum, :enum_for, :equal?, :!, :!
    =, :instance_eval, :instance_exec, :__send__, :__id__]
    

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16. TÜM SINIFLAR AÇIKTIR!
    

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17. class Fixnum
    def kere(n)
    self * n
    end
    end
    5.kere(5) # => 25
    5.kere(5).kere(2) # => 50
    

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18. class Fixnum
    def gün
    self * 24 * 60 * 60
    end
    def önce
    Time.now - self
    end
    def sonra
    Time.now + self
    end
    end
    Time.now # => 2015-01-12 12:30:37 +0200
    5.gün.önce # => 2015-01-07 12:30:37 +0200
    1.gün.sonra # => 2015-01-13 12:30:37 +0200
    

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19. PHP?
    

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20. konuşma dİlİne benzer
    

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21. 5.times do |i|
    puts "Ruby’i seviyorum, i = #{i}" if i > 2
    end
    # Ruby’i seviyorum, i = 3
    # Ruby’i seviyorum, i = 4
    

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22. meals = %w[Pizza Döner Kebab]
    print "Let’s eat here!" unless meals.include? "Soup"
    menü'de çorba yoksa
    yemeğİ burada YİYELİM!
    

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23. KOD ?
    

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24. varıable
    merhaba = "Dünya" # Değişken
    @merhaba # Instance Variable
    @@merhaba # Class Variable
    $merhaba # Global Variable
    MERHABA # Constant
    

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25. ARRAY
    [] # => []
    [1, "Merhaba", 2]
    # => [1, "Merhaba", 2]
    [[1, 2], ["Merhaba", "Dünya"]]
    # => [[1, 2], ["Merhaba", "Dünya"]]
    

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26. hash
    {} # => {}
    {:foo => "bar"} # => {:foo=>"bar"} # Eski
    {foo: "bar"} # => {:foo=>"bar"} # Yeni
    

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27. parantez?
    def merhaba kullanıcı
    "Merhaba #{kullanıcı}"
    end
    merhaba "vigo" # => "Merhaba vigo"
    

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28. SORU İŞARETİ
    [].empty? # => true
    ["vigo", "ezel"].include? "vigo" # => true
    user.admin? # => false
    

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29. ÜNLEM İŞARETİ
    isim = "vigo"
    isim.reverse # => "ogiv"
    isim # => "vigo"
    isim.reverse! # => "ogiv"
    isim # => "ogiv"
    

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30. zİNCİRLEME METHODLAR
    "vigo".reverse.reverse # => "vigo"
    ["v", "i", "g", "o"].join.reverse.split(//).join.reverse
    # => "vigo"
    

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31. İterasyon
    [1, "merhaba", 2, "dünya"].each do |eleman|
    puts eleman
    end
    [1, "merhaba", 2, "dünya"].each {|eleman| puts eleman}
    # 1
    # merhaba
    # 2
    # dünya
    

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32. İterasyon
    [1, 2, 3, 4, 5].select{|number| number.even?}
    # => [2, 4]
    [1, 2, 3, 4, 5].inject{|sum, number| sum + number}
    # => 15
    [1, 2, 3, 4, 5].map{|number| number * 2}
    # => [2, 4, 6, 8, 10]
    

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33. class
    class Person
    attr_accessor :age
    end
    vigo = Person.new
    vigo # => #
    vigo.age = 43
    vigo # => #
    vigo.age # => 43
    

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34. class
    class Person
    attr_accessor :age # Getter & Setter
    def initialize(name)
    @name = name
    end
    def greet
    "Hello #{@name}"
    end
    end
    vigo = Person.new "Uğur"
    vigo.age = 43
    vigo # => #
    vigo.greet # => "Hello Uğur"
    

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35. class
    class Person
    def initialize(name)
    @name = name
    end
    def age=(value)
    @age = value
    end
    def age
    @age
    end
    def greet
    "Hello #{@name}"
    end
    end
    vigo = Person.new "Uğur"
    vigo.age = 43
    Getter
    Setter
    attr_accessor :age
    }
    

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36. class
    class Person
    def is_human?
    true
    end
    end
    class Cyborg < Person
    def is_human?
    false
    end
    end
    vigo = Person.new # => #
    vigo.is_human? # => true
    t800 = Cyborg.new # => #
    t800.is_human? # => false
    

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37. module + MIXIN
    module Greeter
    def say_hello
    "Hello #{@name}"
    end
    end
    class Person
    include Greeter
    def initialize(name)
    @name = name
    end
    end
    vigo = Person.new "Uğur"
    vigo.say_hello # => "Hello Uğur"
    

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38. hazırım!
    

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39. İLERİ SEVİYE KONULAR
    Meta Programming
    Monkey Patching
    Block & Proc & Lambda
    Functional Programming
    

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40. kaynaklar
    http://www.ruby-doc.org/
    http://vigo.gitbooks.io/ruby-101/
    http://tryruby.org/
    http://rubykoans.com/
    https://rubymonk.com/
    https://www.ruby-lang.org/en/documentation/quickstart/
    https://www.ruby-lang.org/en/documentation/ruby-from-other-languages/
    

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41. fotoğraflar
    http://www.sitepoint.com/
    https://500px.com/photo/72621187/let-me-fly-by-kshitij-bhardwaj
    http://www.gratisography.com/
    

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