ruby ile tanışma!
TRANSCRIPT
Uğur "vigo" Özyılmazel
vigobronx vigo
PROGRAMLAMA DİLİ
Ruby, programcıları mutlu etmek üzere tasarlanmıştır!
- Matz
TÜRKÇE BİLİYOR!
şehirler = %w[İstanbul Ankara Viyana Paris] gittiğim_şehirler = %w[İstanbul Viyana]
puts "Gitmem gereken şehirler", şehirler - gittiğim_şehirler
Gitmem gereken şehirler Ankara Paris
Perl'den güçlü
python'dan daha object orıented
Herşey : nesne
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
Fixnum
Integer
Numeric
Object
Basic Object
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, :numerator, :denominator, :to_r, :rationalize, :singleton_method_added, :coerce, :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_methods, :protected_methods, :private_methods, :public_methods, :instance_variables, :instance_variable_get, :instance_variable_set, :instance_variable_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__]
TÜM SINIFLAR AÇIKTIR!
class Fixnum def kere(n) self * n end end
5.kere(5) # => 25 5.kere(5).kere(2) # => 50
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
PHP?
konuşma dİlİne benzer
5.times do |i| puts "Ruby’i seviyorum, i = #{i}" if i > 2 end
# Ruby’i seviyorum, i = 3 # Ruby’i seviyorum, i = 4
meals = %w[Pizza Döner Kebab] print "Let’s eat here!" unless meals.include? "Soup"
menü'de çorba yoksa yemeğİ burada YİYELİM!
KOD ?
varıablemerhaba = "Dünya" # Değişken @merhaba # Instance Variable @@merhaba # Class Variable $merhaba # Global Variable MERHABA # Constant
ARRAY[] # => []
[1, "Merhaba", 2] # => [1, "Merhaba", 2]
[[1, 2], ["Merhaba", "Dünya"]] # => [[1, 2], ["Merhaba", "Dünya"]]
hash{} # => {} {:foo => "bar"} # => {:foo=>"bar"} # Eski {foo: "bar"} # => {:foo=>"bar"} # Yeni
parantez?def merhaba kullanıcı "Merhaba #{kullanıcı}" end
merhaba "vigo" # => "Merhaba vigo"
SORU İŞARETİ[].empty? # => true ["vigo", "ezel"].include? "vigo" # => true
user.admin? # => false
ÜNLEM İŞARETİisim = "vigo" isim.reverse # => "ogiv" isim # => "vigo"
isim.reverse! # => "ogiv" isim # => "ogiv"
zİNCİRLEME METHODLAR"vigo".reverse.reverse # => "vigo"
["v", "i", "g", "o"].join.reverse.split(//).join.reverse # => "vigo"
İterasyon[1, "merhaba", 2, "dünya"].each do |eleman| puts eleman end
[1, "merhaba", 2, "dünya"].each {|eleman| puts eleman}
# 1 # merhaba # 2 # dünya
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]
classclass Person attr_accessor :age end
vigo = Person.new vigo # => #<Person:0x007f98820e6ab0>
vigo.age = 43 vigo # => #<Person:0x007f98820e6ab0 @age=43> vigo.age # => 43
classclass 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 # => #<Person:0x007fc2810436c0 @name="Uğur", @age=43> vigo.greet # => "Hello Uğur"
classclass 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
Setterattr_accessor :age}
classclass Person def is_human? true end end
class Cyborg < Person def is_human? false end end
vigo = Person.new # => #<Person:0x007faa7291d268> vigo.is_human? # => true
t800 = Cyborg.new # => #<Cyborg:0x007faa7291cbd8> t800.is_human? # => false
module + MIXINmodule 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"
hazırım!
İLERİ SEVİYE KONULAR
Meta Programming
Monkey Patching
Block & Proc & Lambda
Functional Programming
kaynaklarhttp://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/
fotoğraflar
http://www.sitepoint.com/ https://500px.com/photo/72621187/let-me-fly-by-kshitij-bhardwaj
http://www.gratisography.com/