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class Module | |
def delegate(*methods, to:) | |
methods.each do |method_name| | |
define_method(method_name) do |*args| | |
to.send(method_name, *args) | |
end | |
end | |
end | |
end |
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class Director | |
attr_reader :training_team, :fellows | |
delegate :train_new_fellow, :train_new_fellow, to: training_team | |
delegate :size, :[], :<<, to: fellows | |
def initialize | |
@training_team = TrainingTeam.new | |
@fellows = [] | |
end |
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class Router | |
[:get, :post, :put, :patch, :delete].each do |method_name| | |
define_method(method_name) do | |
"This is a #{method_name} method" | |
end | |
end | |
end | |
router = Router.new | |
router.get #=> "This is a get method" |
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class Person | |
attr_accessor :name | |
def book_reading | |
"Elixir Cookbook" | |
end | |
end |
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Person = Class.new do | |
attr_accessor :name | |
def book_reading | |
"Elixir Cookbook" | |
end | |
end |
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Book = "Eloquent Ruby" | |
Module.const_get(:Book) #=> "Eloquent Ruby" | |
Module.const_set(:Book, "Ruby Science") #=> "Ruby Science" | |
Module.const_get(:Book) #=> "Ruby Science" | |
class Person | |
def name | |
"Sword Master" | |
end |
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class Module | |
def const_missing(constant) | |
"Constant #{constant} is really missing" | |
end | |
end | |
class House | |
end | |
Module.const_get(:House) #=> House |
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class Person | |
def initialize(n) | |
@name = n | |
end | |
def issues | |
family = "No Money" | |
relationship = "Complex" | |
friends = "No Friends" | |
binding |
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class Person | |
def name | |
"Name is Aboki" | |
end | |
alias_method :aboki_name, :name | |
def name | |
"Ikem Okonkwo" | |
end |
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class Person | |
def name | |
@name || "person" | |
end | |
def name=(val) | |
return if val == "person" | |
@name = val | |
end | |
end |