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October 26, 2020 16:53
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Ruby - Métodos de instância VS de classe VS lambda
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class Calc | |
def sum(a, b) | |
a + b | |
end | |
def multiply(a, b) | |
a * b | |
end | |
end | |
calc = Calc.new | |
puts calc.sum(3, 3) # 6 | |
puts calc.multiply(3, 3) # 9 |
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class Calc | |
def self.sum(a, b) | |
a + b | |
end | |
def self.multiply(a, b) | |
a * b | |
end | |
end | |
puts Calc.sum(3, 3) # 6 | |
puts Calc.multiply(3, 3) # 9 |
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module Calc | |
class Sum | |
def self.call(a, b) | |
a + b | |
end | |
end | |
class Multiply | |
def self.call(a, b) | |
a * b | |
end | |
end | |
end | |
puts Calc::Sum.call(3, 3) # 6 | |
puts Calc::Multiply.call(3, 3) # 9 |
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module Calc | |
Sum = -> (a, b) { a + b } | |
Multiply = -> (a, b) { a * b } | |
end | |
puts Calc::Sum.call(3, 3) # 6 | |
puts Calc::Multiply.call(3, 3) # 9 |
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