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zentetsukenz/ruby_sum_object_array.rb

Last active February 23, 2016 17:14
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Ruby sum array of object map reduce style
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ruby_sum_object_array.rb
Class A
attr_accessor :name, :value
def initialize
@value = rand(10)
@name = "Mr. #{@value}_#{rand(100)}"
end
end
a = Array.new(10).collect { |e| e = A.new }
a.map(&:value).inject(&:+)
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