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YusukeIwaki/implement_enumerable.rb

Created July 9, 2018 07:14
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implement_enumerable.rb
class Ten
include Enumerable
def initialize
end
def each(&block)
10.times.each(&block)
end
end
p Ten.new.map(&:to_s)
# => ["0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
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