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  1. def show_numbers(params)
  2.   list = %w(18 22 11 73 91 38 24 17)
  3.  
  4.   ### 集合確定部分
  5.   filtered_list = []
  6.   list.each do |element|
  7.     case params
  8.       when :aho
  9.         if element.include?('3') || element.to_i.modulo(3) == 0
  10.           filtered_list << element
  11.         end
  12.       when :even
  13.         if element.to_i.even?
  14.           filtered_list << element
  15.         end
  16.       when :odd
  17.         if element.to_i.odd?
  18.           filtered_list << element
  19.         end
  20.       else
  21.         filtered_list << element
  22.     end
  23.   end
  24.  
  25.  
  26.   ### 集合表示部分
  27.   puts '<html>'
  28.   puts '  <ul>'
  29.   filtered_list.each do |element|
  30.     puts "    <ui>#{element}</ui>"
  31.   end
  32.   puts '  </ul>'
  33.   puts '</html>'
  34. end
  35.  
  36. #### :even
  37. show_numbers(:even)
Success #stdin #stdout 0.02s 9784KB
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<html>
  <ul>
    <ui>18</ui>
    <ui>22</ui>
    <ui>38</ui>
    <ui>24</ui>
  </ul>
</html>
https://ideone.com/nAsAKZ
イテレーターパターン code5
language:
Ruby (ruby 2.5.5)
created:
8 years ago
visibility:
secret

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