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@m6mmsf(Masahito Nagayama)

【Ruby】奇数か偶数かを判断するメソッド

Posted at
  • Inetger#odd?は奇数であればtrue、そうでなければfalseを返します。
  • Inetger#even?は偶数であればtrue、そうでなければfalseを返します。

奇数かどうか

5.odd? =>  true
10.odd? => false

偶数かどうか

10.even? => true
5.even? => false
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