class Set (Ruby 3.3 リファレンスマニュアル)[edit] 要約 集合を表すクラスです。要素の間に順序関係はありません。 目次 特異メソッド [] new インスタンスメソッド & + - << == === ^ | add add? classify clear clone collect! delete delete? delete_if difference disjoint? divide dup each empty? filter! flatten flatten! include? inspect intersect? intersection keep_if length map! member? merge proper_subset? proper_superset? reject! replace reset select! size subset? subtract superset? to_a to_s un
