Set

Set

ri

 ------------------------------------------------------------- Class: Set
      Set implements a collection of unordered values with no duplicates.
      This is a hybrid of Array's intuitive inter-operation facilities
      and Hash's fast lookup.
 
      Several methods accept any Enumerable object (implementing  each )
      for greater flexibility: new, replace, merge, subtract, |, 
		

* はてなダイアリーキーワード:Set