跳到內容 跳到搜尋
方法
D

執行個體公開方法

duplicable?()

Singleton 執行個體不可複製

Class.new.include(Singleton).instance.dup # TypeError (can't dup instance of singleton
# File activesupport/lib/active_support/core_ext/object/duplicable.rb, line 57
def duplicable?
  false
end