I cannot f开发者_开发百科ind any information on Generic Programming in Javascript. So I assume it is not supported.
I have three models that have a polymorphic relationship between them: Category, Sector and Course. A course can belong to either a category or a sector, not to both.
I know Java forbids inheriting from multiple classes and allows implementing any number of interfaces.However, while inte开发者_开发百科rfaces are good for polymorphism, they cannot contain any actual
I\'m about to take the final exam in my very first object-开发者_JAVA百科oriented programming class and I still don\'t understand something about the concept of polymorphism.
Let\'s assume I have a User class and two subclasses Employee and Customer. I implemented this hierarchy as a table-per-hierarchy in DB with a column for specifying the type of user. I need to return
Is there a syntax or workaround to constrain a generic type parameter to any of a range of types? I am aware that you can constrain a type to be all of a range of types (ie AND logic):
I have a polymorphic association - \"address\" (belongs to \"addressable\"). Amongst others, it s开发者_JS百科erves the \"shop\" model.
I have a question about Haskell polymorphism. As I\'ve learned, there are two types of polymorphism: Para开发者_开发问答metric: where you do not specify the input type.
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I\'ve searched for questions, looking at forums, books, etc. I can recognize a polymorphic behavior of methods, and there are lots of simple examples when an invoked method is decided in compile or ru
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