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I have a REST Json API that returns a list "logbooks". There are many types of logbooks that implement different but similar behavior. The server side implementation of this on the Database layer is a sort of Single Table Inheritance, so each JSON representation of a logbook contains its "type" : [ {"type": "ULM", "name": "My uml logbook", ... , specific_uml_logbook_attr: ...}, {"type": "Plane", "name": "My plane logbook", ... , specific_plane_logbook_attr: ...} ] I would like to replicate this server model on the client side, so I have a base Logbook class and multiple logbook sub classes : class Logbook extends Backbone.Model class UmlLogbook extends Logbook class PlaneLogbook extends Logbook ... My Backbone.Collection is a set of Logbook models that i use to query the JSON API : class LogbookCollection extends Backbone.Collection model: Logbook url: "/api/logbooks" When I fetch the logbook collection, is there a way to cast each Logbook to its corresponding sub class (based on the JSON "type" attribute) ?

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