idAttributemodel.idAttribute A model's unique identifier is stored under the id attribute. If you're directly communicating

extendBackbone.Model.extend(properties, [classProperties]) To create a Model class of your own, you extend Backbone.Model

cidmodel.cid A special property of models, the cid or client id is a unique identifier automatically assigned to all models

isValidmodel.isValid() Run validate to check the model

isNewmodel.isNew() Has this model been saved to the server yet? If the model does not yet have an id, it is considered

previousmodel.previous(attribute) During a "change" event, this method can be used to get the previous value of a changed

previousAttributesmodel.previousAttributes() Return a copy of the model's previous attributes. Useful for getting a diff between

constructor / initializenew Model([attributes], [options]) When creating an instance of a model, you can pass in the initial values

urlRootmodel.urlRoot or model.urlRoot() Specify a urlRoot if you're using a model outside of a collection, to

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