changedmodel.changed The changed property is the internal hash containing all the attributes that have changed since its last

defaultsmodel.defaults or model.defaults() The defaults hash (or function) can be used to specify the default attributes for

pairs

hasmodel.has(attribute) Returns true if the attribute is set to a non-null or non-undefined value.

urlmodel.url() Returns the relative URL where the model's resource would be located on the server. If your models are located somewhere

hasChangedmodel.hasChanged([attribute]) Has the model changed since its last

changedAttributesmodel.changedAttributes([attributes]) Retrieve a hash of only the model's attributes that have changed since the

syncmodel.sync(method, model, [options]) Uses Backbone.sync

clearmodel.clear([options]) Removes all attributes from the model, including the id attribute. Fires a "change"

clonemodel.clone() Returns a new instance of the model with identical attributes.