Cocoa provides two classes for smooth handling of errors: NSError and NSResponder, which allow programs to dispatch an error object and respond to it from key points in the application. Only by knowing the underpinnings of each class is it possible to write truly user-friendly apps.

September 25, 2012
URL:http://www.drdobbs.com/architecture-and-design/handling-errors-in-ios-and-os-x-with-coc/240007940

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