I’ve mentioned the Objective-C functional programming framework ReactiveCocoa and recently mentioned a tutorial on creating a weather that app demonstrating many functional programming basics with ReactiveCocoa.
Here’s a tutorial from Justin Dewind explaining how to utilize the helpers in ReactiveCocoa for creating signals to improve upon the standard Cocoa delegate pattern.
The tutorial goes through a complete example where a UIViewController is a delegate to UISearchBar and UISearchDisplayController, replacing the delegate pattern with one that uses signals.
Thanks to Atomic Object for the submission.
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