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Cocoa with Love: Singletons, AppDelegates and top-level data.

http://cocoawithlove.com/2008/11/singletons-appdelegates-and-top-level.html

february 2010 ‧ cocoa cocoa-touch designpatterns objective-c ‧ open in karakeep

by Matt Gallagher ‧ Cocoa with Love ‧ saved copy from 2026.03.03

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page description:

If you require only a single instance of an object in your application, where should it go? How should you control and manage it? Here are some different approaches, their implementations, their strengths and their weaknesses.
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