Insert records with NSManagedObject and Xcode

Example code how to insert records / objects into a database with Xcode and the NSManagedObject.

How to remove duplicate records / objects from NSArray

Example code how to remove duplicate records / objects from NSArray and return a NSMutableArray with a unique record set.

How to get control class type from object using controlTextDidChange

Example code how to catch the active control id class while entering text using controlTextDidChange and isKindOfClass
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