Initializing Objective-C classes with sane initial state

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Because Objective-C has the concept of designated initializers , you have to ensure your classes are instantiated using sane initial state. Take for example a fictitious person class with the designated initializer initWithName: @implementation Person - ( id ) initWithName : ( NSString * ) name ; { self = [ super init ] ; if ( self ) { _name = name ; } return self ; } @end Now in a view controller…

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