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iOS Object-Oriented Objective-C Getting Oriented - Object-Oriented, That Is Review NSDictionaries and NSMutableDictionaries

Stefan Mach
Stefan Mach
3,691 Points
Posted by Stefan Mach
Stefan Mach
3,691 Points

Completely guessing

I don't even know what a pointer is. I believe we were told we would get to pointers, and now I am being told I was supposed to use one. Where was the syntax for an NSString in the context of a dictionary ever discussed prior to now? Please provide the correct code so I can note it in my notebook and move ahead. To anyone who is listening. Consider using what has been taught as what to contain within the challenges.

variable_assignment.mm 
NSDictionary *artDict = @{
   @"Artist": @"Dali",
   @"Title": @"The Ship",
  @"Medium": @"Oil Paint",
};

NSString *favoriteArtist;

favoriteArtist = [[artDict valueForKey:@"Artist"]stringValue];

2 Answers

Arman Arutyunov
Arman Arutyunov
21,900 Points
Arman Arutyunov
Arman Arutyunov
21,900 Points

You just don't need casting your value to string as it is already a string.

Correct code:

NSDictionary *artDict = @{
   @"Artist": @"Dali",
   @"Title": @"The Ship",
  @"Medium": @"Oil Paint",
};

NSString *favoriteArtist = [artDict valueForKey:@"Artist"];