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iOS Objective-C Basics (Retired) Foundation Framework NSDictionary

Egor Bakulin
Egor Bakulin
547 Points

Where is the problem ?

HI i got this code in challenge but it shoos that the value your in incorrect ? I tried different ways but it still dont work ?

Where i s the problem?!

NSDictionary *album =@{@"title" :@"Abbey Road",@"artist":@"The Beatles"}; NSMutableDictionary *albumMutable =[NSMutableDictionary dictionaryWithDictionary:album]; [albumMutable setObject:@1969 forKey:@"year"];

2 Answers

Robert Bojor
Robert Bojor
Courses Plus Student 29,439 Points

Hi Egor,

The correct method to call is setValue:forKey: in order to add the new value to the mutable array. Also the challenge said to add the key and value as NSString, you forgot the " around 1969.

The code that passes the challenge is below:

NSDictionary *album =@{@"title" :@"Abbey Road",@"artist":@"The Beatles"};
NSDictionary *albumMutable = [NSMutableDictionary dictionaryWithDictionary:album];
[albumMutable setValue:@"1969" forKey:@"year"];