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iOS Objective-C Basics (Retired) Foundation Framework NSDictionary

Posted by Jorge Decuir
Jorge Decuir
2,307 Points

Initializing with Dictionary

I had a typo last time so that was the problem, but now at the second part of challenge this is what is happening. I'm supposed to initialize an NSMutableDictionary with the values from the first:

NSDictionary *album = @{@"title":@"Abbey Road",@"artist":@"The Beatles"};

NSMutableDictionary *albumMutable = [[NSMutableDictionary alloc] initWithDictionary:album];

But i get an error, so what is the correct way??

2 Answers

Jorge Decuir
Jorge Decuir
2,307 Points

Thanks yes i solved it! i was referring to the video lessons so i had to look for dictionaryWithDictionary to do so, but thanks a lot Preston!

Stone Preston
Stone Preston
42,016 Points
Stone Preston
Stone Preston
42,016 Points

your code looks correct, however try using the NSMutableDictionary dictionaryWithDictionary convenience constructor instead of using alloc/initWithDictionary. I think the challenge may be expecting you to use the convenience constructor.