Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

iOS Objective-C Basics (Retired) Foundation Framework NSDictionary

Let's add the year of the album to the 'albumMutable' variable. Where the key is a NSString 'year' and the value is also a NSString '1969'.

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

What am I doing wrong?

1 Answer

it tells you to add the value '1969' as an NSString. so when adding it with setObject, you have to correctly identify it with the correct literal. i.e. @"1969"

Thanx David

No Problem. I did the exact same thing on that question. In the video they add it as an integer, and I didn't fully read the question properly. Easy mistake.