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iOS Objective-C Basics (Retired) Foundation Framework NSDictionary


This code doesn't work I have no idea why.

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

1 Answer

Chris Shaw
Chris Shaw
26,676 Points

Hi Ricardo,

You're very close, instead of passing an NSString to setObject you've past an NSNumber object, simply add quotes around it like the below and you'll be good to go.

[albumMutable setObject:@"1969" forKey:@"year"];