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 trialANDREA HEMPHILL
14,484 Pointshow add values from NSArray to NSMutableDictionary using objectAtIndex?
The keys to the values has to 'customer', 'size', 'style' and 'color'
NSArray *shoeOrder = @[@"Charles Smith",@9.5,@"loafer",@"brown"];
NSString *customer = [shoeOrder objectAtIndex:0];
NSNumber *size = [shoeOrder objectAtIndex:1];
NSString *style = [shoeOrder objectAtIndex:2];
NSString *color = [shoeOrder objectAtIndex:3];
NSMutableDictionary *shoeOrderDict = [[NSMutableDictionary alloc]initWithObjectsAndKeys:@"customer",@"size",@"style",@"color",nil];
1 Answer
miikis
44,957 PointsHi Andrea,
So you got the shoeOrder array correct. All this Challenge is asking you to do from there is to create a new instance of NSMutableDictionary called shoeOrderDict ...
NSMutableDictionary *shoeOrderDict = [[NSMutableDictionary alloc]init];
... and then assign the appropriate key — from the keys provided — to the corresponding value from the shoeOrder array, like this:
shoeOrderDict[@"customer"] = [shoeOrder objectAtIndex: 0];
shoeOrderDict[@"size"] = [shoeOrder objectAtIndex: 1];
shoeOrderDict[@"style"] = [shoeOrder objectAtIndex: 2];
shoeOrderDict[@"color"] = [shoeOrder objectAtIndex: 3];