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iOS Object-Oriented Objective-C Memory, Arrays and Loops, Oh My! Review Dictionaries and Arrays

Sara Worth
Sara Worth
5,225 Points
Posted by Sara Worth
Sara Worth
5,225 Points

How to add elements to NSMutableDictionary

I have been through the videos again and again and have tried to find the answer out online, but everything I try results in errors. How do I add elements from the NSArray to the NSMutableDictionary?

variable_assignment.mm 
NSArray *shoeOrder = @[@"Charles Smith", @(9.5), @"loafer", @"brown"];

NSMutableDictionary *shoeOrderDict;
shoeOrderDict = [[NSMutableDictionary alloc] init];

[shoeOrderDict setObject:@[shoeOrder objectAtIndex: 0] forKey:@"customer”];
[shoeOrderDict setObject:@[shoeOrder objectAtIndex: 1] forKey:@“size”]; 
[shoeOrderDict setObject:@[shoeOrder objectAtIndex: 2] forKey:@“style”];
[shoeOrderDict setObject:@[shoeOrder objectAtIndex: 3] forKey:@“color”];

1 Answer

Arman Arutyunov
Arman Arutyunov
21,900 Points
Arman Arutyunov
Arman Arutyunov
21,900 Points

You don't need an @ sign as it is a call of a method Should be 

[shoeOrderDict setObject:[shoeOrder objectAtIndex: 0]forKey:@"customer"];
[shoeOrderDict setObject:[shoeOrder objectAtIndex: 1] forKey:@"size"]; 
[shoeOrderDict setObject:[shoeOrder objectAtIndex: 2] forKey:@"style"];
[shoeOrderDict setObject:[shoeOrder objectAtIndex: 3] forKey:@"color"];