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 Build a Simple iPhone App with Objective-C Creating a Data Model Creating a Data Collection

Phil Hangyal
Phil Hangyal
6,930 Points

What on earth am I doing wrong :(!

It's asking me to assign eggs as a string with objectAtIndex to shoppingCart from the header file. I'm rather tired and might have missed something small please help!

(Side note, this code works in my Xcode simulator)

Thanks for any help.

#import "UIViewController.h"

@interface ViewController : UIViewController

@property (strong, nonatomic) NSString *shoppingCart;
@property (strong, nonatomic) NSArray *shoppingList;

#import "ViewController.h"

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];

    // Add your code below!
    self.shoppingList = [[NSArray alloc] initWithObjects: @"toothpaste", @"bread", @"eggs", nil];
    self.shoppingCart = [shoppingList objectAtIndex:2];


1 Answer

Chris Shaw
Chris Shaw
26,676 Points

Hi Phil,

You have a very small oversight in your code and that is you haven't prefixed shoppingList with self.

self.shoppingCart = [self.shoppingList objectAtIndex:2];

Happy coding!