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Start your free trialFidan Faizullin
3,007 PointsI'm stuck
What is wrong here?
#import "UIViewController.h"
@interface ViewController : UIViewController
@property (strong, nonatomic) NSString *shoppingCart;
@property (strong, nonatomic) NSArray *shoppingList;
@end
#import "ViewController.h"
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Add your code below!
NSArray *shoppingList = [[NSArray alloc] initWithObjects:@"toothpaste", @"bread", @"eggs", nil];
}
@end
1 Answer
Martin Wildfeuer
Courses Plus Student 11,071 PointsYour interface is correct.
In your implementation file, however, you are doing the following in viewDidLoad
:
NSArray *shoppingList = [[NSArray alloc] initWithObjects:@"toothpaste", @"bread", @"eggs", nil];
This way, you are not assigning it to the property shoppingList
you just declared in your interface, but you are creating a brand new NSArray, also called shoppingList
. You can access the properties of your class via self
, thus you should do the following:
self.shoppingList = [[NSArray alloc] initWithObjects:@"toothpaste", @"bread", @"eggs", nil];
Btw., there is an even shorter way to write this
self.shoppingList = @[ @"toothpaste", @"bread", @"eggs" ];
This is called literal syntax, where an array is instantiated with square brackets like this @[]
Hope that helps!