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iOS Build a Simple iPhone App (iOS7) Refactoring into a Model Creating a Custom Class

Random quotes assignment seems dodgy

Hi there. I know this seems to have been covered in a previous discussion, but I can't see what I'm doing wrong. In challenge task 2 of Stage 4 (refactoring into a model) of the iOS Development track, the random quotes assignment, one's asked to create a @property called 'quotes' and then use it in the implementation. Here's my implementation:

#import "Quote.h"

@implementation Quote

-(NSArray *) quotes {
    if (_quotes == nil) {
    _quotes = [[NSArray alloc] initWithObjects:@"foo", @"bar", @"moo", nil];
  }
  return _quotes;
}
- (NSString *) randomQuote {
    return [self.quotes objectAtIndex:arc4random_uniform(self.quotes.count);
}

@end

and in my header file, I have:

@interface Quote : NSObject

// Add property here
@property (nonatomic, strong) NSArray *quotes;
- (NSString *) randomQuote;

@end

Unfortunately, it just keeps saying:

Bummer! Remember to allocate and initialize the instance variable '_quotes' and return it from the method named 'quotes'.

Any ideas?

3 Answers

Holger Liesegang
Holger Liesegang
50,595 Points

Hi David,

you are missing the closing square bracket at the end of:

return [self.quotes objectAtIndex:arc4random_uniform(self.quotes.count)];

Yup! That was it! Thanks Holger.

Liam Herbert
Liam Herbert
15,140 Points

You have to close the square bracket, like so:

return [self.quotes objectAtIndex:arc4random_uniform(self.quotes.count)];

Hope this helps