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iOS

Posted by Louis Mark
Louis Mark
1,395 Points

Code Challenge: Create an NSMutableArray object called 'elements'.

The challenge is asking to to Create an NSMutableArray object called 'elements'.

I tried to create an NSMutableArray object by typing this into the editor: NSMutableArray *elements;

The code challenge editor says I made a mistake, but the code works just fine in Xcode.

Does anyone have any idea what went wrong?

Thanks.

2 Answers

Stefan Bjornsson
Stefan Bjornsson
3,362 Points
Stefan Bjornsson
Stefan Bjornsson
3,362 Points

For the first task I have tried the 3 following lines of code that does not pass: NSMutableArray *elements; NSMutableArray *elements = [[NSMutableArray alloc] init]; NSMutableArray *elements = [[NSMutableArray alloc] initWithCapacity: 0];

When pushing the preview button I rarely see any display of errors through out this course it usually display blank white space, is it possible to fix that?

Amit Bijlani
Amit Bijlani
Treehouse Guest Teacher
Amit Bijlani
Amit Bijlani
Treehouse Guest Teacher

Try: NSMutableArray *elements = [NSMutableArray array];

Brayden Kness
Brayden Kness
12,492 Points
Brayden Kness
Brayden Kness
12,492 Points

Did you do @property (strong, nonatomic) NSMutableArray *elements; ?

Louis Mark
Louis Mark
1,395 Points

Not possible since there's no header file.