I want to check to see if an array is empty to activate a shipping method. Here is the code for returning the array.

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *fullFileName = [NSString stringWithFormat:@"%@/arraySaveFile", documentsDirectory];
NSMutableArray *array = [[NSMutableArray alloc] initWithContentsOfFile:fullFileName];

I want to write something like:

if NSString *fullFileName ="" ;
[nnNEP EnableShipping];
else
[nnNEP DisableShipping];

OR

    if array contents ="" ;
    [nnNEP EnableShipping];
    else
    [nnNEP DisableShipping];

I just can't find the right or description on how to do this properly.

Thanks,