Say you had the following two constructors:

- (id)initWithTitle:(NSString *)title;
- (id)initWithTitle:(NSString *)title page:(NSString *)page;

The second constructor is no different from the first, except that it sets up the member variable "page".

Since it basically has to do the same thing, is there a way to call the first one from the second one to reduce code duplication, or do you have to set up a third method to do the common tasks?

I'm talking about something similar to this, though I doubt this will work:

- (id)initWithTitle:(NSString *)_title {
    if(self = [super init]) {
        self.title = _title;
    }

    return self;
}

- (id)initWithTitle:(NSString *)_title page:(NSString *)_page {
     if(self = [self initWithTitle:_title]) {
         self.page = _page;
     }

     return self;
}