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iOS

Posted by Brenden Konnagan
Brenden Konnagan
16,858 Points

Help with Designated Initializers and Convenience... Quiz

The question just asks: "Fill in the blank below:"

  • ( ? ) initWithSinger:(NSString *)singer { ? = [ ? init]; if ( ? ) { _singer = singer; } return ?; } so this is what I have:
  • ( id) initWithSinger:(NSString *)singer { self = [ ? init]; (not sure here because I have no clue what this class is........) if ( self ) { _singer = singer; } return self; }

Please help me figure out what this quiz is looking for for the class to init. :-)

Thanks!

Kai Aldag
Kai Aldag
Courses Plus Student 13,560 Points

which quiz is this.

Brenden Konnagan
Brenden Konnagan
16,858 Points

It is under: iOS: Blog Reader: Data Modeling: Designated Initializers and Connivence Constructors : Quiz

1 Answer

Nic Huang
Nic Huang
Courses Plus Student 10,573 Points

Hello! it should be - ( id ) initWithSinger:(NSString *)singer{

                              self = [super init];  
                              if ( self ){
                                       _singer = singer; 
                              } 
                              return self

}

Brenden Konnagan
Brenden Konnagan
16,858 Points

thank you! I was getting hung up on the class forgetting I should be able to just call super!

Aaron Daub
Aaron Daub
Courses Plus Student 96 Points

You should be using instancetype for initializers now.