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What does it mean when you assign [super init] to self?

+2 votes
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What does it mean when you assign [super init] to self?
What is self parameter?

posted Apr 21, 2014 by Khusboo

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1 Answer

+2 votes
 
Best answer

In short -

You don't need to assign [super init] to self to make most classes work. In some obscure cases, it is actually the wrong thing to do.

So why do we continue to assign to self? It's the traditional template for an initializer, and although it's wrong in some cases, it is right in other cases which have been written to expect this approach.

Further to this is the consideration that class clusters and other classes likely to return unrelated or different, fully initialized objects from their init methods are not supposed to be subclassed in a normal way — making code which favors them less relevant.

The number of cases where super returns an unrelated object are so small that they can easily be dealt with on a case-by-case basis — a class will normally make it very clear when its initializers might return something other than the receiver or nil.

For more detail answer please look at the http://www.cocoawithlove.com/2009/04/what-does-it-mean-when-you-assign-super.html

answer Apr 22, 2014 by Meenal Mishra
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