iphone - Reusable NSMutableDictionary -


In that forum someone offered me a code solution that used to work great, but for my understanding, I would like to know What is the difference between the 2 blocks of code:

Block 1 

  NSMutableDictionary * step_info = [NSMutableDictionary Dictionary];

block 2 

  NSMutableDictionary * step_info = zero; Step_info = [NSMutableDictionary dictionary];

It may also be important to mention that step_info has to be loaded again in another NSmutabledictionary to reload.

Thank you for your help

None compiler step_info = Nil is optimized remotely and you are left with the same code.

The following is another method you can take: 

  NSMutableDictionary * step_info; Step_info = [NSMutableDictionary dictionary];

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