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Re: do you init your instance variables in init method or outside the class?
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Re: do you init your instance variables in init method or outside the class?


  • Subject: Re: do you init your instance variables in init method or outside the class?
  • From: Chris Ridd <email@hidden>
  • Date: Wed, 18 Jul 2012 14:03:40 +0100

On 18 Jul 2012, at 08:09, Lee Ann Rucker wrote:

> In init, and only when they need it. They're all initialized to nil, which is a perfectly reasonable value for an instvar to have; there's very rarely a reason to do anything like
>
>>    name = [NSString string];
>
> because sending a method to nil is perfectly safe, unlike C++.
>
>>    foodLists = [NSMutableArray array];
>
> is necessary, as you've seen, but not for the reasons you think.

Both of those lines are going to cause random crashes later on because they're non-retained objects.

Chris

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