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Re: Why the need for the id type?

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Re: Why the need for the id type?

Subject: Re: Why the need for the id type?
From: mmalc Crawford <email@hidden>
Date: Mon, 18 Jun 2007 14:13:50 -0700


On Jun 18, 2007, at 2:07 PM, John Stiles wrote:

I don't understand why id should be necessary. Why isn't NSObject (or some other root class) enough?

<http://developer.apple.com/documentation/Cocoa/Conceptual/CocoaFundamentals/CocoaObjects/chapter_3_section_3.html#//apple_ref/doc/uid/TP40002974-CH4-DontLinkElementID_130 >
I don't see how this directly answers the OP's question.

"The id data type makes it possible to substitute any type of object at runtime. You can thereby let runtime factors dictate what kind of object is to be used in your code. [...]"

mmalc

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References:  
  >Why the need for the id type? (From: Wagner Truppel <email@hidden>)
  >Re: Why the need for the id type? (From: mmalc Crawford <email@hidden>)
  >Re: Why the need for the id type? (From: John Stiles <email@hidden>)




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