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Re: Removing duplicates from NSMutableArray
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Re: Removing duplicates from NSMutableArray


  • Subject: Re: Removing duplicates from NSMutableArray
  • From: Jan Van Tol <email@hidden>
  • Date: Mon, 2 Dec 2002 17:43:23 -0600

On Monday, December 2, 2002, at 04:47 PM, Sherm Pendley wrote:

On Monday, December 2, 2002, at 05:05 PM, Jan Van Tol wrote:

What is the best way to filter out duplicate NSStrings from an NSMutableArray?

Traditional Perl wisdom is that, whenever you find yourself using the words "unique" or "duplicate," you should be thinking about a hash instead of an array. In Objective-C terms, that would be an NSDictionary instead of an NSArray. That is, when you're building the list, instead of doing this:

Except that I need it to be sorted. I suppose I could add everything to the dictionary, then get an array from that, then sort it.

Thanks for the responses everyone!

-Jan Van Tol
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  • Follow-Ups:
    • Re: Removing duplicates from NSMutableArray
      • From: Jeff Disher <email@hidden>
    • Re: Removing duplicates from NSMutableArray
      • From: "John C. Randolph" <email@hidden>
References: 
 >Re: Removing duplicates from NSMutableArray (From: Sherm Pendley <email@hidden>)

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