Re: Why add a nil item to an NSArray ?
Re: Why add a nil item to an NSArray ?
- Subject: Re: Why add a nil item to an NSArray ?
- From: "Mark Munz (DevList)" <email@hidden>
- Date: Mon, 27 Jun 2005 17:20:52 -0500
It is non-intuitive. Is this maybe something left over from the past?
The variable argument method already has process a variable list of
arguments already and can easily determine when the end is reached.
Other methods like [NSString stringWithFormat:(NSString*)format,...]
work as you would expect.
But NSArray and NSDictionary are very unhappy campers if you don't
end your definitions with a nil.
Mark Munz
On Jun 27, 2005, at 2:37 PM, SA Dev wrote:
That's how the 'method' 'knows' that you've given it the last
item in the list so it can know for sure when it reaches the end of
the arguments for the method.
On Jun 27, 2005, at 3:08 PM, Martin Ottenwaelter wrote:
Hi,
Why doesn't that works :
[NSArray initWithObjects:@"First",@"Second"];
Why do I have to add that nil item for the NSArray to be ok ?
[NSArray initWithObjects:@"First",@"Second",nil];
Thanks.
--
Martin
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