Re: Weird behavior in NSMutableDictionary
Re: Weird behavior in NSMutableDictionary
- Subject: Re: Weird behavior in NSMutableDictionary
- From: Harilaos Skiadas <email@hidden>
- Date: Sat, 18 Dec 2004 02:44:56 -0800 (PST)
- Comment: DomainKeys? See http://antispam.yahoo.com/domainkeys
--- Thomas Lachand-Robert <email@hidden> wrote:
>
> Le 18 déc. 04, à 05:10, Harilaos Skiadas a écrit :
>
> > What I want to do is add anItem as an object to
> aDict,
> > with key the string that is the object
> corresponding
> > the key @"aKey" in anItem. I would have thought
> that
> > the following would work:
> > [aDict setValue:anItem forKey:[anItem
> > valueForKey:@"aKey"]];
> > instead, I had to use:
> > [aDict setValue:anItem forKey:[[anItem
> > valueForKey:@"aKey"] copy];
> >
> >
>
> You are confusing -valueForKey with -objectForKey
> and -setValueForKey
> with -setObjectForKey. Check again the documentation
> on dictionaries.
>From the docs on NSMutableDictionary:
>- (void)setValue:(id)value forKey:(NSString *)key
>
>Adds an entry to the receiver using setObject:forKey:
with the >specified value and key. If value is nil it
instead attempts to remove >the specified key using
removeObjectForKey:.
and from NSDictionary:
>- (id)valueForKey:(NSString *)key
>
>Returns the result of sending objectForKey: to the
receiver
So it seems to me that as long as the value is not
nil, which it isn't in my case, there is no
difference. Am I missing something?
>
> Yours,
>
> Thomas Lachand-Robert
> ********************** email@hidden
> << Et le chemin est long du projet à la chose. >>
> Molière, Tartuffe.
>
Best,
Haris
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