Hello,
I wrote a method for NSArray.
- (NSArray *)objectsForKey:(id)key
{
NSMutableArray *objectsArray = [NSMutableArray arrayWithCapacity:10];
for( id item in self )
{
[objectsArray addObject:[item objectForKey:key]];
}
return [[objectsArray copy] autorelease];
}
What I'm curious is if it is OK to use fast enumeration to implement an NSArray
method itself.
Because the mechanism for fast enumeration is already there, I basically think
it will be OK.
However, wouldn't it better to rely on the most fundamental mechanism like
objectAtIndex:?
I found someone's implementation here at
http://svn.opengroupware.org/SOGo/inverse/trunk/SoObjects/SOGo/NSArray+Utilities.m
Approaching such a way looks reasonable to me, because it should work whatever
underlying mechanism is supported by Objective-C.
Will there be any good/bad aspect in using fast enumeration in this case?
Thank you.
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