On Mar 6, 2012, at 6:19 PM, Marco Tabini <mtab...@me.com> wrote:
>> I have an array and I am iterating through it using this technique:
>>
>>> for (id object in array) {
>>> // do something with object
>>> }
>>
>> Is there way to obtain the object's current array index position or do I
>> have to add a counter?
>
> [array indexOfObject:object] should do the trick, though, if you need to do
> it at every iteration, keeping a counter may be better.
Note that -indexOfObject: returns an object from the array that is -isEqual: to
the parameter. This might not be the same object that you are looking at.
-indexOfObjectIdenticalTo: would solve the -isEqual: problem, but would still
return the wrong index if the same object were in the array twice.
You should add a counter to your for..in loop, or use a traditional counted for
loop and -objectAtIndex:.
--
Greg Parker gpar...@apple.com Runtime Wrangler
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