Testing for contents of an NSArray without risking range error

Posted by Dan Ray on Stack Overflow See other posts from Stack Overflow or by Dan Ray
Published on 2010-05-24T19:16:54Z Indexed on 2010/05/24 19:21 UTC
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iphone

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objective-c

I'm foolishly saying:

if ([imageCache objectAtIndex:index]) {

Problem is, on my first time through this, I haven't put ANYTHING in my NSMutableArray *imageCache, and this croaks with a range error.

How can I ask an NSMutableArray whether it has anything for a particular index?

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