Removing object from NSMutableArray

I stumbled across the following shortcut in setting up a for loop (shortcut compared to the textbook examples I have been using):

for (Item *i in items){ ... }

As opposed to the longer format:

for (NSInteger i = 0; i < [items count]; i++){ ... } //think that's right

If I'm using the shorter vers开发者_如何学运维ion, is there a way to remove the item currently being iterated over (ie 'i')? Or do I need to use the longer format?

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You cannot remove objects from array while fast-enumerating it:

numeration is “safe”—the enumerator has a mutation guard so that if you attempt to modify the collection during enumeration, an exception is raised.

Anyway why do you need to change you container while enumerating it? Consider storing elements that need to be deleted and remove them from your container using removeObjectsInArray: or removeObjectsAtIndexes: method.

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Just add keyword break; after removing the item...

for(id item in items) {
    if([item isEqual:itemToDelete]) {
        [items removeObject:item];
        break; // A very important line