How do I get the first X elements of an unknown size NSArray?

In objectiveC I have an NSArray, let's call it NSArray* largeArray, and I want to get a new NSArray* smallArray with just the first x objects

...OR in the event that largeArray is already size <= x I just want a copy of the largeArray. So truncating any objects after index x.

This approach:

NSArray *smallArray = [largeArray subarrayWithRange:NSMakeRange(0, x)];

Was the answer to this very similar question. But it fails with an error if largeArray is already small.