Returns the object at the specified index of the set.
- iOS 5.0+
- macOS 10.7+
- Mac Catalyst 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
The object located at index.
index is beyond the end of the ordered set (that is, if index is greater than or equal to the value returned by count), an
NSRangeException is raised.
Accessing Set Members
Returns a Boolean value that indicates whether a given object is present in the ordered set.
Returns an enumerator object that lets you access each object in the ordered set.
Copies the objects contained in the ordered set that fall within the specified range to
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