Returns the object at the specified index.
- iOS 6.0+
- macOS 10.8+
- tvOS 9.0+
- watchOS 2.0+
An index within the bounds of the array.
The object located at
This method has the same behavior as the
index is beyond the end of the array (that is, if
index is greater than or equal to the value returned by
range is raised.
You shouldn’t need to call this method directly. Instead, this method is called when accessing an object by index using subscripting.