Instance Method

objectAtIndex:

Returns the object at the specified index of the set.

Declaration

- (ObjectType)objectAtIndex:(NSUInteger)idx;

Parameters

index: The object located at index.

Return Value

If 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.

See Also

Accessing Set Members

- containsObject:

Returns a Boolean value that indicates whether a given object is present in the ordered set.

- enumerateObjectsAtIndexes:options:usingBlock:

Executes a given block using the objects in the ordered set at the specified indexes.

- enumerateObjectsUsingBlock:

Executes a given block using each object in the ordered set.

- enumerateObjectsWithOptions:usingBlock:

Executes a given block using each object in the set, using the specified enumeration options.

The first object in the ordered set.

The last object in the ordered set.

- objectAtIndexedSubscript:

Returns the object at the specified index of the set.

- objectsAtIndexes:

Returns the objects in the ordered set at the specified indexes.

- indexOfObject:

Returns the index of the specified object.

- indexOfObject:inSortedRange:options:usingComparator:

Returns the index, within a specified range, of an object compared with elements in the ordered set using a given NSComparator block.

- indexOfObjectAtIndexes:options:passingTest:

Returns the index, from a given set of indexes, of the object in the ordered set that passes a test in a given block for a given set of enumeration options.

- indexOfObjectPassingTest:

Returns the index of the object in the ordered set that passes a test in a given block.

- indexOfObjectWithOptions:passingTest:

Returns the index of an object in the ordered set that passes a test in a given block for a given set of enumeration options.

- indexesOfObjectsAtIndexes:options:passingTest:

Returns the index, from a given set of indexes, of the object in the ordered set that passes a test in a given block for a given set of enumeration options.

- indexesOfObjectsPassingTest:

Returns the index of the object in the ordered set that passes a test in a given block.

- indexesOfObjectsWithOptions:passingTest:

Returns the index of an object in the ordered set that passes a test in a given block for a given set of enumeration options.

- objectEnumerator

Returns an enumerator object that lets you access each object in the ordered set.

- reverseObjectEnumerator

Returns an enumerator object that lets you access each object in the ordered set.

reversedOrderedSet

An ordered set in the reverse order.

- getObjects:range:

Copies the objects contained in the ordered set that fall within the specified range to objects.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software