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# NSTreeNode

A node in a tree of nodes.

```
class NSTreeNode
```

## Overview

[`NSTreeNode`](/documentation/AppKit/NSTreeNode) simplifies the creation and management of trees of objects. Each tree node represents a model object. A tree node with `nil` as its parent node is considered the root of the tree.

## Topics

### Creating tree nodes

[`treeNodeWithRepresentedObject:`](/documentation/AppKit/NSTreeNode/treeNodeWithRepresentedObject:)

Creates and returns a tree node that represents the specified object.

[`init(representedObject:)`](/documentation/AppKit/NSTreeNode/init(representedObject:))

Initializes a newly allocated tree node that represents the specified object.

### Getting information about a node

[`representedObject`](/documentation/AppKit/NSTreeNode/representedObject)

The object the tree node represents.

[`indexPath`](/documentation/AppKit/NSTreeNode/indexPath)

The position of the receiver relative to its root parent.

[`isLeaf`](/documentation/AppKit/NSTreeNode/isLeaf)

A Boolean that indicates whether the receiver is a leaf node.

[`children`](/documentation/AppKit/NSTreeNode/children)

An array containing receiver’s child nodes.

[`mutableChildren`](/documentation/AppKit/NSTreeNode/mutableChildren)

A mutable array that provides read-write access to the receiver’s child nodes.

[`descendant(at:)`](/documentation/AppKit/NSTreeNode/descendant(at:))

Returns the receiver’s descendant at the specified index path.

[`parent`](/documentation/AppKit/NSTreeNode/parent)

The receiver’s parent node.

### Sorting the subtree

[`sort(with:recursively:)`](/documentation/AppKit/NSTreeNode/sort(with:recursively:))

Sorts the receiver’s subtree using the values of the represented objects with the specified sort descriptors.


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