---
title: numberOfChildren
framework: pdfkit
role: symbol
role_heading: Instance Property
path: pdfkit/pdfoutline/numberofchildren
---

# numberOfChildren

Returns the number of child outline objects in the outline.

## Declaration

```swift
var numberOfChildren: Int { get }
```

## See Also

### Getting Information About an Outline

- [document](pdfkit/pdfoutline/document.md)
- [parent](pdfkit/pdfoutline/parent.md)
- [child(at:)](pdfkit/pdfoutline/child(at:).md)
- [index](pdfkit/pdfoutline/index.md)