---
title: key
framework: applearchive
role: symbol
role_heading: Instance Property
path: applearchive/archiveheader/field/key
---

# key

The field key of this field.

## Declaration

```swift
var key: ArchiveHeader.FieldKey { get }
```

## See Also

### Instance Properties

- [type](applearchive/archiveheader/field/type.md)