---
title: keys
framework: xpc
role: symbol
role_heading: Instance Property
path: xpc/xpcdictionary/keys
---

# keys

A collection containing just the keys of the dictionary.

## Declaration

```swift
var keys: [String] { get }
```

## Discussion

Discussion When iterated over, keys appear in this collection in the same order as they occur in the dictionary’s key-value pairs. Each key in the keys collection has a unique value. note: The complexity of this property is O(*n*) over the dictionary’s count.

## See Also

### Accessing keys and values

- [values](xpc/xpcdictionary/values.md)
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