---
title: comparator
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/nssortdescriptor/comparator
---

# comparator

The comparator for the sort descriptor.

## Declaration

```swift
var comparator: Comparator { get }
```

## Discussion

Discussion Call this property only for sort descriptors initialized with init(key:ascending:comparator:).

## See Also

### Getting Information About a Sort Descriptor

- [ascending](foundation/nssortdescriptor/ascending.md)
- [key](foundation/nssortdescriptor/key.md)
- [keyPath](foundation/nssortdescriptor/keypath.md)
- [selector](foundation/nssortdescriptor/selector.md)