---
title: isNilTransformerName
framework: foundation
role: symbol
role_heading: Type Property
path: foundation/nsvaluetransformername/isniltransformername
---

# isNilTransformerName

This value transformer returns true if the value is nil.

## Declaration

```swift
static let isNilTransformerName: NSValueTransformerName
```

## Discussion

Discussion This transformer is not reversible.

## See Also

### Type Properties

- [isNotNilTransformerName](foundation/nsvaluetransformername/isnotniltransformername.md)
- [keyedUnarchiveFromDataTransformerName](foundation/nsvaluetransformername/keyedunarchivefromdatatransformername.md)
- [negateBooleanTransformerName](foundation/nsvaluetransformername/negatebooleantransformername.md)
- [unarchiveFromDataTransformerName](foundation/nsvaluetransformername/unarchivefromdatatransformername.md)
- [secureUnarchiveFromDataTransformerName](foundation/nsvaluetransformername/secureunarchivefromdatatransformername.md)