---
title: unit
framework: appintents
role: symbol
role_heading: Instance Property
path: appintents/intentparameter/unit-4ukvz
---

# unit

## Declaration

```swift
final var unit: IntentParameter<Value>.ConcentrationMass? { get }
```

## See Also

### Accessing unit details

- [IntentParameter.ConcentrationMass](appintents/intentparameter/concentrationmass.md)
- [defaultUnit](appintents/intentparameter/defaultunit-6mid8.md)
- [supportsNegativeNumbers](appintents/intentparameter/supportsnegativenumbers-5s36k.md)
- [unitAdjustForLocale](appintents/intentparameter/unitadjustforlocale-831sz.md)