---
title: Namespace.ID
framework: swiftui
role: symbol
role_heading: Structure
path: swiftui/namespace/id
---

# Namespace.ID

A namespace defined by the persistent identity of an @Namespace dynamic property.

## Declaration

```swift
@frozen struct ID
```

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Copyable](swift/copyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Getting the namespace

- [wrappedValue](swiftui/namespace/wrappedvalue.md)