---
title: "StructuredValue.double(_:)"
framework: evaluations
role: symbol
role_heading: Case
path: "evaluations/structuredvalue/double(_:)"
---

# StructuredValue.double(_:)

A double-precision floating-point value.

## Declaration

```swift
case double(Double)
```

## See Also

### Primitive values

- [StructuredValue.string(_:)](evaluations/structuredvalue/string(_:).md)
- [StructuredValue.int(_:)](evaluations/structuredvalue/int(_:).md)
- [StructuredValue.bool(_:)](evaluations/structuredvalue/bool(_:).md)
- [StructuredValue.null](evaluations/structuredvalue/null.md)