---
title: "constant(_:)"
framework: foundationmodels
role: symbol
role_heading: Type Method
path: "foundationmodels/generationguide/constant(_:)"
---

# constant(_:)

Enforces that the string be precisely the given value.

## Declaration

```swift
static func constant(_ value: String) -> GenerationGuide<String>
```

## See Also

### Getting the constant

- [anyOf(_:)](foundationmodels/generationguide/anyof(_:).md)