---
title: "applyingTransform(_:reverse:)"
framework: swift
role: symbol
role_heading: Instance Method
path: "swift/stringprotocol/applyingtransform(_:reverse:)"
---

# applyingTransform(_:reverse:)

Perform string transliteration.

## Declaration

```swift
func applyingTransform(_ transform: StringTransform, reverse: Bool) -> String?
```