# as(_:) Casts the raw value to the specified type. ``` func `as`(_ type: T.Type) throws -> T where T : LosslessStringConvertible ``` ## Discussion If the raw value isn’t an instance of that type, this method throws an error. ```swift let enumCase = MyEnumDefinition.makeCase("caseName") try enumCase.as(String.self) == "caseName" ``` > Throws: If the raw value cannot be represented as the target type. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)