---
title: unsafelyUnwrapped
framework: swift
role: symbol
role_heading: Instance Property
path: swift/optional/unsafelyunwrapped
---

# unsafelyUnwrapped

The wrapped value of this instance, unwrapped without checking whether the instance is nil.

## Declaration

```swift
var unsafelyUnwrapped: Wrapped { get }
```

## Discussion

Discussion The unsafelyUnwrapped property provides the same value as the forced unwrap operator (postfix !). However, in optimized builds (-O), no check is performed to ensure that the current instance actually has a value. Accessing this property in the case of a nil value is a serious programming error and could lead to undefined behavior or a runtime error. In debug builds (-Onone), the unsafelyUnwrapped property has the same behavior as using the postfix ! operator and triggers a runtime error if the instance is nil. The unsafelyUnwrapped property is recommended over calling the unsafeBitCast(_:) function because the property is more restrictive and because accessing the property still performs checking in debug builds. warning: This property trades safety for performance.  Use unsafelyUnwrapped only when you are confident that this instance will never be equal to nil and only after you’ve tried using the postfix ! operator.

## See Also

### Inspecting an Optional

- [hash(into:)](swift/optional/hash(into:).md)
- [debugDescription](swift/optional/debugdescription.md)
- [customMirror](swift/optional/custommirror.md)