---
title: isUndoing
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/undomanager/isundoing
---

# isUndoing

Returns a Boolean value that indicates whether the manager is in the process of performing an undo action.

## Declaration

```swift
var isUndoing: Bool { get }
```

## Discussion

Discussion The value is true if the manager is performing its undo() or undoNestedGroup() method, otherwise false.

## See Also

### Checking whether undo or redo is in process

- [isRedoing](foundation/undomanager/isredoing.md)