---
title: didChangeNotification
framework: appkit
role: symbol
role_heading: Type Property
path: appkit/nstext/didchangenotification
---

# didChangeNotification

Posted after an NSText object performs any operation that changes characters or formatting attributes.

## Declaration

```swift
class let didChangeNotification: NSNotification.Name
```

## Discussion

Discussion The notification object is the notifying NSText object. This notification does not contain a userInfo dictionary. To observe this notification using Swift concurrency, use NSTextView.DidChangeMessage.

## See Also

### Notifications

- [didBeginEditingNotification](appkit/nstext/didbegineditingnotification.md)
- [didEndEditingNotification](appkit/nstext/didendeditingnotification.md)
- [movementUserInfoKey](appkit/nstext/movementuserinfokey.md)
- [NSTextMovement](appkit/nstextmovement.md)