---
title: formatterBehavior
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/numberformatter/formatterbehavior
---

# formatterBehavior

The formatter behavior of the receiver.

## Declaration

```swift
var formatterBehavior: NumberFormatter.Behavior { get set }
```

## See Also

### Related Documentation

- [Data Formatting Guide](apple-archive/documentation/Cocoa/Conceptual/DataFormatting.md)

### Configuring Formatter Behavior and Style

- [setDefaultFormatterBehavior(_:)](foundation/numberformatter/setdefaultformatterbehavior(_:).md)
- [defaultFormatterBehavior()](foundation/numberformatter/defaultformatterbehavior().md)
- [numberStyle](foundation/numberformatter/numberstyle.md)
- [generatesDecimalNumbers](foundation/numberformatter/generatesdecimalnumbers.md)