---
title: NumberFormatter.Behavior.default
framework: foundation
role: symbol
role_heading: Case
path: foundation/numberformatter/behavior/default
---

# NumberFormatter.Behavior.default

The number-formatter behavior set as the default for new instances. You can set the default formatter behavior with the class method setDefaultFormatterBehavior(_:).

## Declaration

```swift
case `default`
```

## See Also

### Constants

- [NumberFormatter.Behavior.behavior10_0](foundation/numberformatter/behavior/behavior10_0.md)
- [NumberFormatter.Behavior.behavior10_4](foundation/numberformatter/behavior/behavior10_4.md)