---
title: isNull
framework: mapkit
role: symbol
role_heading: Instance Property
path: mapkit/mkmaprect/isnull
---

# isNull

A Boolean value that indicates whether the specified rectangle is null.

## Declaration

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

## Discussion

Discussion For this class, a rectangle is null if its origin point contains an invalid or infinite value.

## See Also

### Comparing rectangles

- [MKMapRectEqualToRect(_:_:)](mapkit/mkmaprectequaltorect(_:_:).md)
- [isEmpty](mapkit/mkmaprect/isempty.md)
- [spans180thMeridian](mapkit/mkmaprect/spans180thmeridian.md)
- [remainder](mapkit/mkmaprect/remainder.md)