---
title: isLogicalOrderException
framework: swift
role: symbol
role_heading: Instance Property
path: swift/unicode/scalar/properties-swift.struct/islogicalorderexception
---

# isLogicalOrderException

A Boolean value indicating whether the scalar requires special handling for operations involving ordering, such as sorting and searching.

## Declaration

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

## Discussion

Discussion This property applies to a small number of spacing vowel letters occurring in some Southeast Asian scripts like Thai and Lao, which use a visual order display model. Such letters are stored in text ahead of syllable-initial consonants. This property corresponds to the “Logical_Order_Exception” property in the Unicode Standard.