<!--
{
  "availability" : [
    "iOS: 8.0.0 -",
    "iPadOS: 8.0.0 -",
    "macCatalyst: 13.0.0 -",
    "macOS: 10.10.0 -",
    "tvOS: 9.0.0 -",
    "visionOS: 1.0.0 -",
    "watchOS: 2.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "Swift",
  "identifier" : "/documentation/Swift/Unicode/Scalar/Properties-swift.struct/isCased",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "Swift"
    ],
    "preciseIdentifier" : "s:s7UnicodeO6ScalarV10PropertiesV7isCasedSbvp"
  },
  "title" : "isCased"
}
-->

# isCased

A Boolean value indicating whether the scalar is considered to be
either lowercase, uppercase, or titlecase.

```
var isCased: Bool { get }
```

## Discussion

Though similar in name, this property is *not* equivalent to
`changesWhenCaseMapped`. The set of scalars for which `isCased` is `true`
is a superset of those for which `changesWhenCaseMapped` is `true`. For
example, the Latin small capitals that are used by the International
Phonetic Alphabet have a case, but do not change when they are mapped to
any of the other cases.

This property corresponds to the “Cased” property in the
[Unicode Standard](http://www.unicode.org/versions/latest/).

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)