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

# uppercaseMapping

The uppercase mapping of the scalar.

## Declaration

```swift
var uppercaseMapping: String { get }
```

## Discussion

Discussion This property is a String, not a Unicode.Scalar or Character, because some mappings may transform a scalar into multiple scalars or graphemes. For example, the German letter “ß” (U+00DF LATIN SMALL LETTER SHARP S) becomes “SS” (U+0053 LATIN CAPITAL LETTER S, U+0053 LATIN CAPITAL LETTER S) when converted to uppercase. This property corresponds to the “Uppercase_Mapping” property in the Unicode Standard.