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

# lowercaseMapping

The lowercase mapping of the scalar.

## Declaration

```swift
var lowercaseMapping: 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 character “İ” (U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE) becomes two scalars (U+0069 LATIN SMALL LETTER I, U+0307 COMBINING DOT ABOVE) when converted to lowercase. This property corresponds to the “Lowercase_Mapping” property in the Unicode Standard.