A view of a string’s contents as a collection of characters.
Swift Standard Library
In Swift, every string provides a view of its contents as characters. In this view, many individual characters—for example, “é”, “김”, and “🇮🇳”—can be made up of multiple Unicode code points. These code points are combined by Unicode’s boundary algorithms into extended grapheme clusters, represented by the Character type. Each element of a CharacterView collection is a Character instance.
You can convert a String.CharacterView instance back into a string using the String type’s init(_:) initializer.
This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.