# String.UnicodeScalarView A view of a string’s contents as a collection of Unicode scalar values. ``` @frozen struct UnicodeScalarView ``` ## Overview You can access a string’s view of Unicode scalar values by using its `unicodeScalars` property. Unicode scalar values are the 21-bit codes that are the basic unit of Unicode. Each scalar value is represented by a `Unicode.Scalar` instance and is equivalent to a UTF-32 code unit. ``` let flowers = "Flowers 💐" for v in flowers.unicodeScalars { print(v.value) } // 70 // 108 // 111 // 119 // 101 // 114 // 115 // 32 // 128144 ``` Some characters that are visible in a string are made up of more than one Unicode scalar value. In that case, a string’s `unicodeScalars` view contains more elements than the string itself. ``` let flag = "🇵🇷" for c in flag { print(c) } // 🇵🇷 for v in flag.unicodeScalars { print(v.value) } // 127477 // 127479 ``` You can convert a `String.UnicodeScalarView` instance back into a string using the `String` type’s `init(_:)` initializer. ``` let favemoji = "My favorite emoji is 🎉" if let i = favemoji.unicodeScalars.firstIndex(where: { $0.value >= 128 }) { let asciiPrefix = String(favemoji.unicodeScalars[..