--- title: String.UnicodeScalarView framework: swift role: symbol role_heading: Structure path: swift/string/unicodescalarview --- # String.UnicodeScalarView A view of a string’s contents as a collection of Unicode scalar values. ## Declaration ```swift @frozen struct UnicodeScalarView ``` ## Overview 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[..