Sha256: 62f8992d15b025d5b51be426f76d6fb4e3efd87c50f10a730f318f36c2a6f198
Contents?: true
Size: 590 Bytes
Versions: 364
Compression:
Stored size: 590 Bytes
Contents
import Foundation
struct Isogram {
static func isIsogram(_ string: String) -> Bool {
let lowercasedString = string.lowercased()
let lowercaseLetterSet = CharacterSet.lowercaseLetters
var letters: Set<UnicodeScalar> = []
for character in lowercasedString.unicodeScalars {
guard lowercaseLetterSet.contains(character) else {
continue
}
guard !letters.contains(character) else {
return false
}
letters.insert(character)
}
return true
}
}
Version data entries
364 entries across 364 versions & 1 rubygems