Swift 4 & String

swift.4.0.strings.swift

// collections

let filtered = string.filter { $0 != "🙀" }

// substrings

let substring = string[index...]

// multi line literals

func printMultiLine() {
     print(
        """
        Bacon ipsum dolor amet  landjaeger chicken. Turkey short ribs ham hock boudin
        shoulder short loinhank sirloin jerky porchetta. Leberkas filet mignon flank pig capicola tri-tip
        sausage cupim shankle jowl alcatrha kielbasa meatball shoulder pork chop biltong
        short loin leberkas rump fturkey boudin pork belly pork chop kevin
        """
     )
}

// truncation

extension String {
    func truncated() -> Substring {
        return prefix(truncationLimit)
    }
}

// but requires copy on the returned Substring type

label.text = String(userInput.truncated())