What's the simplest way to convert from a single character String to an ASCII value in Swift?

Question

I just want to get the ASCII value of a single char string in Swift. This is how I\'m currently doing it:

var singleChar = \"a\"
println(singleChar.unicodeSc         


        

Answer 1

A slightly shorter way of doing this could be:

first(singleChar.unicodeScalars)!.value

As with the subscript version, this will crash if your string is actually empty, so if you’re not 100% sure, use the optional:

if let ascii = first(singleChar.unicodeScalars)?.value {

}

Or, if you want to be extra-paranoid,

if let char = first(singleChar.unicodeScalars) where char.isASCII() {
    let ascii = char.value
}