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

Here's my implementation, it returns an array of the ASCII values.

extension String {

    func asciiValueOfString() -> [UInt32] {

      var retVal = [UInt32]()
      for val in self.unicodeScalars where val.isASCII() {
          retVal.append(UInt32(val))
      }
      return retVal
    }
}

Note: Yes it's Swift 2 compatible.