Function that can determine whether or not to add a character to a string based on some of the indexes of the string. Swift.
func indexstring(str: String, index: Int) ->Character {
var strlist = Array(str)
return strlist[index]
}
func addconorvow(str: String) ->String {
var modstr = str
if indexstring(str, 1) == "d" {
modstr += "d"
return modstr
} else {
modstr += "e"
return modstr
}
}