I won't elaborate. This is just clearly in the description. So read it again, or move on.

I've read the description, please elaboraate what is there that you think I've missed from the description.

Is this what you need?

val MorseCode = mapOf(
    "-.-.--" to "!",
    ".-..-." to "\"",
    "...-..-" to "$",
    ".-..." to "&",
    ".----." to "\'",
    "-.--." to "(",
    "-.--.-" to ")",
    ".-.-." to "+",
    "--..--" to ",",
    "-....-" to "-",
    ".-.-.-" to ".",
    "-..-." to "/",
    "-----" to "0",
    ".----" to "1",
    "..---" to "2",
    "...--" to "3",
    "....-" to "4",
    "....." to "5",
    "-...." to "6",
    "--..." to "7",
    "---.." to "8",
    "----." to "9",
    "---..." to ":",
    "-.-.-." to ";",
    "-...-" to "=",
    "..--.." to "?",
    ".--.-." to "@",
    ".-" to "A",
    "-..." to "B",
    "-.-." to "C",
    "-.." to "D",
    "." to "E",
    "..-." to "F",
    "--." to "G",
    "...." to "H",
    ".." to "I",
    ".---" to "J",
    "-.-" to "K",
    ".-.." to "L",
    "--" to "M",
    "-." to "N",
    "---" to "O",
    ".--." to "P",
    "--.-" to "Q",
    ".-." to "R",
    "..." to "S",
    "-" to "T",
    "..-" to "U",
    "...-" to "V",
    ".--" to "W",
    "-..-" to "X",
    "-.--" to "Y",
    "--.." to "Z",
    "..--.-" to "_",
    "...---..." to "SOS"
)

Then try printing MorseCode here and build your own in your IDE with that.

I solve everything with the IDE and then copy it here. That's why I don't understand how to do it.

Kotlin: MorseCode[".--"] ?: "" or MorseCode.getOrDefault(".--", "")

Change that ".--" with a var that contains a single morse code.

How to add morse code to kotlin. I don't understand...