val firstArg = if (args.length > 0) args(0) else ""
firstArg match {
    case "salt" => println("pepper")
    case "chips" => println("salsa")
    case "eggs" => println("bacon")
    case _ => println("huh?")
}


val firstArg2 = if (!args.isEmpty) args(0) else ""
val friend = 
firstArg2 match {
    case "salt" => "pepper"
    case "chips" => "salsa"
    case "eggs" => "bacon"
    case _ => "huh?"
}
println(friend)