Answers

1. Using %dw 2.0 in the script’s header because only major versions have to be provided, not minor versions.
2. Addition (+), subtraction (-), prepend (>>), and append (<<)
3. It can be defined as follows:

   var hello: String = "Hello World"
   ---
   hello

4. It can be defined as follows:

   fun sum(p1: Number, p2: Number): Number = p1 + p2
   ---
   sum(1,2)

5. Solution 1: Using if/else

   fun order(original: String): String = do {
       var new: String = original[-1 to 0]
       ---
       if (original > new) original ++ " goes after " ++ new
       else if (original < new) original ++ " goes before "
         ++ new
       else original ++ " is a palindrome"
   }
   ---
   order("abc")

Solution 2: Using match/case

fun order(original: String): String = do {
    var new: String = original...