Completed reverse string w/ recursion (Closes CoffeelessProgrammer#9)

Author: CoffeelessProgrammer

Playground/Challenges/Recursion/ReverseString.ts

@@ -0,0 +1,22 @@
+function reverseStringRecursive(str: string): string {
+  if (str.length===0) return "";
+
+  return reverseStringRecursive(str.substring(1)) + str.charAt(0);
+}
+
+function printReverseString(str: string) {
+  console.log(str, '–>', reverseStringRecursive(str));
+}
+
+
+//---------------------------------------------------------------------
+// ----------                 MAIN PROGRAM                   ----------
+//---------------------------------------------------------------------
+if (import.meta.main) {
+
+  printReverseString("Hello World!");
+  printReverseString("C0mp!ex1tY");
+  printReverseString("Avatar: The Last Airbender");
+
+  // RUN: deno run Playground/Challenges/Recursion/ReverseString.ts
+}

Playground/Demos/Classes_101.ts

@@ -1,4 +1,4 @@
-// RUN: deno run Playground/Classes_Demo.ts
+// RUN: deno run Playground/Demos/Classes_101.ts
 
 class Bender {
   protected name: string;

Playground/Demos/Objects_101.ts

@@ -1,3 +1,4 @@
+// RUN: deno run Playground/Demos/Objects_101.ts
 
 console.log('------------------------- Episode 1 -------------------------');
 const episode1 = {