feat: add recursion

Author: ExploitEngineer

part5 (Functions)/Recursion/recursion.js

@@ -0,0 +1,24 @@
+/*
+INFO: What is Recursion ?
+Recursion is when a function calls itself to solve a smaller version of a problem until it reaches a base case (a condition to stop calling itself)
+*/
+
+function recursiveFunction() {
+  if (baseCondition) {
+    return result; // stop calling itself
+  } else {
+    return recursiveFunction(); // calls itself again
+  }
+}
+
+// Example
+function countdown(n) {
+  if (n <= 0) {
+    console.log("Done!");
+    return;
+  }
+
+  console.log(n);
+  countdown(n - 1); // recursive call
+}
+countdown(3);