Added code

recursion/print numbers.js

@@ -0,0 +1,16 @@
+// program to count down numbers to 1
+function countDown(number) {
+
+    // display the number
+    console.log(number);
+
+    // decrease the number value
+    const newNumber = number - 1;
+
+    // base case
+    if (newNumber > 0) {
+        countDown(newNumber);
+    }
+}
+
+countDown(4);