Implement script to prepare packages with Node.js

tests/simple-test.js

@@ -0,0 +1,15 @@
+function fibonacci(num){
+    var a = 1, b = 0, temp;
+  
+    while (num >= 0){
+        temp = a;
+        a = a + b;
+        b = temp;
+        num--;
+    }
+  
+    return b;
+}
+
+console.log(fibonacci(7));
+console.log(fibonacci(23));