diff --git a/index.js b/index.js
index e36025b00..11c59f808 100644
--- a/index.js
+++ b/index.js
@@ -1,2 +1,6 @@
 function addingEventListener() {
+  const input = document.getElementById('button');
+  input.addEventListener('click', function() {
+  alert('I was clicked!');
+});
 }