Add Deliberate Error

index.js

 import data from "./helper/data.js";
 
 
+// function makeUpperCase(name) {
+// if (typeof name !== "string") {
+//   throw new Error("Name must be a string");
+// }
+// else {
+//   return name.toUpperCase();
+// }
+// }
+
+// console.log(makeUpperCase("helmut"));
+// console.log(makeUpperCase(1223));
+
+
 const button = document.getElementsByClassName("main-button")[0];
 
 button.addEventListener("click", () => {