Update: fix repeat function to accept parameters and handle non-negative integer counts

Author: SuWebOnes

Sprint-3/3-mandatory-practice/implement/repeat.js

@@ -1,5 +1,19 @@
-function repeat() {
-    return "hellohellohello";
+// function repeat() {
+//     return "hellohellohello";
+// }
+// The function always returns "hellohellohello" regardless of any input.
+// There are no parameters, so it’s not flexible or reusable.
+function repeat(str, count) {
+  if (!Number.isInteger(count) || count < 0) {
+    return "Error: Count must be a non-negative integer";
+  }
+  return str.repeat(count);
 }
 
-module.exports = repeat;
+module.exports = repeat;
+//  Example usage:
+// console.log(repeat("hello", 3)); // Expected: "hellohellohello"
+// console.log(repeat("at", 5)); // Expected: "atatatatat"
+// console.log(repeat("test0", 0)); // Expected: ""
+// console.log(repeat("", 5)); // Expected: ""
+// console.log(repeat("WE", 1)); // Expected: "hi"