Refactor repeatStr function: streamline implementation and maintain non-use of String.prototype.repeat

Author: TTiamiyu

Sprint-3/2-practice-tdd/repeat-str.js

@@ -1,16 +1,14 @@
-function repeatStr() {
-  // Your implementation of this function must *not* call String.prototype.repeat (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/repeat).
-  // The goal is to re-implement that function, not to use it.
-  function repeatStr(str, count) {
-    if (count < 0) {
-      throw new Error("Count must be a non-negative integer");
-    }
-    let result = "";
-    for (let i = 0; i < count; i++) {
-      result += str;
-    }
-    return result;
+// Your implementation of this function must *not* call String.prototype.repeat (https://developer...)
+// The goal is to re-implement that function, not to use it.
+function repeatStr(str, count) {
+  if (count < 0) {
+    throw new Error("Count must be a non-negative integer");
   }
-
-  module.exports = repeatStr;
+  let result = "";
+  for (let i = 0; i < count; i++) {
+    result += str;
+  }
+  return result;
 }
+
+module.exports = repeatStr;