Function implemented to repeat string count times.

Author: Mahtem

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

@@ -1,5 +1,15 @@
-function repeat() {
-  return "hellohellohello";
+function repeat(str, count) {
+  if (typeof str !== "string") {
+    throw new Error("Input must be a string");
+  }
+  if (!Number.isInteger(count) || count < 0) {
+    throw new Error("Count must be a non-negative integer");
+  }
+
+  return str.repeat(count);
 }
 
 module.exports = repeat;
+
+
+// Function implemented to repeat string count times.