Write function for 2-practice-tdd/repeat.str.js

Author: Temceo

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

@@ -1,7 +1,16 @@
-function repeatStr() {
+function repeatStr(str, count) {
   // 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.
-  return "hellohellohello";
+
+  if (count < 0) {
+    throw new Error("Number must be 0 or greater");
+  }
+
+  let repeatedStr = "";
+  for (let i = 0; i < count; i++) {
+    repeatedStr += str;
+  }
+  return repeatedStr;
 }
 
 module.exports = repeatStr;