Implement repeatStr function to return repeated string based on count, with error handling for negative counts

alexandru-pocovnicu · alexandru-pocovnicu · commit 1c394fbea29e · 2026-02-18T17:42:37.000Z
diff --git a/Sprint-3/2-practice-tdd/repeat-str.js b/Sprint-3/2-practice-tdd/repeat-str.js
@@ -1,5 +1,6 @@
-function repeatStr() {
-  return "hellohellohello";
+function repeatStr(str, count) {
+  if (count < 0) throw new Error("negative counts are not valid");
+  return str.repeat(count);
 }
 
 module.exports = repeatStr;

Original file line number	Diff line number	Diff line change
`@@ -1,5 +1,6 @@`
`1`		`-function repeatStr() {`
`2`		`- return "hellohellohello";`
	`1`	`+function repeatStr(str, count) {`
	`2`	`+ if (count < 0) throw new Error("negative counts are not valid");`
	`3`	`+ return str.repeat(count);`
`3`	`4`	`}`
`4`	`5`
`5`	`6`	`module.exports = repeatStr;`