Remove unnecessary case checking and manual throwing.

str.repeat() throws Error for values < 0 and return "" for value of -0. Which covers all cases.

Author: RaihanSharif

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

@@ -1,15 +1,5 @@
 function repeatStr(str, count) {
-  if (count < 0) {
-    throw new Error("invalid input: negative number");
-  }
-
-  if (count === 0) {
-    return "";
-  }
-
-  if ((count) => 1) {
-    return str.repeat(count);
-  }
+  return str.repeat(count);
 }
 
 module.exports = repeatStr;

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

@@ -41,7 +41,7 @@ test("should return empty string with a count of 0", () => {
 // Given a target string `str` and a negative integer `count`,
 // When the repeatStr function is called with these inputs,
 // Then it should throw an error, as negative counts are not valid.
-test("should throw error when count < 0", () => {
+test("show error message when count < 0", () => {
   const str = "hello";
   const count = -2;
   expect(() => repeatStr(str, count)).toThrow();