refactor: simplify repeatStr using String.prototype.repeat

Author: Pretty Taruvinga

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

@@ -8,15 +8,31 @@ function repeatStr(n, str) {
 
 module.exports = repeatStr;
 // const repeatStr = require("./repeat-str");
-
+// Given a target string `str` and a positive integer `count`,
+// When the repeatStr function is called with these inputs,
+// Then it should:
 // test("repeats a string n times", () => {
 //   expect(repeatStr(3, "hello")).toBe("hellohellohello");
 // });
-
+const repeatStr = require("./repeat-str");
+test("repeats a string n times", () => {
+  expect(repeatStr(3, "hello")).toBe("hellohellohello");
+});
 // test("repeats a different string", () => {
 //   expect(repeatStr(2, "abc")).toBe("abcabc");
 // });
-
+test("repeats a different string", () => {
+  expect(repeatStr(2, "abc")).toBe("abcabc");
+});
+// test("returns empty string when n is 0", () => {
+//   expect(repeatStr(0, "hi")).toBe("");
+// });
+test("returns empty string when n is 0", () => {
+  expect(repeatStr(0, "hi")).toBe("");
+});
 // test("returns empty string when n is 0", () => {
 //   expect(repeatStr(0, "hi")).toBe("");
 // });
+test("returns empty string when n is 0", () => {
+  expect(repeatStr(0, "hi")).toBe("");
+});

package.json

@@ -11,5 +11,8 @@
   "license": "ISC",
   "dependencies": {
     "jest": "^29.7.0"
+  },
+  "devDependencies": {
+    "jest-environment-jsdom": "^30.2.0"
   }
-}
+}