Address the issues from the pull request comments again

Author: anosidium

Sprint-3/1-implement-and-rewrite-tests/implement/3-get-card-value.js

@@ -14,7 +14,7 @@ function getCardValue(card) {
     return 11;
   } else if (["J", "Q", "K"].includes(rank)) {
     return 10;
-  } else if (!isNaN(rank) && Number(rank) >= 2 && Number(rank) <= 10) {
+  } else if (!isNaN(rank) && rank >= 2 && rank <= 10) {
     return Number(rank);
   } else {
     return "Invalid card rank.";

Sprint-3/1-implement-and-rewrite-tests/rewrite-tests-with-jest/2-is-proper-fraction.test.js

@@ -9,18 +9,12 @@ test("should return true for a proper fraction", () => {
 // Case 2: Identify Improper Fractions:
 test("should return false for an improper fraction", () => {
   expect(isProperFraction(3, 2)).toEqual(false);
-});
-
-test("should return false for an improper fraction", () => {
   expect(isProperFraction(-5, 3)).toEqual(false);
 });
 
 // Case 3: Identify Negative Fractions:
 test("should return true for a negative fraction", () => {
   expect(isProperFraction(-4, 7)).toEqual(true);
-});
-
-test("should return true for a negative fraction", () => {
   expect(isProperFraction(4, -7)).toEqual(true);
 });