aliciawt · aliciawt · Dec 19, 2025 · Jan 7, 2026 · Jan 7, 2026 · Jan 7, 2026
diff --git a/Sprint-3/1-key-implement/1-get-angle-type.js b/Sprint-3/1-key-implement/1-get-angle-type.js
@@ -9,7 +9,10 @@
 
 function getAngleType(angle) {
    if (angle === 90) return "Right angle";
-   // read to the end, complete line 36, then pass your test here
+   if (angle < 90) return "Acute angle";
+   if (angle < 180) return "Obtuse angle";
+   if (angle === 180) return "Straight angle";
+   if (angle > 180) return "Reflex angle";
 }
 
 // we're going to use this helper function to make our assertions easier to read
@@ -43,14 +46,19 @@ assertEquals(acute, "Acute angle");
 // When the angle is greater than 90 degrees and less than 180 degrees,
 // Then the function should return "Obtuse angle"
 const obtuse = getAngleType(120);
+assertEquals(obtuse, "Obtuse angle")
 // ====> write your test here, and then add a line to pass the test in the function above
 
 // Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
+const straight = getAngleType(180);
+assertEquals(straight, "Straight angle");
 // ====> write your test here, and then add a line to pass the test in the function above
 
 // Case 5: Identify Reflex Angles:
 // When the angle is greater than 180 degrees and less than 360 degrees,
 // Then the function should return "Reflex angle"
+const reflex = getAngleType(315);
+assertEquals(reflex, "Reflex angle");
 // ====> write your test here, and then add a line to pass the test in the function above
diff --git a/Sprint-3/1-key-implement/2-is-proper-fraction.js b/Sprint-3/1-key-implement/2-is-proper-fraction.js
@@ -8,7 +8,9 @@
 // write one test at a time, and make it pass, build your solution up methodically
 
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
+  if (denominator === 0) return "Denominator cannot be zero";
+  if (Math.abs(numerator) < Math.abs(denominator)) return true;
+  return false;
 }
 
 // here's our helper again
@@ -40,14 +42,21 @@ assertEquals(improperFraction, false);
 // target output: true
 // Explanation: The fraction -4/7 is a proper fraction because the absolute value of the numerator (4) is less than the denominator (7). The function should return true.
 const negativeFraction = isProperFraction(-4, 7);
-// ====> complete with your assertion
+assertEquals(negativeFraction, true);
 
 // Equal Numerator and Denominator check:
 // Input: numerator = 3, denominator = 3
 // target output: false
 // Explanation: The fraction 3/3 is not a proper fraction because the numerator is equal to the denominator. The function should return false.
 const equalFraction = isProperFraction(3, 3);
-// ====> complete with your assertion
+assertEquals(equalFraction, false);
 
 // Stretch:
 // What other scenarios could you test for?
+
+// Zero Denominator check:
+// Input: numerator = 3, denominator = 0
+// target output: "Denominator cannot be zero"
+// Explanation: Fractions with denominator 0 are invalid. The function should return a warning message.
+const zeroDenominator = isProperFraction(3, 0);
+assertEquals(zeroDenominator, "Denominator cannot be zero");
diff --git a/Sprint-3/1-key-implement/3-get-card-value.js b/Sprint-3/1-key-implement/3-get-card-value.js
@@ -8,7 +8,12 @@
 // write one test at a time, and make it pass, build your solution up methodically
 // just make one change at a time -- don't rush -- programmers are deep and careful thinkers
 function getCardValue(card) {
+    const rank = card.slice(0, -1);
     if (rank === "A") return 11;
+    if (rank === "K" || rank === "Q" || rank === "J") return 10;
+    const num = Number(rank);
+    if (num >= 2 && num <= 10) return num;
+    return "Invalid card rank.";
 }
 
 // You need to write assertions for your function to check it works in different cases
@@ -33,19 +38,24 @@ assertEquals(aceofSpades, 11);
 // When the function is called with such a card,
 // Then it should return the numeric value corresponding to the rank (e.g., "5" should return 5).
 const fiveofHearts = getCardValue("5♥");
-// ====> write your test here, and then add a line to pass the test in the function above
+assertEquals(fiveofHearts, 5);
 
 // Handle Face Cards (J, Q, K):
 // Given a card with a rank of "10," "J," "Q," or "K",
 // When the function is called with such a card,
 // Then it should return the value 10, as these cards are worth 10 points each in blackjack.
+const jackofDiamonds = getCardValue("J♦");
+assertEquals(jackofDiamonds, 10);
 
 // Handle Ace (A):
 // Given a card with a rank of "A",
 // When the function is called with an Ace,
 // Then it should, by default, assume the Ace is worth 11 points, which is a common rule in blackjack.
+// This was done in the example
 
 // Handle Invalid Cards:
 // Given a card with an invalid rank (neither a number nor a recognized face card),
 // When the function is called with such a card,
 // Then it should throw an error indicating "Invalid card rank."
+const invalidCard = getCardValue("13♦");
+assertEquals(invalidCard, "Invalid card rank.")
diff --git a/Sprint-3/2-mandatory-rewrite/1-get-angle-type.js b/Sprint-3/2-mandatory-rewrite/1-get-angle-type.js
@@ -1,7 +1,9 @@
 function getAngleType(angle) {
-  if (angle === 90) return "Right angle";
-  // replace with your completed function from key-implement
-
+   if (angle === 90) return "Right angle";
+   if (angle < 90) return "Acute angle";
+   if (angle < 180) return "Obtuse angle";
+   if (angle === 180) return "Straight angle";
+   if (angle > 180) return "Reflex angle";
 }
 
 

diff --git a/Sprint-3/2-mandatory-rewrite/1-get-angle-type.test.js b/Sprint-3/2-mandatory-rewrite/1-get-angle-type.test.js
@@ -10,15 +10,27 @@ test("should identify right angle (90°)", () => {
 // Case 2: Identify Acute Angles:
 // When the angle is less than 90 degrees,
 // Then the function should return "Acute angle"
+test("should identify acute angle (< 90°)", () => {
+  expect(getAngleType(80)).toEqual("Acute angle");
+});
 
 // Case 3: Identify Obtuse Angles:
 // When the angle is greater than 90 degrees and less than 180 degrees,
 // Then the function should return "Obtuse angle"
+test("should identify obtuse angle (< 180°)", () => {
+  expect(getAngleType(170)).toEqual("Obtuse angle");
+});
 
 // Case 4: Identify Straight Angles:
 // When the angle is exactly 180 degrees,
 // Then the function should return "Straight angle"
+test("should identify straight angle (180°)", () => {
+  expect(getAngleType(180)).toEqual("Straight angle");
+});
 
 // Case 5: Identify Reflex Angles:
 // When the angle is greater than 180 degrees and less than 360 degrees,
 // Then the function should return "Reflex angle"
+test("should identify reflex angle (< 360°)", () => {
+  expect(getAngleType(190)).toEqual("Reflex angle");
+});
diff --git a/Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.js b/Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.js
@@ -1,6 +1,7 @@
 function isProperFraction(numerator, denominator) {
-    if (numerator < denominator) return true;
-    // add your completed function from key-implement here
+  if (denominator === 0) return "Denominator cannot be zero";
+  if (Math.abs(numerator) < Math.abs(denominator)) return true;
+  return false;
 }
 
 module.exports = isProperFraction;
diff --git a/Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.test.js b/Sprint-3/2-mandatory-rewrite/2-is-proper-fraction.test.js
@@ -5,7 +5,16 @@ 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);
+});
 
 // Case 3: Identify Negative Fractions:
+test("should return true for a negative fraction", () => {
+  expect(isProperFraction(-2, 3)).toEqual(true);
+});
 
 // Case 4: Identify Equal Numerator and Denominator:
+test("should return false for equal numerator and denominator", () => {
+  expect(isProperFraction(3, 3)).toEqual(false);
+});
diff --git a/Sprint-3/2-mandatory-rewrite/3-get-card-value.js b/Sprint-3/2-mandatory-rewrite/3-get-card-value.js
@@ -1,5 +1,10 @@
 function getCardValue(card) {
-    // replace with your code from key-implement
-    return 11;
+    const rank = card.slice(0, -1);
+    if (rank === "A") return 11;
+    if (rank === "K" || rank === "Q" || rank === "J") return 10;
+    const num = Number(rank);
+    if (num >= 2 && num <= 10) return num;
+    return "Invalid card rank.";
 }
+
 module.exports = getCardValue;
diff --git a/Sprint-3/2-mandatory-rewrite/3-get-card-value.test.js b/Sprint-3/2-mandatory-rewrite/3-get-card-value.test.js
@@ -6,6 +6,21 @@ test("should return 11 for Ace of Spades", () => {
     });
 
 // Case 2: Handle Number Cards (2-10):
+test("should return 5 for Five of Hearts", () => {
+    const fiveofHearts = getCardValue("5♥");
+    expect(fiveofHearts).toEqual(5);
+    });
+
 // Case 3: Handle Face Cards (J, Q, K):
-// Case 4: Handle Ace (A):
+test("should return 10 for Jack of Diamonds", () => {
+    const jackofDiamonds = getCardValue("J♦");
+    expect(jackofDiamonds).toEqual(10);
+    });
+
+// Case 4: Handle Ace (A): done in the example
+
 // Case 5: Handle Invalid Cards:
+test('should return "Invalid card rank."', () => {
+    const invalidCard = getCardValue("13♦");
+    expect(invalidCard).toEqual("Invalid card rank.");
+    });
diff --git a/Sprint-3/3-mandatory-practice/implement/count.js b/Sprint-3/3-mandatory-practice/implement/count.js
@@ -1,5 +1,5 @@
-function countChar(stringOfCharacters, findCharacter) {
-    return 5
+function countChar(str, char) {
+    return str.split(char).length - 1;
 }
 
 module.exports = countChar;
diff --git a/Sprint-3/3-mandatory-practice/implement/count.test.js b/Sprint-3/3-mandatory-practice/implement/count.test.js
@@ -22,3 +22,9 @@ test("should count multiple occurrences of a character", () => {
 // And a character char that does not exist within the case-sensitive str,
 // When the function is called with these inputs,
 // Then it should return 0, indicating that no occurrences of the char were found in the case-sensitive str.
+test("should count no occurrences of a character", () => {
+  const str = "aaaaa";
+  const char = "b";
+  const count = countChar(str, char);
+  expect(count).toEqual(0);
+});
diff --git a/Sprint-3/3-mandatory-practice/implement/get-ordinal-number.js b/Sprint-3/3-mandatory-practice/implement/get-ordinal-number.js
@@ -1,5 +1,9 @@
 function getOrdinalNumber(num) {
- return "1st";
+ if ((num === "11") || (num === "12") || (num === "13")) return `${num}th`;
+ if (num.slice(-1) === "1") return `${num}st`;
+ if (num.slice(-1) === "2") return `${num}nd`;
+ if (num.slice(-1) === "3") return `${num}rd`;
+ else return `${num}th`;
 }
 
 module.exports = getOrdinalNumber;
diff --git a/Sprint-3/3-mandatory-practice/implement/get-ordinal-number.test.js b/Sprint-3/3-mandatory-practice/implement/get-ordinal-number.test.js
@@ -4,10 +4,42 @@ const getOrdinalNumber = require("./get-ordinal-number");
 // continue testing and implementing getOrdinalNumber for additional cases
 // Write your tests using Jest - remember to run your tests often for continual feedback
 
-// Case 1: Identify the ordinal number for 1
-// When the number is 1,
-// Then the function should return "1st"
+// Case 1: Identify the ordinal number for 11, 12, 13
+// When the number is 11, 12, 13
+// Then the function should return "11th", "12th", "13th"
 
-test("should return '1st' for 1", () => {
-    expect(getOrdinalNumber(1)).toEqual("1st");
+test("should return '-th' for 11, 12, 13", () => {
+    expect(getOrdinalNumber("11")).toEqual("11th");
     });
+
+// Case 2: Identify the ordinal number numbers ending in 1
+// When the number is 1, 21, 31, etc.
+// Then the function should return "1st", "21st", "31st"
+
+test("should return '-st' for numbers ending in 1", () => {
+    expect(getOrdinalNumber("1")).toEqual("1st");
+    });
+
+// Case 3: Identify the ordinal number numbers ending in 2
+// When the number is 2, 22, 32, etc.
+// Then the function should return "2nd", "22nd", "32nd"
+
+test("should return '-nd' for numbers ending in 2", () => {
+    expect(getOrdinalNumber("2")).toEqual("2nd");
+    });
+
+// Case 4: Identify the ordinal number numbers ending in 3
+// When the number is 3, 23, 33, etc.
+// Then the function should return "3rd", "23rd", "33rd"
+
+test("should return '-rd' for numbers ending in 3", () => {
+    expect(getOrdinalNumber("3")).toEqual("3rd");
+    });
+
+// Case 5: Identify the ordinal number for other numbers not ending in 1, 2, 3
+// When the number does not end in 1, 2, 3
+// Then the function should return "num+th"
+
+test("should return '-th' for 11, 12, 13", () => {
+    expect(getOrdinalNumber("15")).toEqual("15th");
+    });
diff --git a/Sprint-3/3-mandatory-practice/implement/repeat.js b/Sprint-3/3-mandatory-practice/implement/repeat.js
@@ -1,5 +1,6 @@
-function repeat() {
-    return "hellohellohello";
+function repeat(str, count) {
+    if (count < 0) return "Invalid input, count cannot be negative.";
+    return str.repeat(count);
 }
 
 module.exports = repeat;
diff --git a/Sprint-3/3-mandatory-practice/implement/repeat.test.js b/Sprint-3/3-mandatory-practice/implement/repeat.test.js
@@ -21,12 +21,33 @@ test("should repeat the string count times", () => {
 // When the repeat function is called with these inputs,
 // Then it should return the original str without repetition, ensuring that a count of 1 results in no repetition.
 
+test("should repeat the string one time when count is 1", () => {
+    const str = "hello";
+    const count = 1;
+    const repeatedStr = repeat(str, count);
+    expect(repeatedStr).toEqual("hello");
+    });
+
 // case: Handle Count of 0:
 // Given a target string str and a count equal to 0,
 // When the repeat function is called with these inputs,
 // Then it should return an empty string, ensuring that a count of 0 results in an empty output.
 
+test("should return empty string when count is 0", () => {
+    const str = "hello";
+    const count = 0;
+    const repeatedStr = repeat(str, count);
+    expect(repeatedStr).toEqual("");
+    });
+
 // case: Negative Count:
 // Given a target string str and a negative integer count,
 // When the repeat function is called with these inputs,
 // Then it should throw an error or return an appropriate error message, as negative counts are not valid.
+
+test("should return an error when count is negative", () => {
+    const str = "hello";
+    const count = -3;
+    const repeatedStr = repeat(str, count);
+    expect(repeatedStr).toEqual("Invalid input, count cannot be negative.");
+    });