Cape Town | sep-2026-ITP | Matthaus Bause | Sprint 3 | Dead Code

dead-code/exercise-1.js

@@ -1,17 +1,9 @@
-// Find the instances of unreachable and redundant code - remove them!
-// The sayHello function should continue to work for any reasonable input it's given.
-
-let testName = "Jerry";
+let testName = "Aman";
 const greeting = "hello";
 
 function sayHello(greeting, name) {
-  const greetingStr = greeting + ", " + name + "!";
   return `${greeting}, ${name}!`;
-  console.log(greetingStr);
 }
 
-testName = "Aman";
-
 const greetingMessage = sayHello(greeting, testName);
-
 console.log(greetingMessage); // 'hello, Aman!'

dead-code/exercise-2.js

@@ -1,17 +1,9 @@
-// Remove the unused code that does not contribute to the final console log
-// The countAndCapitalisePets function should continue to work for any reasonable input it's given, and you shouldn't modify the pets variable.
-
 const pets = ["parrot", "hamster", "horse", "dog", "hamster", "cat", "hamster"];
-const capitalisedPets = pets.map((pet) => pet.toUpperCase());
-const petsStartingWithH = pets.filter((pet) => pet[0] === "h");
 
-function logPets(petsArr) {
-  petsArr.forEach((pet) => console.log(pet));
-}
+const petsStartingWithH = pets.filter((pet) => pet[0] === "h");
 
 function countAndCapitalisePets(petsArr) {
   const petCount = {};
-
   petsArr.forEach((pet) => {
     const capitalisedPet = pet.toUpperCase();
     if (petCount[capitalisedPet]) {

format-clock-edge-cases/timeConverter.js

@@ -1,11 +1,24 @@
 function formatAs12HourClock(time) {
+
+  const [hoursStr, minutesStr] = time.split(':');
+  const hours = Number(hoursStr);
+  const minutes = minutesStr;
 
-  const hours = Number(time.slice(0, 2));
+  if (hours === 0 || hours === 24) {
+    return `12:${minutes} am`;
+  }
+
+  if (hours === 12) {
+    return `12:${minutes} pm`;
+  }
 
   if (hours > 12) {
-    return `${hours - 12}:00 pm`;
+    const formattedHours = String(hours - 12).padStart(2, '0');
+    return `${formattedHours}:${minutes} pm`;
   }
-  return `${time} am`;
+
+  const formattedHours = String(hours).padStart(2, '0');
+  return `${formattedHours}:${minutes} am`;
 }
 
-export {formatAs12HourClock};
+export {formatAs12HourClock};

format-clock-edge-cases/timeConverter.test.js

@@ -2,10 +2,94 @@ import {formatAs12HourClock} from "./timeConverter.js";
 import assert from "node:assert";
 import test from "node:test";
 
-test("correctly convert time after 12:00", function(){
+test("correctly convert hours after 12:00", () => {
     assert.equal(formatAs12HourClock("23:00"), "11:00 pm");
 });
 
-test("can correctly convert morning time", function() {
+test("correctly convert minutes after 12:00", () => {
+    assert.equal(formatAs12HourClock("23:53"), "11:53 pm");
+});
+
+test("can correctly convert morning time", () => {
     assert.equal(formatAs12HourClock("08:00"), "08:00 am");
 });
+
+test("can correctly convert morning time minutes", () => {
+    assert.equal(formatAs12HourClock("08:30"), "08:30 am");
+});
+
+test("can correctly convert morning time minutes", () => {
+    assert.equal(formatAs12HourClock("08:34"), "08:34 am");
+});
+
+test("can successfully convert midnight time", () =>
+    assert.equal(formatAs12HourClock("24:00"), "12:00 am"));
+
+test("correctly convert midnight 00:00", () => {
+    assert.equal(formatAs12HourClock("00:00"), "12:00 am");
+});
+
+test("correctly convert noon 12:00", () => {
+    assert.equal(formatAs12HourClock("12:00"), "12:00 pm");
+});
+
+test("correctly convert boundary time around noon", () => {
+    assert.equal(formatAs12HourClock("11:59"), "11:59 am");
+    assert.equal(formatAs12HourClock("12:01"), "12:01 pm");
+});
+
+test("correctly convert early afternoon hours", () => {
+    assert.equal(formatAs12HourClock("13:00"), "01:00 pm");
+});
+
+test("correctly convert single-digit morning hours if supported", () => {
+    assert(formatAs12HourClock("08:30"), "08:30am");
+});
+
+/*
+Edge cases:
+Correctly convert hours after 12:00
+Input | Expected
+23:00   11:00 pm
+
+Correctly convert afternoon hours and minutes
+Input | Expected
+23:00   11:53 pm
+
+Correctly convert morning time and minutes
+Input | Expected
+08:00   08:00 am
+
+Correctly convert morning time and minutes
+Input | Expected
+08:30   08:30 am
+
+Correctly convert morning time and minutes
+Input | Expected
+08:34   08:34 am
+
+Correctly convert midnight time
+Input | Expected
+24:00   12:00 am
+
+Correctly convert midnight
+Input | Expected
+00:00   12:00 am
+
+Correctly convert noon
+Input | Expected
+12:00   12:00 pm
+
+Correctly convert boundary time around noon
+Input | Expected
+11:59   11:59 am
+12:01   12:01 pm
+
+Correctly convert early afternoon hours 
+Input | Expected
+13:00   1:00 pm
+
+Correctly convert single-digit morning hours if supported
+Input | Expected
+08:30   8:30 am
+*/