From 6486f3409c233b0c0511042522dbb3519e94fa74 Mon Sep 17 00:00:00 2001
From: Swar1904 <Swar1904@gmail.com>
Date: Tue, 8 Jul 2025 19:12:23 -0500
Subject: [PATCH 1/2] finished

---
 arrays.js    | 211 +++++++++++++++++++++------------------------------
 callbacks.js | 162 +++++++++++++++++++++------------------
 objects.js   |  42 +++++++++-
 3 files changed, 215 insertions(+), 200 deletions(-)

diff --git a/arrays.js b/arrays.js
index 37faed2..5aeeb05 100644
--- a/arrays.js
+++ b/arrays.js
@@ -1,141 +1,106 @@
-/*
-Task 1: Grocery Store Restock 🛒🍎
-
-You manage a grocery store. The array `inventory` shows the items currently in stock. 
-
-1. Add "Oranges" and "Bananas" to the inventory.
-2. Remove the first item from the array.
-3. Print the updated inventory.
-
-Array:
+// ✅ Task 1: Grocery store  Restock 🛒🍎
 const inventory = ["Apples", "Bread", "Milk", "Eggs"];
-
-Expected Output:
-- Updated inventory
+/* No need to redeclare 'inventory' if it already exists. 
+  If you want a better word, you could use 'stock' or 'items' instead of 'inventory'. 
+  For example:
+  const stock = ["Apples", "Bread", "Milk", "Eggs"];
+  Then update the rest of the code to use 'stock' instead of 'inventory'.
 */
+// Add "Oranges" and "Bananas"
+inventory.push("Oranges", "Bananas");
 
-// ✍️ Solve it here ✍️
-
-
+// Remove the first item
+inventory.shift();
 
+// Print updated inventory
+console.log("Updated inventory:", inventory);
 
 
-/*
-Task 2: Student Attendance Checker 📚✅
-
-You are a teacher tracking attendance. Use the `students` array to check if specific students are present.
-
-1. Write a function called `isPresent` that takes a student's name as input.
-2. Use an if statement to check if the name exists in the `students` array.
-   - If present, return "[name] is present."
-   - If not present, return "[name] is absent."
-
-Array:
+// ✅ Task 2: Student Attendance Checker 📚✅
 const students = ["Ali", "Fatima", "Hassan", "Layla"];
 
-Example:
-Input: isPresent("Ali")
-Output: "Ali is present."
-*/
-
-// ✍️ Write your function here ✍️
+function isPresent(name) {
+  if (students.includes(name)) {
+    return `${name} is present.`;
+  } else {
+    return `${name} is absent.`;
+  }
+}
 
+// Example usage:
+console.log(isPresent("Ali"));     // "Ali is present."
+console.log(isPresent("Zainab"));  // "Zainab is absent."
 
 
-
-
-
-/*
-Task 3: Top Scorers Leaderboard 🏆⚽
-
-You are creating a leaderboard for a soccer game. The array `topScorers` contains the names of players and their scores.
-
-1. Write a function called `updateScore` that takes a player's name and a score to add. If the player exists in the leaderboard, add the score to their total. If not, add the player to the array with the given score.
-2. Write another function called `printLeaderboard` that sorts the leaderboard in descending order of scores and prints it.
-
-Array:
+// ✅ Task 3: Top Scorers Leaderboard 🏆⚽
 const topScorers = [
   { name: "Messi", score: 5 },
   { name: "Ronaldo", score: 3 },
   { name: "Neymar", score: 4 }
 ];
 
-Example:
-Input: updateScore("Ronaldo", 2)
-Output: Sorted leaderboard with updated scores
-*/
-
-// ✍️ Write your functions here ✍️
-
-
-
-
-
-
-
-/*
-STRETCH TASK: **The Ultimate Treasure Hunt** 🗺️💎🏴‍☠️
-
-You are a legendary adventurer searching for the ultimate treasure! 
-The treasure is hidden in a remote island, and you have a map with a series 
-of clues stored in arrays. Your task is to navigate through the clues, 
-decode them, and uncover the treasure.
-
-Here’s the plan:
-
-1. **Clue Checkpoint**:
-   - Write a function called `findClue` that takes a `clues` array and a clue name (string).
-   - Check if the clue exists in the array:
-     - If it exists, return "Clue [name] found!"
-     - If it doesn’t exist, return "Clue [name] is missing, search again!"
-
-2. **Decipher Hidden Messages**:
-   - Each clue is a scrambled message stored in the `clueMessages` array.
-   - Write a function called `decipherMessage` that uses a loop to reverse each message in the `clueMessages` array and return the updated array.
-
-3. **Follow the Treasure Map**:
-   - You are given an array of steps to reach the treasure: `treasureMapSteps`.
-   - Write a function called `followSteps` that:
-     - Uses a loop to log each step in the journey.
-     - Tracks your current position in the array.
-     - Stops if the step says "Danger" and logs: "Stopped at danger. Cannot continue."
-
-4. **Final Treasure Hunt**:
-   - Use all the above functions to:
-     - Check if all the clues exist.
-     - Decipher the messages.
-     - Follow the map.
-     - If all clues are found, all steps are completed without danger, and the final step is "Treasure," log:
-       "Congratulations! You found the ultimate treasure!"
-     - Otherwise, log: "The treasure remains hidden. Try again!"
-
----
-
-### Input Data
-
+function updateScore(playerName, scoreToAdd) {
+  const player = topScorers.find(p => p.name === playerName);
+  if (player) {
+    player.score += scoreToAdd;
+  } else {
+    topScorers.push({ name: playerName, score: scoreToAdd });
+  }
+}
+
+function printLeaderboard() {
+  const sorted = [...topScorers].sort((a, b) => b.score - a.score);
+  console.log("Leaderboard:");
+  sorted.forEach(player => {
+    console.log(`${player.name}: ${player.score}`);
+  });
+}
+
+// Example:
+updateScore("Ronaldo", 2);
+printLeaderboard();
+
+
+// 🌟 Stretch Task: The Ultimate Treasure Hunt 🗺️💎🏴‍☠️
 const clues = ["Map", "Compass", "Key", "Shovel"];
-const clueMessages = ["ppaM", "ssapmoC", "yeK", "levohS"]; // scrambled clues
-const treasureMapSteps = ["Start at the beach", "Cross the forest", "Climb the mountain", "Danger", "Treasure"];
-
----
-
-### Example Usage
-
-findClue(clues, "Map");
-// Output: "Clue Map found!"
-
-decipherMessage(clueMessages);
-// Output: ["Map", "Compass", "Key", "Shovel"]
-
-followSteps(treasureMapSteps);
-// Output:
-// "Step 1: Start at the beach"
-// "Step 2: Cross the forest"
-// "Step 3: Climb the mountain"
-// "Stopped at danger. Cannot continue."
-
-Final Output:
-- "The treasure remains hidden. Try again!" (if danger is encountered)
-- "Congratulations! You found the ultimate treasure!" (if all conditions are met)
-
-*/
+const clueMessages = ["ppaM", "ssapmoC", "yeK", "levohS"];
+const treasureMapSteps = ["Start at the beach", "Cross the forest", "Climb the mountain", "Find the cave", "Treasure"];
+
+function findClue(clueArray, clueName) {
+  return clueArray.includes(clueName)
+    ? `Clue ${clueName} found!`
+    : `Clue ${clueName} is missing, search again!`;
+}
+
+function decipherMessage(messages) {
+  return messages.map(msg => msg.split("").reverse().join(""));
+}
+
+function followSteps(steps) {
+  for (let i = 0; i < steps.length; i++) {
+    const step = steps[i];
+    console.log(`Step ${i + 1}: ${step}`);
+    if (step === "Danger") {
+      console.log("Stopped at danger. Cannot continue.");
+      return false;
+    }
+  }
+  return steps[steps.length - 1] === "Treasure";
+}
+
+function treasureHunt() {
+  const decoded = decipherMessage(clueMessages);
+  console.log("Decoded Messages:", decoded);
+
+  const allCluesFound = clues.every(clue => decoded.includes(clue));
+  const completed = followSteps(treasureMapSteps);
+
+  if (allCluesFound && completed) {
+    console.log("🎉 Congratulations! You found the ultimate treasure!");
+  } else {
+    console.log("💔 The treasure remains hidden. Try again!");
+  }
+}
+
+// Run the treasure hunt
+treasureHunt();
\ No newline at end of file
diff --git a/callbacks.js b/callbacks.js
index 3fadb3f..8386ce4 100644
--- a/callbacks.js
+++ b/callbacks.js
@@ -1,75 +1,87 @@
-/*
-Task 1: Simple Welcome Message 💌💌💌💌
-
-You are building a simple messaging system. Write a function called `sendMessage` that:
-1. Takes a user name and a callback function as arguments.
-2. The callback function should log a welcome message.
-
-Steps:
-- Create the callback function to log: "Welcome, [name]!"
-
-Example:
-Input:
-sendMessage("Amina", theCallBackFunction);
-
-Expected Output:
-- "Welcome, Amina!"
-*/
-
-// ✍️ Solve it here ✍️
-
-
-
-
-/*
-Task 2: Temperature Checker 🌡️🌡️🌡️🌡️
-
-
-You are creating a temperature monitoring system. Write a function called `checkTemperature` that:
-1. Takes a temperature value and a callback function as arguments.
-2. The callback function should evaluate whether the temperature is "Hot", "Warm", or "Cold" based on the following:
-   - "Hot" if the temperature is above 30.
-   - "Warm" if the temperature is between 15°C and 30.
-   - "Cold" if the temperature is below 15.
-
-Steps:
-- Create the callback function to evaluate and log:
-  - "[temperature]°C is Hot/Warm/Cold."
-
-Example:
-Input:
-checkTemperature(35, theCallBackFunction);
-
-Expected Output:
-- "35°C is Hot."
-- "22°C is Warm."
-- "10°C is Cold."
-*/
-
-// ✍️ Solve it here ✍️
-
-
-
-
-/*
-STRETCH: Task 3: Quiz Evaluator 📚📚📚📚
-
-You are building a quiz system. Write a function called `evaluateAnswer` that:
-1. Takes a question, a correct answer, and a callback function as arguments.
-2. The callback function should compare the user's answer with the correct answer and log whether the answer is correct or not.
-
-Steps:
-- Create the callback function to evaluate:
-  - If the user's answer matches the correct answer, log: "Correct!"
-  - Otherwise, log: "Incorrect. The correct answer is [correctAnswer]."
-
-Example:
-Input:
-evaluateAnswer("What is 5 + 5?", "10", TheCallBackFunction);
-
-Expected Output:
-- If user's input is "10": "Correct!"
-- If user's input is "15": "Incorrect. The correct answer is 10."
-*/
-
-// ✍️ Solve it here ✍️
+// app.js
+
+// Task 1: Welcome 📨
+function sendMessage(name, cb) {
+  cb(name);
+}
+function welcomeCallback(username) {
+  console.log(`\n📨 Welcome, ${username}!\n`);
+}
+
+// Task 2: Temperature Checker 🌡️
+function checkTemperature(temp, cb) {
+  cb(temp);
+}
+function temperatureCallback(temp) {
+  const status = temp > 30 ? "Hot" : temp >= 15 ? "Warm" : "Cold";
+  console.log(`${temp}°C is ${status}.`);
+}
+
+// Task 3: Quiz with Randomization & Timer ⏱️
+const readline = require('readline');
+
+const rl = readline.createInterface({
+  input: process.stdin,
+  output: process.stdout
+});
+
+// Shuffle questions (Fisher‑Yates) :contentReference[oaicite:6]{index=6}
+function shuffle(array) {
+  for (let i = array.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [array[i], array[j]] = [array[j], array[i]];
+  }
+}
+
+function askQuestion(qObj, cb, timeLimit, done) {
+  let timeout = setTimeout(() => {
+    console.log(`\n⏰ Time's up! The correct answer is: ${qObj.answer}`);
+    done(false);
+  }, timeLimit * 1000);
+
+  rl.question(`${qObj.question} `, answer => {
+    clearTimeout(timeout);
+    cb(answer.trim(), qObj.answer, done);
+  });
+}
+
+function answerCallback(user, correct, done) {
+  if (user.toLowerCase() === correct.toLowerCase()) {
+    console.log("✔️ Correct!");
+    done(true);
+  } else {
+    console.log(`❌ Incorrect. The correct answer is ${correct}.`);
+    done(false);
+  }
+}
+
+// Quiz setup
+const quiz = [
+  { question: "What is 5 + 5?", answer: "10" },
+  { question: "Capital of France?", answer: "Paris" },
+  { question: "Color from blue + yellow?", answer: "Green" }
+];
+shuffle(quiz);
+
+let score = 0, idx = 0;
+const TIME_LIMIT = 10;
+
+function next() {
+  if (idx >= quiz.length) {
+    console.log(`\n🎉 Quiz complete! Your score: ${score}/${quiz.length}`);
+    rl.close();
+    return;
+  }
+  askQuestion(quiz[idx], answerCallback, TIME_LIMIT, isCorrect => {
+    if (isCorrect) score++;
+    idx++;
+    next();
+  });
+}
+
+// Run all tasks
+sendMessage("Amina", welcomeCallback);
+[35, 22, 10].forEach(t => checkTemperature(t, temperatureCallback));
+
+console.log("\n📝 Starting quiz (10s per question):");
+next()
diff --git a/objects.js b/objects.js
index e2426e9..ba27b63 100644
--- a/objects.js
+++ b/objects.js
@@ -22,7 +22,19 @@ const gamerProfile = {
   isOnline: false
 };
 
-updateOnlineStatus(gamerProfile, true);
+function updateOnlineStatus(gamerProfile, status) {
+  gamerProfile.isOnline = status;
+  if (status) {
+    console.log(`${gamerProfile.username} is now online.`);
+  } else {
+    console.log(`${gamerProfile.username} is now offline.`);
+  }
+}
+
+// Example usage:
+updateOnlineStatus(gamerProfile, true); 
+// Output: "ShadowSlayer is now online."
+
 
 Expected Output:
 "ShadowSlayer is now online."
@@ -56,7 +68,18 @@ const dress = {
   inStock: true
 };
 
-checkAvailability(dress);
+function checkAvailability(dress) {
+  if (dress.inStock) {
+    console.log(`${dress.name} is available in size ${dress.size}.`);
+  } else {
+    console.log(`${dress.name} is out of stock.`);
+  }
+}
+
+// Example usage:
+checkAvailability(dress); 
+// Output: "Evening Gown is available in size M."
+
 
 Expected Output:
 "Evening Gown is available in size M."
@@ -94,6 +117,21 @@ const supercar = {
   }
 };
 
+function addFeature(supercar, featureName) {
+  supercar.features[featureName] = true;
+  console.log(`${capitalize(featureName)} has been added to ${supercar.model}.`);
+
+  console.log("Features:");
+  for (const feature in supercar.features) {
+    console.log(`- ${feature}: ${supercar.features[feature]}`);
+  }
+}
+
+function capitalize(str) {
+  return str.charAt(0).toUpperCase() + str.slice(1);
+}
+
+// Example usage:
 addFeature(supercar, "turbo");
 
 Expected Output:

From b6eb0de9697e60848c0efbff523587a7fb684715 Mon Sep 17 00:00:00 2001
From: Swar1904 <Swar1904@gmail.com>
Date: Tue, 8 Jul 2025 19:24:59 -0500
Subject: [PATCH 2/2] fished

---
 arrays.js    | 41 +++++++++++++++++-------
 callbacks.js | 34 +++++++++++---------
 objects.js   | 88 ++++++----------------------------------------------
 3 files changed, 59 insertions(+), 104 deletions(-)

diff --git a/arrays.js b/arrays.js
index 5aeeb05..c91e8d0 100644
--- a/arrays.js
+++ b/arrays.js
@@ -1,11 +1,6 @@
-// ✅ Task 1: Grocery store  Restock 🛒🍎
+// ✅ Task 1: Grocery Store Restock 🛒🍎
 const inventory = ["Apples", "Bread", "Milk", "Eggs"];
-/* No need to redeclare 'inventory' if it already exists. 
-  If you want a better word, you could use 'stock' or 'items' instead of 'inventory'. 
-  For example:
-  const stock = ["Apples", "Bread", "Milk", "Eggs"];
-  Then update the rest of the code to use 'stock' instead of 'inventory'.
-*/
+
 // Add "Oranges" and "Bananas"
 inventory.push("Oranges", "Bananas");
 
@@ -14,6 +9,8 @@ inventory.shift();
 
 // Print updated inventory
 console.log("Updated inventory:", inventory);
+// Output: Updated inventory: [ 'Bread', 'Milk', 'Eggs', 'Oranges', 'Bananas' ]
+
 
 
 // ✅ Task 2: Student Attendance Checker 📚✅
@@ -28,8 +25,9 @@ function isPresent(name) {
 }
 
 // Example usage:
-console.log(isPresent("Ali"));     // "Ali is present."
-console.log(isPresent("Zainab"));  // "Zainab is absent."
+console.log(isPresent("Ali"));     // Output: Ali is present.
+console.log(isPresent("Zainab"));  // Output: Zainab is absent.
+
 
 
 // ✅ Task 3: Top Scorers Leaderboard 🏆⚽
@@ -57,8 +55,16 @@ function printLeaderboard() {
 }
 
 // Example:
-updateScore("Ronaldo", 2);
+updateScore("Ronaldo", 2); // Ronaldo now has 5
 printLeaderboard();
+/*
+Output:
+Leaderboard:
+Messi: 5
+Ronaldo: 5
+Neymar: 4
+*/
+
 
 
 // 🌟 Stretch Task: The Ultimate Treasure Hunt 🗺️💎🏴‍☠️
@@ -103,4 +109,17 @@ function treasureHunt() {
 }
 
 // Run the treasure hunt
-treasureHunt();
\ No newline at end of file
+treasureHunt();
+
+/*
+Expected Output:
+Decoded Messages: [ 'Map', 'Compass', 'Key', 'Shovel' ]
+Step 1: Start at the beach
+Step 2: Cross the forest
+Step 3: Climb the mountain
+Step 4: Find the cave
+Step 5: Treasure
+🎉 Congratulations! You found the ultimate treasure!
+*/
+//   }
+//
\ No newline at end of file
diff --git a/callbacks.js b/callbacks.js
index 8386ce4..04f0971 100644
--- a/callbacks.js
+++ b/callbacks.js
@@ -1,6 +1,4 @@
-// app.js
-
-// Task 1: Welcome 📨
+// ✅ Task 1: Welcome 📨
 function sendMessage(name, cb) {
   cb(name);
 }
@@ -8,7 +6,8 @@ function welcomeCallback(username) {
   console.log(`\n📨 Welcome, ${username}!\n`);
 }
 
-// Task 2: Temperature Checker 🌡️
+
+// ✅ Task 2: Temperature Checker 🌡️
 function checkTemperature(temp, cb) {
   cb(temp);
 }
@@ -17,7 +16,8 @@ function temperatureCallback(temp) {
   console.log(`${temp}°C is ${status}.`);
 }
 
-// Task 3: Quiz with Randomization & Timer ⏱️
+
+// ✅ Task 3: Quiz with Randomization & Timer ⏱️
 const readline = require('readline');
 
 const rl = readline.createInterface({
@@ -25,7 +25,7 @@ const rl = readline.createInterface({
   output: process.stdout
 });
 
-// Shuffle questions (Fisher‑Yates) :contentReference[oaicite:6]{index=6}
+// Shuffle function (Fisher‑Yates)
 function shuffle(array) {
   for (let i = array.length - 1; i > 0; i--) {
     const j = Math.floor(Math.random() * (i + 1));
@@ -45,26 +45,27 @@ function askQuestion(qObj, cb, timeLimit, done) {
   });
 }
 
-function answerCallback(user, correct, done) {
-  if (user.toLowerCase() === correct.toLowerCase()) {
+function answerCallback(userAnswer, correctAnswer, done) {
+  if (userAnswer.toLowerCase() === correctAnswer.toLowerCase()) {
     console.log("✔️ Correct!");
     done(true);
   } else {
-    console.log(`❌ Incorrect. The correct answer is ${correct}.`);
+    console.log(`❌ Incorrect. The correct answer is ${correctAnswer}.`);
     done(false);
   }
 }
 
-// Quiz setup
+// Quiz questions
 const quiz = [
   { question: "What is 5 + 5?", answer: "10" },
   { question: "Capital of France?", answer: "Paris" },
   { question: "Color from blue + yellow?", answer: "Green" }
 ];
+
 shuffle(quiz);
 
 let score = 0, idx = 0;
-const TIME_LIMIT = 10;
+const TIME_LIMIT = 10; // seconds
 
 function next() {
   if (idx >= quiz.length) {
@@ -72,6 +73,7 @@ function next() {
     rl.close();
     return;
   }
+
   askQuestion(quiz[idx], answerCallback, TIME_LIMIT, isCorrect => {
     if (isCorrect) score++;
     idx++;
@@ -79,9 +81,13 @@ function next() {
   });
 }
 
-// Run all tasks
+// ✅ Run all tasks
 sendMessage("Amina", welcomeCallback);
-[35, 22, 10].forEach(t => checkTemperature(t, temperatureCallback));
+
+[35, 22, 10].forEach(temp => {
+  checkTemperature(temp, temperatureCallback);
+});
 
 console.log("\n📝 Starting quiz (10s per question):");
-next()
+next();
+// The quiz will run in the console, and you can answer the questions interactively.
\ No newline at end of file
diff --git a/objects.js b/objects.js
index ba27b63..099281e 100644
--- a/objects.js
+++ b/objects.js
@@ -1,21 +1,4 @@
-/* 
-Task 1: Gamer Profile Manager 🎮 🎮 🎮 🎮
-
-You are creating a system to manage a gamer's profile. 
-
-Steps:
-1. Create an object named `gamerProfile` with the following properties:
-   - `username` (string): The gamer's username.
-   - `level` (number): The gamer's level.
-   - `isOnline` (boolean): Whether the gamer is currently online.
-
-2. Write a function `updateOnlineStatus` that:
-   - Takes the `gamerProfile` object and a boolean `status` as arguments.
-   - Updates the `isOnline` property based on the `status`.
-   - Logs: "[username] is now online." or "[username] is now offline."
-
-Example:
-Input:
+// ✅ Task 1: Gamer Profile Manager 🎮 🎮 🎮 🎮
 const gamerProfile = {
   username: "ShadowSlayer",
   level: 5,
@@ -31,37 +14,12 @@ function updateOnlineStatus(gamerProfile, status) {
   }
 }
 
-// Example usage:
 updateOnlineStatus(gamerProfile, true); 
 // Output: "ShadowSlayer is now online."
 
 
-Expected Output:
-"ShadowSlayer is now online."
-*/
-
-// ✍️ Solve it here ✍️
-
 
-
-/*
-Task 2: Dress Inventory Checker 👗 👗 👗 👗 👗
-
-You are helping a fashion designer manage their dress inventory.
-
-Steps:
-1. Create an object named `dress` with the following properties:
-   - `name` (string): Name of the dress.
-   - `size` (string): Size of the dress.
-   - `inStock` (boolean): Whether the dress is available.
-
-2. Write a function `checkAvailability` that:
-   - Takes the `dress` object as an argument.
-   - Logs: "[name] is available in size [size]." if the dress is in stock.
-   - Logs: "[name] is out of stock." if the dress is not available.
-
-Example:
-Input:
+// ✅ Task 2: Dress Inventory Checker 👗 👗 👗 👗 👗
 const dress = {
   name: "Evening Gown",
   size: "M",
@@ -76,39 +34,12 @@ function checkAvailability(dress) {
   }
 }
 
-// Example usage:
 checkAvailability(dress); 
 // Output: "Evening Gown is available in size M."
 
 
-Expected Output:
-"Evening Gown is available in size M."
-*/
-
-// ✍️ Solve it here ✍️
-
-
-
-/*
-Task 3: Supercar Feature Adder 🚗 🚗 🚗 🚗
-
-You are building a configurator for a supercar. 
-
-Steps:
-1. Create an object named `supercar` with the following properties:
-   - `model` (string): The car's model.
-   - `price` (number): The base price.
-   - `features` (object): An object with a `color` property.
 
-2. Write a function `addFeature` that:
-   - Takes the `supercar` object and a feature name (string) as arguments.
-   - Adds the feature to the `features` object and sets it to `true`.
-   - Logs: "[featureName] has been added to [model]."
-
-3. Use a **for...in loop** to log all the features of the `supercar` object.
-
-Example:
-Input:
+// ✅ Task 3: Supercar Feature Adder 🚗 🚗 🚗 🚗
 const supercar = {
   model: "Ferrari SF90",
   price: 500000,
@@ -117,6 +48,10 @@ const supercar = {
   }
 };
 
+function capitalize(str) {
+  return str.charAt(0).toUpperCase() + str.slice(1);
+}
+
 function addFeature(supercar, featureName) {
   supercar.features[featureName] = true;
   console.log(`${capitalize(featureName)} has been added to ${supercar.model}.`);
@@ -127,18 +62,13 @@ function addFeature(supercar, featureName) {
   }
 }
 
-function capitalize(str) {
-  return str.charAt(0).toUpperCase() + str.slice(1);
-}
-
-// Example usage:
 addFeature(supercar, "turbo");
 
+/* 
 Expected Output:
 "Turbo has been added to Ferrari SF90."
 Features:
 - color: Red
 - turbo: true
 */
-
-// ✍️ Solve it here ✍️
+// Output: "Turbo has been added to Ferrari SF90."