Week 5 — Arrays & Objects 🗂️

You're going to manage a list of students. By the end you'll have practiced everything you'll do every single day in real code: arrays, objects, and arrays of objects.

Setup

1. Fork this repo to your account.
2. Clone it locally and open in your editor.
3. Open index.html in the browser. Open the console (F12).
4. Edit challenges.js. Refresh the page to see new output.

Tasks

Task 1 — Array Basics 📋

Start with this array:

const fruits = ["apple", "banana", "orange"];

Do the following, in order:

1. Add "mango" to the end of the array
2. Remove the first item from the array (use .shift())
3. Log the final array
4. Log how many items are in it (use .length)

Expected output:

[ 'banana', 'orange', 'mango' ]
3

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Task 2 — forEach Loop 🔁

Given this array:

const cities = ["Mogadishu", "Hargeisa", "Bosaso", "Garowe"];

Use .forEach() to log each city in this format:

1. Mogadishu
2. Hargeisa
3. Bosaso
4. Garowe

💡 The forEach callback can take a second argument which is the index. Look it up if you forget the syntax.

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Task 3 — Build an Object 👤

Create an object called student with these properties:

• name (string) — your name
• age (number) — any number
• isEnrolled (boolean) — set to true

Then:

1. Log the student's name using dot notation (student.name)
2. Update the age property to be 1 higher
3. Log the whole object

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Task 4 — Array of Objects 🎓

Given this array:

const students = [
  { name: "Fatuma",  score: 92 },
  { name: "Asha",    score: 68 },
  { name: "Khadija", score: 85 }
];

Use .forEach() to log a line for each student:

Fatuma scored 92
Asha scored 68
Khadija scored 85

🎯 Why this matters: this is exactly the shape of data every API will give you. Lock it in now.

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✅ When you're done

• All 4 tasks log the expected output
• You used .forEach() (not for loops)
• You used const for things that don't change, let only if needed

Submitting

git add .
git commit -m "Complete Week 5 arrays & objects assignment"
git push

Submit your repo link.

🚀 Stretch (optional)

Add a Task 5: Take the students array from Task 4 and use .forEach() to log only the names of students who scored 70 or higher. (We'll learn .filter() next week to do this more elegantly!)