Web-Dev-For-Beginners/translations/pcm/2-js-basics/4-arrays-loops/assignment.md

Arrays and Loops Assignment

Instructions

Complete di following exercises to practice working wit arrays and loops. Each exercise build on concepts from di lesson and encourage you to apply different loop types and array methods.

Exercise 1: Number Pattern Generator

Create one program wey go list every 3rd number between 1-20 and print am to di console.

Requirements:

• Use one for loop wit custom increment
• Display numbers for user-friendly format
• Add descriptive comments wey go explain your logic

Expected Output:

3, 6, 9, 12, 15, 18

Tip: Modify di iteration-expression for your for loop make e skip numbers.

Exercise 2: Array Analysis

Create one array of at least 8 different numbers and write functions to analyze di data.

Requirements:

• Create one array wey dem go call numbers with at least 8 values
• Write one function findMaximum() wey go return di highest number
• Write one function findMinimum() wey go return di lowest number
• Write one function calculateSum() wey go return di total of all numbers
• Test each function and show di results

Bonus Challenge: Create one function wey go find di second highest number inside di array.

Exercise 3: String Array Processing

Create one array of your favorite movies/books/songs and practice different loop types.

Requirements:

• Create one array wit at least 5 string values
• Use traditional for loop to show items with numbers (1. Item Name)
• Use for...of loop to show items for uppercase
• Use forEach() method to count and show di total characters

Example Output:

Traditional for loop:
1. The Matrix
2. Inception
3. Interstellar

For...of loop (uppercase):
THE MATRIX
INCEPTION
INTERSTELLAR

Character count:
Total characters across all titles: 42

Exercise 4: Data Filtering (Advanced)

Create one program wey go process array of objects wey represent students.

Requirements:

• Create one array of at least 5 student objects with properties: name, age, grade
• Use loops to find students wey be 18 or older
• Calculate di average grade of all students
• Create new array wey go contain only students wey get grades above 85

Example Structure:

const students = [
  { name: "Alice", age: 17, grade: 92 },
  { name: "Bob", age: 18, grade: 84 },
  // Add more pikin dem...
];

Testing Your Code

Test your programs by:

1. Running each exercise inside your browser console
2. Check outputs make sure dem match di expected results
3. Test wit different data sets
4. Check say your code fit handle edge cases (empty arrays, single elements)

Submission Guidelines

Include di following inside your submission:

• Well-commented JavaScript code for each exercise
• Screenshots or text output wey show your programs dey run
• Small explanation of which loop type you choose for each task and why

Rubric

Criteria	Exemplary (3 points)	Adequate (2 points)	Needs Improvement (1 point)
Functionality	All exercises complete correctly wit bonus challenges	All required exercises dey work correctly	Some exercises no complete or get errors
Code Quality	Clean, well-organized code wit descriptive variable names	Code dey work but fit be cleaner	Code messy or e hard to understand
Comments	Comprehensive comments wey explain logic and decisions	Basic comments dey present	Small or no comments
Loop Usage	Shows understanding of different loop types well	Use loops correctly but no variety	Wrong or inefficient loop usage
Testing	Proof of thorough testing wit plenty scenarios	Basic testing dey done	No much evidence of testing

Reflection Questions

After you finish di exercises, think about:

1. Which type of loop you enjoy use pass and why?
2. Wetin challenge you when you dey work wit arrays?
3. How these skills fit help you for real-world web development projects?
4. Wetin you for do different if you gots to optimize your code for better performance?

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