Build Real JavaScript Apps | Final Projects (MCQs)

1.What is the main purpose of an e-commerce cart?

a) Display products only
b) Store selected products before checkout
c) Process payments
d) Create user accounts

2. Which JavaScript concept is essential for adding and removing items from a cart?

a) Events
b) Arrays
c) Loops
d) CSS

3. Which storage method is commonly used to save cart data?

a) Variables
b) Cookies only
c) LocalStorage
d) Console

4. A restaurant menu filter app mainly uses which JavaScript feature?

a) Timers
b) Fetch API
c) Array filtering
d) Classes

5.Which method is commonly used to filter menu items by category?

a) map()
b) filter()
c) reduce()
d) push()

6. What is the main goal of a personal finance app?

a) Send emails
b) Track income and expenses
c) Play videos
d) Create designs

7. Which data structure is best for storing multiple transactions?

a) String
b) Number
c) Array
d) Boolean

8. Each transaction in a finance app is best stored as a:

a) Variable
b) Function
c) Object
d) Loop

9. Which feature helps keep finance data after refreshing the page?

a) Session variables
b) LocalStorage
c) setTimeout
d) DOM only

10. A quiz app mainly depends on which JavaScript concept?

a) Events
b) Timers
c) Classes
d) Modules

11. Which structure is best for storing quiz questions and answers?

a) String
b) Number
c) Object
d) Array of objects

12. How is the quiz score usually calculated?

a) Using CSS
b) Using event listeners and logic
c) Using HTML only
d) Using images

13. Which concept improves user experience in final projects?

a) Console logs
b) Dynamic UI updates
c) Comments
d) Alerts only

14. Which JavaScript feature is common to all final projects?

a) DOM manipulation
b) CSS animations
c) Server-side code
d) Databases

15. Final projects are important because they:

a) Reduce coding practice
b) Replace learning basics
c) Demonstrate real-world skills
d) Avoid JavaScript logic

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