Java - Frontend - FAQs - Part 2

 


Java – Frontend - Topic wise FAQs


Advanced JavaScript

1. What are the key differences between JavaScript and other programming languages?

2. Explain the concept of closures in JavaScript and how they are used.

3. How would you handle asynchronous operations in JavaScript using callbacks or promises?

4. What is the purpose of the "this" keyword in JavaScript, and how does its value change based on context?

5. How would you handle errors and exceptions in JavaScript using try-catch blocks?

6. Explain the difference between "undefined" and "null" in JavaScript.

7. How would you create and manipulate JavaScript objects and arrays?

8. What is event delegation in JavaScript, and how would you implement it?

9. Explain the concept of hoisting in JavaScript and how it affects variable and function declarations.

10. How would you use JavaScript modules to organize and share code? Shopping Cart Application

1. Scenario: Adding Items to the Cart

• How would you implement the functionality to add items to the shopping cart?

• How would you handle scenarios where the item is out of stock or the quantity exceeds the available stock?

2. Scenario: Updating Cart Items

• How would you allow users to update the quantity or remove items from the shopping cart?

• How would you handle scenarios where the item is no longer available or the quantity is invalid?

3. Scenario: Applying Discounts or Coupons

• How would you implement the functionality to apply discounts or coupons to the shopping cart?

• How would you handle scenarios where the discount is not applicable or has expired?

4. Scenario: Calculating Total Price

• How would you calculate the total price of the items in the shopping cart, including taxes and shipping charges?

• How would you handle scenarios where the prices or tax rates change dynamically?

5. Scenario: Checking Out and Placing an Order

• How would you implement the checkout process, including capturing user information and payment details?

• How would you handle scenarios where the payment fails or the order cannot be processed? Coding Questions

1. Scenario: Reverse a String

• Write a function to reverse a given string in JavaScript.

2. Scenario: Find the Largest Number

• Write a function to find the largest number in an array of numbers using JavaScript.

3. Scenario: Palindrome Check

• Write a function to check if a given string is a palindrome using JavaScript.

4. Scenario: FizzBuzz

• Write a program that prints the numbers from 1 to 100, but for multiples of three, print "Fizz" instead of the number, and for multiples of five, print "Buzz." For numbers that are multiples of both three and five, print "FizzBuzz."

5. Scenario: Fibonacci Sequence

• Write a function to generate the Fibonacci sequence up to a given number using JavaScript. Developing Fully Functional Responsive Prototypes using AngularJS 2, HTML/HTML5, CSS3, JavaScript, jQuery, and Bootstrap

1. Scenario: Building a Responsive Navigation Menu

• How would you create a responsive navigation menu that adapts to different screen sizes using HTML, CSS, and JavaScript?

2. Scenario: Implementing Form Validation

• How would you implement client-side form validation using JavaScript or AngularJS 2 to ensure data integrity and user-friendly error handling?

3. Scenario: Creating a Slideshow or Image Carousel

• How would you develop a responsive slideshow or image carousel using HTML, CSS, and JavaScript libraries like jQuery or AngularJS 2?

4. Scenario: Implementing Drag and Drop Functionality

• How would you enable drag and drop functionality for elements on a web page using HTML5, CSS3, and JavaScript?

5. Scenario: Integrating Third-Party APIs or Services

• How would you integrate and interact with third-party APIs or services using JavaScript, AngularJS 2, and AJAX requests?

6. Scenario: Creating a Responsive Navbar

• How would you implement a responsive navigation bar that collapses into a hamburger menu on smaller screens using HTML, CSS, and AngularJS 2?

7. Scenario: Building a Product Listing Page

• How would you create a product listing page with responsive grid layout using AngularJS 2, HTML5, CSS3, and Bootstrap?

8. Scenario: Implementing Search Functionality

• How would you implement a search feature that filters products in real-time based on user input using AngularJS 2 and JavaScript?

9. Scenario: Developing a Carousel Slider

• How would you create a responsive carousel slider with image thumbnails using AngularJS 2, HTML5, CSS3, and jQuery?

10. Scenario: Building a Contact Form

• How would you develop a responsive contact form with validation using AngularJS 2, HTML5, CSS3, and JavaScript?

11. Scenario: Implementing Dynamic Content Loading

• How would you load dynamic content asynchronously based on user interactions using AngularJS 2, jQuery, and AJAX requests?

12. Scenario: Creating a Pricing Table

• How would you build a responsive pricing table with different pricing plans and features using AngularJS 2, HTML5, CSS3, and Bootstrap?

13. Scenario: Implementing Image Lazy Loading

• How would you optimize the loading of images on a web page using lazy loading techniques with AngularJS 2, JavaScript, and libraries like LazyLoad or Intersection Observer?

14. Scenario: Developing a Tabbed Interface

• How would you create a tabbed interface with dynamic content loading using AngularJS 2, HTML5, CSS3, and JavaScript?

15. Scenario: Building a Shopping Cart Functionality

• How would you implement a responsive shopping cart functionality that allows users to add, remove, and update items using AngularJS 2, HTML5, CSS3, and JavaScript?

16. Scenario: Implementing User Authentication

• How would you develop a user authentication system with login and registration forms using AngularJS 2, HTML5, CSS3, and a backend API for authentication?

17. Scenario: Creating a Responsive Image Gallery

• How would you build a responsive image gallery with thumbnails and lightbox functionality using AngularJS 2, HTML5, CSS3, and a JavaScript library like Lightbox or Fancybox?

18. Scenario: Developing a Form Validation Library

• How would you create a reusable form validation library using AngularJS 2, HTML5, CSS3, and JavaScript to handle common form validation scenarios?

19. Scenario: Implementing a Modal Popup

• How would you implement a responsive modal popup for displaying additional information or user interactions using AngularJS 2, HTML5, CSS3, and JavaScript?

20. Scenario: Building a Responsive Login Page

• How would you create a responsive login page with input validation and error handling using AngularJS 2, HTML5, CSS3, and JavaScript?

21. Scenario: Implementing Drag and Drop Functionality

• How would you enable drag and drop functionality to reorder items in a list using AngularJS 2, HTML5, CSS3, and JavaScript?

22. Scenario: Developing an Interactive Form Wizard

• How would you build a responsive form wizard with multiple steps and validations using AngularJS 2, HTML5, CSS3, and JavaScript?

23. Scenario: Creating a Sticky Header

• How would you create a sticky header that remains fixed at the top of the page while scrolling using AngularJS 2, HTML5, CSS3, and JavaScript?

24. Scenario: Implementing Dynamic Chart Visualizations

• How would you generate dynamic charts or graphs based on data using AngularJS 2, HTML5, CSS3, and a JavaScript library like Chart.js or D3.js?

25. Scenario: Building a Responsive Testimonials Section

• How would you develop a responsive testimonials section that displays testimonials in a slider or carousel format using AngularJS 2, HTML5, CSS3, and Bootstrap?

26. Scenario: Implementing Infinite Scrolling

• How would you implement infinite scrolling to load more content dynamically as the user scrolls down the page using AngularJS 2, HTML5, CSS3, and JavaScript?

27. Scenario: Creating a Responsive FAQ Section

• How would you build a responsive frequently asked questions (FAQ) section with collapsible question-answer pairs using AngularJS 2, HTML5, CSS3, and JavaScript?

28. Scenario: Developing a Responsive Video Player

• How would you create a responsive video player with play, pause, and fullscreen functionality using AngularJS 2, HTML5, CSS3, and JavaScript?

29. Scenario: Implementing a Responsive Image Slider

• How would you build a responsive image slider with automatic transitions and navigation controls using AngularJS 2, HTML5, CSS3, and jQuery?

30. Scenario: Creating a Responsive Portfolio Showcase

• How would you develop a responsive portfolio showcase with filtering and sorting options using AngularJS 2, HTML5, CSS3, and JavaScript?

31. Scenario: Implementing a Scroll-to-Top Button

• How would you add a scroll-to-top button that appears when the user scrolls down and allows them to quickly navigate to the top of the page using AngularJS 2, HTML5, CSS3, and JavaScript?

32. Scenario: Building a Responsive Pricing Calculator

• How would you create a responsive pricing calculator that dynamically calculates and displays the total price based on user-selected options using AngularJS 2, HTML5, CSS3, and JavaScript?

33. Scenario: Implementing Image Zooming Functionality

• How would you enable image zooming on hover or click using AngularJS 2, HTML5, CSS3, and JavaScript?

34. Scenario: Creating a Responsive Test Score Calculator

• How would you develop a responsive test score calculator that calculates the final score based on user inputs and displays the results using AngularJS 2, HTML5, CSS3, and JavaScript?

35. Scenario: Implementing a Responsive Countdown Timer

• How would you create a responsive countdown timer that counts down to a specific date or event using AngularJS 2, HTML5, CSS3, and JavaScript?


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