📊 𝟭𝟬𝟬% 𝗙𝗥𝗘𝗘 𝗕𝗶𝗴 𝗗𝗮𝘁𝗮 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 𝗖𝗼𝘂𝗿𝘀𝗲😍

✅ Free Online Course
💡 Industry-Relevant Skills
🎓 Certification Included

Upskill now and Get Certified 🎓

𝐋𝐢𝐧𝐤 👇:- 
 
https://pdlink.in/4lp7hXQ
 
Get the Govt. of India Incentives on course completion🏆

Here are the 50 JavaScript interview questions for 2024

1. What is JavaScript?
2. What are the data types in JavaScript?
3. What is the difference between null and undefined?
4. Explain the concept of hoisting in JavaScript.
5. What is a closure in JavaScript?
6. What is the difference between “==” and “===” operators in JavaScript?
7. Explain the concept of prototypal inheritance in JavaScript.
8. What are the different ways to define a function in JavaScript?
9. How does event delegation work in JavaScript?
10. What is the purpose of the “this” keyword in JavaScript?
11. What are the different ways to create objects in JavaScript?
12. Explain the concept of callback functions in JavaScript.
13. What is event bubbling and event capturing in JavaScript?
14. What is the purpose of the “bind” method in JavaScript?
15. Explain the concept of AJAX in JavaScript.
16. What is the “typeof” operator used for?
17. How does JavaScript handle errors and exceptions?
18. Explain the concept of event-driven programming in JavaScript.
19. What is the purpose of the “async” and “await” keywords in JavaScript?
20. What is the difference between a deep copy and a shallow copy in JavaScript?
21. How does JavaScript handle memory management?
22. Explain the concept of event loop in JavaScript.
23. What is the purpose of the “map” method in JavaScript?
24. What is a promise in JavaScript?
25. How do you handle errors in promises?
26. Explain the concept of currying in JavaScript.
27. What is the purpose of the “reduce” method in JavaScript?
28. What is the difference between “null” and “undefined” in JavaScript?
29. What are the different types of loops in JavaScript?
30. What is the difference between “let,” “const,” and “var” in JavaScript?
31. Explain the concept of event propagation in JavaScript.
32. What are the different ways to manipulate the DOM in JavaScript?
33. What is the purpose of the “localStorage” and “sessionStorage” objects?
34. How do you handle asynchronous operations in JavaScript?
35. What is the purpose of the “forEach” method in JavaScript?
36. What are the differences between “let” and “var” in JavaScript?
37. Explain the concept of memoization in JavaScript.
38. What is the purpose of the “splice” method in JavaScript arrays?
39. What is a generator function in JavaScript?
40. How does JavaScript handle variable scoping?
41. What is the purpose of the “split” method in JavaScript?
42. What is the difference between a deep clone and a shallow clone of an object?
43. Explain the concept of the event delegation pattern.
44. What are the differences between JavaScript’s “null” and “undefined”?
45. What is the purpose of the “arguments” object in JavaScript?
46. What are the different ways to define methods in JavaScript objects?
47. Explain the concept of memoization and its benefits.
48. What is the difference between “slice” and “splice” in JavaScript arrays?
49. What is the purpose of the “apply” and “call” methods in JavaScript?
50. Explain the concept of the event loop in JavaScript and how it handles asynchronous operations.

Components of Docker

🎓 𝗡𝗔𝗦𝗦𝗖𝗢𝗠 𝗙𝗥𝗘𝗘 𝗖𝗲𝗿𝘁𝗶𝗳𝗶𝗰𝗮𝘁𝗶𝗼𝗻 𝗖𝗼𝘂𝗿𝘀𝗲𝘀 😍

Upskill in today’s most in-demand tech domains and boost your career 🚀

✅ FREE Courses Offered:
- Python
- Java
- HTML/CSS
- Software Programming

💫Perfect for students, freshers, and tech enthusiasts.

𝗘𝗻𝗿𝗼𝗹𝗹 𝗙𝗼𝗿 𝗙𝗥𝗘𝗘👇:- 

https://pdlink.in/3ImMFAB

Get Certified by Top Companies – 100% Free!

Frontend Development Learning Roadmap: From Basics to Advanced

1. Getting Started with Frontend Development

Overview of Frontend Development: Understand the role of frontend developers and the importance of building user interfaces for web applications.

Setting up Development Environment: Install code editors (VSCode, Sublime Text), browsers (Chrome, Firefox), and necessary extensions (Prettier, ESLint).



2. HTML Basics

Structure of HTML: Learn the basic structure of an HTML document, including elements like <!DOCTYPE>, <html>, <head>, and <body>.

Common HTML Tags: Get familiar with common tags such as <div>, <span>, <h1>, <p>, <a>, <img>, and forms (<input>, <button>, <select>).

Forms and Input Elements: Understand how forms work, including text inputs, radio buttons, checkboxes, and form validation.



3. CSS Basics

CSS Syntax and Selectors: Learn how to write CSS rules using selectors and properties.

Box Model: Understand the CSS box model, including margin, padding, border, and content areas.

Styling Text: Learn to style text with font properties, text alignment, line height, and letter spacing.

Layouts: Understand basic layout concepts such as float, positioning, and flexbox.



4. Responsive Design

Media Queries: Learn how to create responsive designs that adapt to different screen sizes and devices.

Fluid Layouts: Use percentage-based widths and relative units like em, rem, vw, and vh to make your layout flexible.

Mobile-First Design: Learn the mobile-first approach to building responsive designs.



5. CSS Advanced Techniques

Flexbox: Master the Flexbox layout system to create complex, responsive layouts with ease.

CSS Grid: Learn how to use the CSS Grid system for two-dimensional layouts.

Animations and Transitions: Understand how to create smooth animations and transitions for interactive user experiences.

Custom Properties (CSS Variables): Use CSS variables for better reusability and maintainability in your styles.



6. JavaScript Basics

JavaScript Syntax: Learn the basic syntax of JavaScript, including variables, operators, and data types.

Functions: Understand how to declare and use functions, including arrow functions.

Control Flow: Learn how to use conditionals (if, else, switch) and loops (for, while) in JavaScript.

DOM Manipulation: Learn how to select, modify, and delete HTML elements using JavaScript.



7. JavaScript Advanced Concepts

Events: Understand how to add event listeners to DOM elements and handle user interactions.

Asynchronous JavaScript: Learn about promises, async/await, and handling asynchronous operations.

Closures: Understand how closures work and their role in JavaScript.

Object-Oriented JavaScript (OOP): Learn the basics of object-oriented programming in JavaScript, including classes and inheritance.



8. Version Control (Git)

Git Basics: Learn how to initialize a Git repository, make commits, and use branches.

GitHub: Understand how to push your code to GitHub, collaborate with others, and manage your projects.

Merging and Resolving Conflicts: Learn how to merge branches and resolve merge conflicts effectively.



9. Frontend Frameworks

React.js: Start learning React, its core concepts like components, hooks, state, and props.

Vue.js: Get familiar with Vue.js for building progressive web applications.

Angular: Learn Angular for creating large-scale applications with TypeScript and its powerful features like dependency injection.

Svelte: Explore Svelte as a more lightweight alternative for building reactive user interfaces.



10. State Management

React State Management: Learn how to use React's useState and useContext hooks for simple state management.

Redux: Understand how Redux can manage global state in larger React applications.

Vuex: Learn Vuex for managing state in Vue.js applications.

Context API (React) and Other Solutions: Explore other state management solutions for various frameworks.

Enjoy our content? Advertise on this channel and reach a highly engaged audience! 👉🏻

It's easy with Telega.io. As the leading platform for native ads and integrations on Telegram, it provides user-friendly and efficient tools for quick and automated ad launches.

⚡️ Place your ad here in three simple steps:

1 Sign up

2 Top up the balance in a convenient way

3 Create your advertising post

If your ad aligns with our content, we’ll gladly publish it.

Start your promotion journey now!