Add office photos
Filter interviews by
Appiness Interactive Reactjs Developer Interview Questions and Answers for Experienced
Appiness Interactive Reactjs Developer Interview Experiences for Experienced
1 interview found
I maid a redux store
(1 Question)
- Q1. Why you left your company
- Ans.
Seeking new challenges and growth opportunities
Desire for career advancement
Lack of growth opportunities in current role
Seeking new challenges and learning experiences
Interview questions from similar companies
React Js Frontend Developer Interview Questions & Answers
VELOTIO Technologies
Anonymous
posted on 18 Jun 2024
(7 Questions)
- Q1. What is hoisting
- Ans.
Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during compilation.
Variable declarations are hoisted to the top of their scope but not their initializations.
Function declarations are fully hoisted, meaning they can be called before they are declared.
Hoisting can lead to unexpected behavior if not understood properly.
- Q2. What is throttling
- Ans.
Throttling is a technique used to control the rate at which a function is executed.
Throttling limits the number of times a function can be called over a specified period of time.
It helps in optimizing performance by preventing excessive function calls, especially in scenarios like scroll events or API requests.
Example: Throttling can be used to limit the rate at which a user can resize a window, ensuring smoother perfo
- Q3. What is debouncing
- Ans.
Debouncing is a technique used to limit the number of times a function is called in a short period of time.
Debouncing is often used in scenarios like search bars where you want to wait for the user to finish typing before making an API call.
It involves setting a delay before executing a function after the last time it was called.
Debouncing helps in optimizing performance by reducing unnecessary function calls.
Example: ...
- Q4. What is event coupling
- Ans.
Event coupling is the dependency between different parts of a system based on events.
Event coupling occurs when one component triggers an event that another component listens for.
It can lead to tight coupling between components, making the system harder to maintain.
Reducing event coupling can be achieved by using a centralized event bus or implementing a pub/sub pattern.
Example: A button click event in a UI component t
- Q5. Remove duplicates from array
- Ans.
Use Set to remove duplicates from array of strings
Create a Set from the array to automatically remove duplicates
Convert the Set back to an array to get unique values
Example: const arr = ['apple', 'banana', 'apple', 'orange']; const uniqueArr = [...new Set(arr)];
- Q6. Reverse a Linked List
- Ans.
Reverse a linked list by changing the direction of pointers
Create three pointers: prev, current, next
Iterate through the linked list, updating pointers to reverse the direction
Return the new head of the reversed linked list
- Q7. Explain closure function with an example
- Ans.
Closure function is a function defined inside another function, with access to the outer function's variables.
Closure functions have access to the outer function's variables even after the outer function has finished executing.
They can be used to create private variables and functions in JavaScript.
Example: function outerFunction() { let outerVar = 'I am outer'; function innerFunction() { console.log(outerVar); } retur
Interview Preparation Tips
In ds round, for removing duplicates from array, I was using standard two pointer solution where complexity was 'N' but I was asked why such complicated solution for simple question. I was advised to use hashmap or two loops. First time in my experience where an interviewer has told me to increase the complexity because the optimized solution looks complex.
For the second question - reverse a linked list, it was not even 10 minutes and I was about to finish my coding with right answer(He did not even bother to ask how I solutionized). He told I'm taking too much time and he asked any other question and abruptly ended the call. My interview was scheduled for one hour in which he asked couple of js concept questions, js coding and two dsa questions and it was over in 35 minutes.
Skills evaluated in this interview
Senior Software Developer Interview Questions & Answers
Big Oh Notation
Anonymous
posted on 24 Jan 2024
I applied via Approached by Company and was interviewed in Dec 2023. There was 1 interview round.
(3 Questions)
- Q1. What is Virtual DOM, Explain ?
- Ans.
Virtual DOM is a concept in web development where a lightweight copy of the actual DOM is created and manipulated for efficient rendering.
Virtual DOM is an abstraction of the real DOM.
It is used in frameworks like React to improve performance.
Changes made to the virtual DOM are compared with the actual DOM, and only the necessary updates are applied.
This approach reduces the number of direct manipulations on the actual...
- Q2. What is Higher Order Component ?
- Ans.
Higher Order Component is a function that takes a component and returns a new component with additional functionality.
Higher Order Components (HOCs) are a pattern in React for reusing component logic.
They are functions that accept a component and return a new component with enhanced capabilities.
HOCs can be used for cross-cutting concerns like authentication, logging, or data fetching.
They enable code reuse, compositio...
- Q3. Life Cycle Methods in React
- Ans.
Life Cycle Methods in React
React components have several life cycle methods that are called at different stages of a component's life
These methods allow developers to perform actions like initializing state, fetching data, and updating the UI
Some commonly used life cycle methods are componentDidMount, componentDidUpdate, and componentWillUnmount
Interview Preparation Tips
Skills evaluated in this interview
I applied via Naukri.com and was interviewed in Feb 2024. There were 3 interview rounds.
It was js coding and react native related questions.
(1 Question)
- Q1. It was technical skills of Android and iOS application related react native
(1 Question)
- Q1. It was discussed about your career and judge our professional career.
Interview Preparation Tips
React Js Frontend Developer Interview Questions & Answers
VELOTIO Technologies
Anonymous
posted on 27 Mar 2024
I applied via Referral and was interviewed in Sep 2023. There were 2 interview rounds.
(1 Question)
- Q1. Multiple Questions on basics of JS and react
(1 Question)
- Q1. This was in depth discussion on JS and react
Selected
I applied via Walk-in and was interviewed before May 2023. There was 1 interview round.
(4 Questions)
- Q1. How to design a video streaming platform
- Ans.
Designing a video streaming platform involves considering scalability, user experience, content delivery, and security.
Consider scalability by using a distributed architecture to handle large numbers of concurrent users.
Focus on user experience with intuitive interfaces, personalized recommendations, and seamless playback.
Implement content delivery networks (CDNs) to ensure fast and reliable streaming across different ...
- Q2. What is Single Page application
- Ans.
Single Page Application is a web application that loads a single HTML page and dynamically updates the page as the user interacts with it.
Loads a single HTML page initially
Updates content dynamically without reloading the entire page
Uses AJAX, JavaScript, and frameworks like Angular, React, or Vue.js
Provides a seamless user experience similar to a desktop application
- Q3. What is Ajax calls?
- Ans.
Ajax calls are asynchronous HTTP requests made by the browser to the server without reloading the entire page.
Ajax stands for Asynchronous JavaScript and XML
Used to update parts of a web page without reloading the entire page
Improves user experience by making the website more dynamic
Commonly used in web applications to fetch data from a server
Examples: fetching new emails in Gmail without refreshing the page, updating
- Q4. What are Content Delivery Networks?
- Ans.
Content Delivery Networks (CDNs) are distributed servers that help deliver web content efficiently to users based on their geographic location.
CDNs cache content closer to users for faster delivery
They help reduce latency and improve website performance
Popular CDNs include Akamai, Cloudflare, and Amazon CloudFront
Interview Preparation Tips
- HTML
- CSS
- React.Js
- Nodejs
- SQL
- Problem Solving
- Puzzles
Prepare the basics of HTML CSS JS and some concepts of system designs
Skills evaluated in this interview
(1 Question)
- Q1. In trend java questions
(1 Question)
- Q1. Advance java questions, questions related to microservice and java 8
Software Developer Interview Questions & Answers
Hummingbird Web Solutions
Anonymous
posted on 12 Sep 2023
Selected
I applied via Naukri.com and was interviewed before Sep 2022. There were 3 interview rounds.
(2 Questions)
- Q1. Basic JS questions
- Q2. String Concat through function
Advanced JS, PHP related questions
Interview Preparation Tips
(6 Questions)
- Q1. What are your strengths and weaknesses?
- Q2. Tell me about yourself.
- Q3. What are your salary expectations?
- Q4. What is your family background?
- Q5. Share details of your previous job.
- Q6. Why should we hire you?
Interview Preparation Tips
Appiness Interactive Interview FAQs
Tell us how to improve this page.
Appiness Interactive Interviews By Designations
- Appiness Interactive Business Analyst Interview Questions
- Appiness Interactive Content Writer Interview Questions
- Appiness Interactive Node JS Developer Interview Questions
- Appiness Interactive Python Developer Interview Questions
- Appiness Interactive React Js Frontend Developer Interview Questions
- Appiness Interactive React Native Developer Interview Questions
- Appiness Interactive Reactjs Developer Interview Questions
- Appiness Interactive SEO Executive Interview Questions
- Show more
Interview Questions for Popular Designations
- React Js Frontend Developer Interview Questions
- React Native Developer Interview Questions
- React Developer Interview Questions
- Senior React Native Developer Interview Questions
- android and React Native Developer Interview Questions
- React Js Software Engineer Interview Questions
- Software Developer Interview Questions
- Java Developer Interview Questions
- Show more
Reactjs Developer Interview Questions from Similar Companies
|
Software Developer
49
salaries
|  ₹3 L/yr - ₹12.5 L/yr |
|
UI Developer
33
salaries
| ₹2 L/yr - ₹7.2 L/yr |
|
Front end Developer
20
salaries
| ₹2.4 L/yr - ₹7.5 L/yr |
|
Software Engineer
13
salaries
| ₹4.6 L/yr - ₹15.3 L/yr |
|
Junior Software Developer
11
salaries
| ₹2.7 L/yr - ₹6 L/yr |
Indus Net Technologies
Robosoft Technologies
LTIMindtree
Persistent Systems
Calculate your in-hand salary
- Home >
- Interviews >
- Appiness Interactive Interview Questions >
- Appiness Interactive Reactjs Developer Interview Questions for Experienced
