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CARS24 React Js Frontend Developer Interview Questions and Answers

Updated 2 Dec 2024

CARS24 React Js Frontend Developer Interview Experiences

6 interviews found

Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
Not Selected
Round 1 - Coding Test 

It was based on Javascript. Some web basics like CORS , react rendering patterns. Then JS based output questions. Some were based on JS promise. Function currying.

Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Leetcode DSA problems

React Js Frontend Developer Interview Questions Asked at Other Companies

asked in Simform
Q1. 1. What is difference between abstract class and interface ?
asked in Simform
Q2. 3. What is Difference between primary key and unique key ?
asked in Simform
Q3. 2. What is Arrow Function in Javascripts?
asked in Simform
Q4. 5. Why we require interface and what is interface in java ?
asked in Simform
Q5. 4. how you join three different tables in SQL ?
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Coding Test 

Goof amount of core js questions were asked

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in Mar 2023. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Don’t add your photo or details such as gender, age, and address in your resume. These details do not add any value.
View all Resume tips
Round 2 - Technical 

(3 Questions)

  • Q1. Started with simple questions like hoisting and virtual DOM, then progressed to event loop microtask queue and other concepts.
  • Q2. Asked about debouncing and throttle (I mentioned them in projects). Then told me to write polyfill for those. What is reconciliation in React and how is it working after React 16 and how was it working ear...
  • Q3. Couple of output questions based on closure.

Interview Preparation Tips

Topics to prepare for CARS24 React Js Frontend Developer interview:
  • Closure
  • Reconciliation
  • Virtual DOM
  • Hoisting
  • React Hooks
Interview preparation tips for other job seekers - Don't mention anything that you don't know the depth of. I mentioned reconciliation in my answer while explaining Virtual DOM and he went deep with it and asked about Diffing algorithm and all. Closures are important topics try to solve some output based questions based on them.

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Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Coding questions on React + JS

Interview Preparation Tips

Interview preparation tips for other job seekers - Trust the process and work hard on skills
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via Instahyre and was interviewed in Nov 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all Resume tips
Round 2 - Technical 

(2 Questions)

  • Q1. What is Debouncing in JavaScript?
  • Ans. 

    Debouncing in JavaScript is a technique used to limit the number of times a function is called in a short period of time.

    • Debouncing is used to improve performance and prevent unnecessary function calls.

    • It delays the execution of a function until after a certain amount of time has passed since the last invocation.

    • It is commonly used in scenarios like search bars, scroll events, and input validation.

    • Debouncing can be imp...

  • Answered by AI
  • Q2. What is an Arrow Function?
  • Ans. 

    Arrow functions are a concise way to write functions in JavaScript.

    • Arrow functions have a shorter syntax compared to regular functions.

    • They do not have their own 'this' value.

    • Arrow functions are always anonymous.

    • They are commonly used in React components for event handlers and callbacks.

  • Answered by AI

Interview Preparation Tips

Topics to prepare for CARS24 React Js Frontend Developer interview:
  • ES6 Features
Interview preparation tips for other job seekers - Have strong basics and be prepared for complex coding challenges.

Skills evaluated in this interview

Interview questions from similar companies

I applied via Recruitment Consulltant and was interviewed in Sep 2022. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. ES6-related quest ion,React lifecycle methods.
  • Q2. Difference between foreach and map
  • Ans. 

    foreach and map are both used to iterate over arrays, but map returns a new array while foreach does not.

    • foreach is used to execute a function for each element in an array

    • map creates a new array with the results of calling a function for every array element

    • foreach does not return anything, while map returns a new array

    • map is useful for transforming data in an array

    • foreach is useful for executing a function for each ele...

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - prepare for basic javascript related questions, react hooks, be thorough with all react concepts and redux
Interview experience
4
Good
Difficulty level
Easy
Process Duration
-
Result
-

I applied via Referral and was interviewed in Feb 2024. There was 1 interview round.

Round 1 - Technical 

(1 Question)

  • Q1. Polyfill for bind Closures Call apply bind let const var lexical environment scope output questions
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Create a pagination
  • Ans. 

    Pagination component to display a list of items with page navigation.

    • Create a Pagination component with props for total number of items, items per page, and current page.

    • Calculate total number of pages based on total items and items per page.

    • Display page numbers with previous and next buttons to navigate through pages.

    • Update the list of items displayed based on current page.

    • Handle click events on page numbers and previ

  • Answered by AI
Round 2 - Technical 

(1 Question)

  • Q1. Write a polyfill of JS promise
  • Ans. 

    A polyfill for JS promise is a piece of code that provides support for promises in older browsers.

    • Create a Promise class with resolve, reject, then, and catch methods

    • Implement the executor function to handle the asynchronous operation

    • Use setTimeout to simulate asynchronous behavior

    • Handle chaining of then and catch methods

  • Answered by AI

Skills evaluated in this interview

Interview experience
2
Poor
Difficulty level
Moderate
Process Duration
More than 8 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed before Aug 2023. There was 1 interview round.

Round 1 - Coding Test 

The first round is Hackerrank two algo and one UI test very easy, Second is Fundamentals of JS and React Native one must have a deep understanding of JS to do that I strongly suggest going through Akashay Saini's JS series It'll help and the Third is PS/DS asked some basic A&DS questions can be solved easily with little practice on Leetcode

Interview Preparation Tips

Interview preparation tips for other job seekers - The interview process is very long, The First round was in January second in Feb and the Third in April
Contribute & help others!
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CARS24 Interview FAQs

How many rounds are there in CARS24 React Js Frontend Developer interview?
CARS24 interview process usually has 1-2 rounds. The most common rounds in the CARS24 interview process are Technical, Coding Test and Resume Shortlist.
What are the top questions asked in CARS24 React Js Frontend Developer interview?

Some of the top questions asked at the CARS24 React Js Frontend Developer interview -

  1. What is Debouncing in JavaScri...read more
  2. What is an Arrow Functi...read more
  3. Asked about debouncing and throttle (I mentioned them in projects). Then told m...read more

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CARS24 React Js Frontend Developer Interview Process

based on 6 interviews

1 Interview rounds

  • Coding Test Round
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