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KalVin TechSol Reactjs Developer Interview Questions and Answers

Updated 1 May 2024

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Reactjs Developer Interview Questions

user image Anonymous

posted on 1 May 2024

Interview experience
4
Good
Difficulty level
Easy
Duration
2-4 weeks
Result
Selected Selected

I applied via Job Portal and was interviewed before May 2023.

2 Interview Rounds

1

Technical Round (1 Question)

  • Q1. Conceptual questions about Javascript and React js
2

One-on-one Round (1 Question)

  • Q1. Some JS code snippets to solve

Interview questions from similar companies

Interview experience
4
Good
Difficulty level
Easy
Duration
Less than 2 weeks
Result
Selected Selected

I applied via Recruitment Consulltant and was interviewed in Oct 2024.

2 Interview Rounds

1

Technical Round (5 Questions)

  • Q1. Component lifecycle
  • Q2. What is DOM tree?
  • Q3. What is the difference between props and state?
  • Q4. What is redux and when to use it and when not to use it?
  • Q5. Two arrays passed to one function, then remove the elements passed from source array and present in another array
2

Client Interview Round (5 Questions)

  • Q1. What is DOM tree
  • Q2. What are lifecycle methods of react? How we can achieve same in functional components?
  • Q3. What is redux? Explain its architecture.
  • Q4. When do we use any in typescript?
  • Q5. What is the checklist for improving performance of React application?

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Duration
2-4 weeks
Result
No response

I applied via Recruitment Consulltant and was interviewed in Sep 2024.

1 Interview Round

1

Technical Round (16 Questions)

  • Q1. What is hosting and closer
  • Q2. What is difference between var let and const give me an explanation on what block scope
  • Q3. What is asynchronous and how it works
  • Q4. Tell me the output 1)a = 20; console.log(a); var a; 2)b=10; console.log(b); let b; 3)let a =5; if(a<5){ let b = " a lessthen 5"; }else{ let b = "b is grater the...read more
  • Q5. Give a div with text and display center of the page and apply animation using HTML and css
  • Q6. What are semantic tags and explain
  • Q7. How can we write responsive for web page
  • Q8. What is the difference between CSS and SASS? what is the use of Sass
  • Q9. Event propagation
  • Q10. How would you validate the form using HTML? How do you validate the phone number with the country code?
  • Q11. Which test library you use why it usecase
  • Q12. Tell me mounting and shallow concept in testing library
  • Q13. What is redux-toolkit and what difference b/w redux and redux-toolkit
  • Q14. How api call handle in redux and how can you get and display user name from redux
  • Q15. React hooks and how optimization
  • Q16. Why we need thank in redux

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Duration
4-6 weeks
Result
No response

1 Interview Round

1

Technical Round (2 Questions)

  • Q1. React basic,event loop, Lazy Loading, Suspense, Javascript basics
  • Q2. Create counter application

Reactjs Developer Interview Questions

Capgemini user image anjali rastogi

posted on 5 Dec 2024

Interview experience
4
Good
Difficulty level
-
Duration
-
Result
-

1 Interview Round

1

Technical Round (1 Question)

  • Q1. What is client side and server side rendering
Interview experience
5
Excellent
Difficulty level
-
Duration
-
Result
-

1 Interview Round

1

Technical Round (2 Questions)

  • Q1. Flat the array without using the inbuilt methods
  • Q2. Sort the given objects based on the ages

Reactjs Developer Interview Questions

TCS user image Samiksha Sajane

posted on 31 Jul 2024

Interview experience
4
Good
Difficulty level
-
Duration
-
Result
-

1 Interview Round

1

Technical Round (5 Questions)

  • Q1. Explain useSelector
  • Q2. Optimization in react
  • Q3. What is JSX in react
  • Q4. Explain redux flow in react
  • Q5. Stateful and stateless components

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
-
Duration
-
Result
-

1 Interview Round

1

Technical Round (2 Questions)

  • Q1. What do you mean by redux and how to use redux
  • Q2. What is the use of Context Api in React

Skills evaluated in this interview

Reactjs Developer Interview Questions

IBM user image Niharika Thakur

posted on 17 Dec 2024

Interview experience
3
Average
Difficulty level
Easy
Duration
2-4 weeks
Result
No response

I applied via Company Website and was interviewed in Jun 2024.

2 Interview Rounds

1

Aptitude Test Round

Got a link on mail to give online clearance test. 25 questions on react, Js and html-css

2

One-on-one Round (1 Question)

  • Q1. Build a login page
Interview experience
5
Excellent
Difficulty level
Easy
Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed before Aug 2023.

1 Interview Round

1

Technical Round (2 Questions)

  • Q1. What is the difference between states and props ?
  • Q2. How are data passed from children to parents in react component?

Interview Preparation Tips

Topics to prepare for Genpact Reactjs Developer interview:
  • React.Js
  • HTML
  • CSS
  • Javascript
Interview preparation tips for other job seekers - Know basic concepts of React.

Skills evaluated in this interview

KalVin TechSol Interview FAQs

How many rounds are there in KalVin TechSol Reactjs Developer interview?
KalVin TechSol interview process usually has 2 rounds. The most common rounds in the KalVin TechSol interview process are Technical and One-on-one Round.
What are the top questions asked in KalVin TechSol Reactjs Developer interview?

Some of the top questions asked at the KalVin TechSol Reactjs Developer interview -

  1. Conceptual questions about Javascript and React...read more
  2. Some JS code snippets to so...read more

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