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Praeclarum Tech

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4.9

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Praeclarum Tech React Js Frontend Developer Interview Questions and Answers

Updated 16 Dec 2024

6 Interview questions

🔥 Asked by recruiter 3 times

A React Js Frontend Developer was asked 6mo ago

Q. What is Node.js?

Ans.

Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine that allows developers to run JavaScript code outside of a web browser.

Node.js is used for building server-side applications.
It allows developers to use JavaScript for both client-side and server-side development.
Node.js has a large ecosystem of open-source libraries and frameworks, such as Express.js.
Node.js uses an event-driven, non-blocking ...

🔥 Asked by recruiter 3 times

A React Js Frontend Developer was asked 6mo ago

Q. What is React JS?

Ans.

React JS is a JavaScript library for building user interfaces.

React JS is a declarative, efficient, and flexible JavaScript library for building user interfaces.
It allows developers to create reusable UI components.
React uses a virtual DOM for better performance by updating only the necessary parts of the actual DOM.
React follows a unidirectional data flow, making it easier to understand and debug.
React can be use...

A React Js Frontend Developer was asked 6mo ago

Q. Define let, var, and const.

Ans.

let, var, and const are used to declare variables in JavaScript with different scoping rules.

let: block-scoped variable, can be reassigned
var: function-scoped variable, can be reassigned
const: block-scoped variable, cannot be reassigned, but its properties can be modified

A React Js Frontend Developer was asked 6mo ago

Q. What is a closure in programming?

Ans.

Closure is the combination of a function bundled together with references to its surrounding state.

Closure allows a function to access variables from its outer scope even after the outer function has finished executing.
It is created whenever a function is defined within another function, and the inner function has access to the outer function's variables.
Closure helps in maintaining the state of a function and all...

A React Js Frontend Developer was asked 6mo ago

Q. Define Closure

Ans.

Closure is a function that has access to its own scope, as well as the scope in which it was defined.

A closure allows a function to access variables from an outer function even after the outer function has finished executing.
Closures are commonly used in event handlers, callbacks, and in functional programming.
Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { consol...

A React Js Frontend Developer was asked 6mo ago

Q. Tell me difference between Let, Var, Cost and

Ans.

Let, var, and const are used to declare variables in JavaScript, with differences in scope and mutability.

let: block-scoped, can be reassigned
var: function-scoped, can be reassigned
const: block-scoped, cannot be reassigned

Praeclarum Tech React Js Frontend Developer Interview Experiences

3 interviews found

React Js Frontend Developer Interview Questions & Answers

Gupta Love

posted on 16 Dec 2024

Interview experience

Excellent

Difficulty level

Moderate

Process Duration

Less than 2 weeks

Result

Selected

I applied via Referral and was interviewed in Nov 2024. There were 3 interview rounds.

Round 1 - Technical

(2 Questions)

Q1. Tell me difference between Let, Var, Cost and

Ans.

Let, var, and const are used to declare variables in JavaScript, with differences in scope and mutability.

let: block-scoped, can be reassigned
var: function-scoped, can be reassigned
const: block-scoped, cannot be reassigned

Answered by AI

Add your answer

Q2. What is closure

Ans.

Closure is the combination of a function bundled together with references to its surrounding state.

Closure allows a function to access variables from its outer scope even after the outer function has finished executing.
It is created whenever a function is defined within another function, and the inner function has access to the outer function's variables.
Closure helps in maintaining the state of a function and allows f...

Answered by AI

Add your answer

Round 2 - Technical

(2 Questions)

Q1. Define let var const

Ans.

let, var, and const are used to declare variables in JavaScript with different scoping rules.

let: block-scoped variable, can be reassigned
var: function-scoped variable, can be reassigned
const: block-scoped variable, cannot be reassigned, but its properties can be modified

Answered by AI

Add your answer

Q2. Define Closure

Ans.

Closure is a function that has access to its own scope, as well as the scope in which it was defined.

A closure allows a function to access variables from an outer function even after the outer function has finished executing.
Closures are commonly used in event handlers, callbacks, and in functional programming.
Example: function outerFunction() { let outerVar = 'I am outer'; return function innerFunction() { console.log...

Answered by AI

Add your answer

Round 3 - HR

(2 Questions)

Q1. What is your hobbies

Add your answer

Q2. What is your Strength

Add your answer

React Js Frontend Developer Interview Questions & Answers

Anonymous

posted on 10 Dec 2024

Interview experience

Bad

Difficulty level

Moderate

Process Duration

Less than 2 weeks

Result

Selected

I applied via Indeed and was interviewed in Nov 2024. There was 1 interview round.

Round 1 - Aptitude Test

Shoping card api integration

Interview Preparation Tips

Interview preparation tips for other job seekers - Please don't trust on hr work on telephone conversation she ready for discuss salary but she try to you come to office she only waste your time they don't have a value of time and money to give any employee

React Js Frontend Developer Interview Questions & Answers

Anonymous

posted on 16 Dec 2024

Interview experience

Excellent

Difficulty level

Easy

Process Duration

Less than 2 weeks

Result

Selected

I applied via LinkedIn and was interviewed before Dec 2023. There were 3 interview rounds.

Round 1 - Coding Test

First round is coding test.

Round 2 - Technical

(2 Questions)

Q1. What is react js?

Ans.

React JS is a JavaScript library for building user interfaces.

React JS is a declarative, efficient, and flexible JavaScript library for building user interfaces.
It allows developers to create reusable UI components.
React uses a virtual DOM for better performance by updating only the necessary parts of the actual DOM.
React follows a unidirectional data flow, making it easier to understand and debug.
React can be used to ...

Answered by AI

Add your answer

Q2. What is node js?

Ans.

Node.js is a JavaScript runtime built on Chrome's V8 JavaScript engine that allows developers to run JavaScript code outside of a web browser.

Node.js is used for building server-side applications.
It allows developers to use JavaScript for both client-side and server-side development.
Node.js has a large ecosystem of open-source libraries and frameworks, such as Express.js.
Node.js uses an event-driven, non-blocking I/O m...

Answered by AI

Add your answer

Round 3 - HR

(2 Questions)

Q1. What is your current salary?

Add your answer

Q2. What is your salary expectation?

Add your answer

Skills evaluated in this interview

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Interview Tips & Stories

toobluntforu

works at

Cvent

Can speak English, can’t deliver in interviews

I feel like I can't speak fluently during interviews. I do know english well and use it daily to communicate, but the moment I'm in an interview, I just get stuck. since it's not my first language, I struggle to express what I actually feel. I know the answer in my head, but I just can’t deliver it properly at that moment. Please guide me

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Interview questions from similar companies

Software Developer Interview Questions & Answers

TCS

Anonymous

posted on 29 Jun 2022

I applied via Company Website and was interviewed before Jun 2021. There were 2 interview rounds.

Round 1 - Aptitude Test

First round was coding as well as aptitude done together went well I guess focusing on codes helps a lot.

Round 2 - Technical

(1 Question)

Q1. 2nd round included tr and mr round went quite enegritic

Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Resume skills matters a lot don't fill resume the technologies you don't even aware of

Software Developer Interview Questions & Answers

TCS

Trisha Kundu

posted on 10 Oct 2020

I applied via Campus Placement and was interviewed in Apr 2020. There was 1 interview round.

Interview Questionnaire

2 Questions

Q1. Are you willing to relocate?

Ans.

Yes, I am open to relocating for the right opportunity that aligns with my career goals and personal growth.

Relocation can provide exposure to new technologies and methodologies.
I am excited about the prospect of working in diverse teams and cultures.
For example, moving to a tech hub like San Francisco could enhance my career.
I understand the challenges of relocating, but I see them as opportunities for growth.

Answered by AI

Add your answer

Q2. Why should I hire you?

Ans.

I bring a unique blend of skills, experience, and passion for software development that aligns perfectly with your team's goals.

Proven experience in developing scalable applications, such as a recent project where I improved performance by 30%.
Strong problem-solving skills demonstrated through my contributions to open-source projects, enhancing functionality and fixing bugs.
Excellent teamwork and communication abilitie...

Answered by AI

Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - My technical and Hr interview done at same place. It lasted about 40minutes. The interviewer test both my technical knowledge and communication skills. I tell most of the answer. They check patience level.He stressed on my final year project . Asking about range and specification of compotents which I heve used in my project. Finally ask some HR questions.

Software Developer Interview Questions & Answers

Accenture

Anonymous

posted on 27 Jul 2022

I applied via LinkedIn and was interviewed before Jul 2021. There were 2 interview rounds.

Round 1 - Aptitude Test

Easy logical questions
basic quant

Round 2 - Coding Test

Easy level coding questions
Counting frequency of alphabets

Interview Preparation Tips

Interview preparation tips for other job seekers - Just go through the basics of javascript
Hoisting

Software Developer Interview Questions & Answers

Capgemini

Siddhesh Hirulkar

posted on 10 Sep 2020

Interview Questionnaire

1 Question

Q1. How to use multiple dispatch in redux?

Ans.

Multiple dispatch is not a feature of Redux. It can be achieved using middleware or custom logic.

Middleware like redux-thunk or redux-saga can be used to dispatch multiple actions based on a single action.
Custom logic can be implemented in the reducer to handle multiple actions based on a single action type.
For example, a single 'ADD_ITEM' action can trigger multiple actions like 'UPDATE_TOTAL', 'UPDATE_HISTORY', etc.
M...

Answered by AI

Add your answer

Skills evaluated in this interview

Are these interview questions helpful?

Software Developer Interview Questions & Answers

TCS

Anonymous

posted on 11 Jun 2021

I applied via Campus Placement and was interviewed before Jun 2020. There were 3 interview rounds.

Interview Questionnaire

2 Questions

Q1. Simple program

Add your answer

Q2. I wrote a simple program in C

Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Be bold and confident

Software Developer Interview Questions & Answers

TCS

Anonymous

posted on 11 Oct 2020

I applied via Naukri.com and was interviewed before Oct 2019. There were 3 interview rounds.

Interview Questionnaire

1 Question

Q1. What technical challenges have you faced in your work till now and how did you overcome it?

Ans.

Faced various technical challenges, including system integration and performance optimization, which I successfully navigated through strategic solutions.

Integration of legacy systems with modern applications: I utilized APIs and middleware to ensure seamless data flow.
Performance bottlenecks in a web application: Implemented caching strategies and optimized database queries, resulting in a 40% speed increase.
Debugging...

Answered by AI

View 1 more answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Be truthful and give detailed explanation of the issues and how it was resolved. Explain the severity of the problem and what blockage it had caused in your daily work. How did you chose a solution and how fast was it implemented.

Software Developer Interview Questions & Answers

Accenture

Manmeet Sinha

posted on 11 Sep 2020

I applied via Walk-in and was interviewed before Sep 2019. There were 3 interview rounds.

Interview Questionnaire

1 Question

Q1. 1.Technical Ques(OOPS Concept)and 2. Area of Interest 3. About Company 4. more

Add your answer

Interview Preparation Tips

Interview preparation tips for other job seekers - Hello Folks,
Sharing some tips while facing Interview Assessment or GD Round Assessment.
1. Be Confident always give the answer what they ask for, Never connect your answer with different topic.
2. Always go through Company Portal or wiki about their Operation & Function.
3. Always have positive vibes that whatever yes or No, You will surely gain something.
All the Best..!!

Praeclarum Tech Interview FAQs

How many rounds are there in Praeclarum Tech React Js Frontend Developer interview?

Praeclarum Tech interview process usually has 2-3 rounds. The most common rounds in the Praeclarum Tech interview process are Technical, HR and Aptitude Test.

What are the top questions asked in Praeclarum Tech React Js Frontend Developer interview?

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