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OodlesTechnologies React Developer Interview Questions, Process, and Tips

Updated 21 Mar 2022

OodlesTechnologies React Developer Interview Experiences

1 interview found

I was interviewed in Nov 2021.

Round 1 - Video Call 

(4 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical round with questions on React mainly.

  • Q1. What are the differences between functional and class components in React?
  • Ans. 

    Functional components are simpler and easier to test, while class components have more features and lifecycle methods.

    • Functional components are written as JavaScript functions, while class components are written as ES6 classes.

    • Functional components are stateless and do not have their own internal state, while class components can have state.

    • Functional components do not have lifecycle methods, while class components hav...

  • Answered by AI
  • Q2. What are props in React?
  • Ans. 

    Props are read-only properties passed from a parent component to a child component in React.

    • Props allow data to be passed down the component tree.

    • Props are immutable and cannot be modified by the child component.

    • Props can be used to customize the behavior or appearance of a component.

    • Props are accessed using the dot notation, like this.props.propName.

    • Props can be any type of data, including strings, numbers, objects, o

  • Answered by AI
  • Q3. What is useState() in React?
  • Ans. 

    useState() is a React hook that allows functional components to manage state.

    • useState() is used to declare a state variable in a functional component.

    • It returns an array with two elements: the current state value and a function to update the state.

    • The initial state value is passed as an argument to useState().

    • The state can be updated by calling the update function returned by useState().

    • useState() can be used multiple ...

  • Answered by AI
  • Q4. What are custom hooks in React?
  • Ans. 

    Custom Hooks are reusable functions in React that allow you to extract logic from components.

    • Custom Hooks are functions that start with the word 'use' and can call other Hooks if needed.

    • They are used to share stateful logic between components without using higher-order components or render props.

    • Custom Hooks can be used to handle common tasks like fetching data, managing form state, or subscribing to events.

    • They promot...

  • Answered by AI
Round 2 - Video Call 

(3 Questions)

Round duration - 60 minutes
Round difficulty - Easy

Technical round with questions on Javascript mainly. Some output based questions on Javascript were also discussed.

  • Q1. Can you explain hoisting in JavaScript?
  • Ans. 

    Hoisting is a JavaScript behavior where variable and function declarations are moved to the top of their scope.

    • Variable declarations are hoisted but not their initializations.

    • Function declarations are fully hoisted.

    • Hoisting can lead to unexpected behavior if not understood properly.

  • Answered by AI
  • Q2. Does a const variable make the value immutable in JavaScript?
  • Ans. 

    No, const does not make the value immutable.

    • const only makes the variable itself immutable, not the value it holds.

    • For objects and arrays, const prevents reassignment but allows mutation of properties or elements.

    • To make a value truly immutable, you can use Object.freeze() or other techniques.

  • Answered by AI
  • Q3. What are the states of a promise object in JavaScript?
  • Ans. 

    The states of a promise object are pending, fulfilled, or rejected.

    • A promise starts in the pending state.

    • When a promise is resolved, it transitions to the fulfilled state.

    • If a promise encounters an error, it transitions to the rejected state.

    • Once a promise is settled (fulfilled or rejected), it cannot transition to any other state.

  • Answered by AI
Round 3 - HR 

Round duration - 30 minutes
Round difficulty - Easy

HR round with typical Behavioral problems.

Interview Preparation Tips

Eligibility criteriaAbove 7 CGPAOodles Technologies Pvt Ltd interview preparation:Topics to prepare for the interview - React, Javascript, HTML, CSS, Web Development, DSATime required to prepare for the interview - 6 monthsInterview preparation tips for other job seekers

Tip 1 : Watch all videos of Akshay Saini on youtube. [Namaste JavaScript]
Tip 2 : Practice some output questions from Namaste JavaScript.
Tip 3 : Basic knowledge of React from any source.

Application resume tips for other job seekers

Tip 1 : Have at-least 2 good projects explained in short with all important points covered.
Tip 2 : Every skill must be mentioned.
Tip 3 : Focus on skills, projects and experiences more.

Final outcome of the interviewSelected

Skills evaluated in this interview

Interview questions from similar companies

I applied via Company Website and was interviewed before Dec 2020. There were 4 interview rounds.

Interview Questionnaire 

1 Question

  • Q1. Questions on Java,SQL,some trending technologies(IOT,Big data),pattern questions, programming questions with different approaches.

Interview Preparation Tips

Interview preparation tips for other job seekers - Prepare basics of DSA, have knowledge about the databases, some common dml ,ddl statements, programming knowledge of a particular language like C,Java, python,etc...have good command on oops concepts... little bit of frameworks knowledge will also help

I applied via Newspaper Ad and was interviewed before Jun 2021. There were 3 interview rounds.

Round 1 - Aptitude Test 
Round 2 - Technical 

(1 Question)

  • Q1. Basic questions of java.
Round 3 - HR 

(1 Question)

  • Q1. Intro and other hr related questions.

Interview Preparation Tips

Interview preparation tips for other job seekers - Cover the basic questions regarding the programming language.

I applied via Referral and was interviewed before Apr 2021. There were 2 interview rounds.

Round 1 - Aptitude Test 

Puzzles, Psychometric Test

Round 2 - One-on-one 

(1 Question)

  • Q1. Some water in 3 Jars question, you had to measure out 5L correctly

Interview Preparation Tips

Interview preparation tips for other job seekers - Make the interview interactive, I got this input from another Senior. Before i went into the interview room the volunteers were telling all those who goes into Room No 1 is screwed. I was praying i don't get room no 1. But fortunately for me I got room no 1 because when the interviewer gave me the puzzle and handed over pen and paper he went back to relax his posture and when i explained i will fill the 5L Jar first, he immediately came forward to listen to me, at that moment i knew i got the job because i felt the previous candidates never made their interview interactive and that's why he went back to relax his posture.

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

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

I was interviewed in Sep 2016.

Interview Questionnaire 

3 Questions

  • Q1. Tell me about yourself
  • Ans. 

    I am a passionate software developer with experience in Java, Python, and web development.

    • Experienced in Java, Python, and web development technologies

    • Strong problem-solving skills and ability to work in a team

    • Completed multiple projects including a web-based inventory management system

  • Answered by AI
  • Q2. Simple coding questions..Basically pattern.
  • Q3. And also they will ask about your projects.

Interview Preparation Tips

Round: Test
Experience: 60 multiple choice questions so have to manage time carefully.
Tips: Have to give equal importance to all the sections..So try to do well in all section.
Duration: 1 hour 30 minutes
Total Questions: 60

Round: Technical + HR Interview
Experience: Don't panic...Only write those things that you know in your resume.

Skills: Smart Coding
College Name: Jaypee Institute Of Information Technology, Noida

I was interviewed in May 2017.

Interview Preparation Tips

Round: Test
Total Questions: 20

Round: Group Discussion
Duration: 1 hour

Skills: Coding Skills And Knowledge On Data Structures

I was interviewed in Jun 2017.

Interview Preparation Tips

Round: Test
Duration: 1 hour 30 minutes

Skills: Engineering Basics

I was interviewed in May 2017.

Interview Preparation Tips

Round: Group Discussion
Duration: 7 hours

College Name: Andhra university

I was interviewed in Aug 2017.

Interview Preparation Tips

Round: Test
Tips: Practice e litmus questions and also give mock tests on placement season
Duration: 2 hours

Round: Technical + HR Interview
Experience: The interviewer asked me questions from the subjects I mentioned in my CV and also asked so many situational questions like what will you do in this situation etc.

Skills: Presence Of Mind, Technical Skill

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