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Simform Reactjs Developer Interview Questions, Process, and Tips

Updated 4 Oct 2024

Simform Reactjs Developer Interview Experiences

1 interview found

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

I applied via Referral and was interviewed before Oct 2023. There were 3 interview rounds.

Round 1 - HR 

(2 Questions)

  • Q1. What is your expected CTC
  • Ans. 

    My expected CTC is based on my experience, skills, and the market rate for Reactjs Developers.

    • My expected CTC is in line with industry standards for Reactjs Developers.

    • I have considered my level of experience and expertise in Reactjs development.

    • I am open to negotiation based on the overall compensation package offered by the company.

  • Answered by AI
  • Q2. What version of React you use?
  • Ans. 

    I use the latest stable version of React for my projects.

    • I always make sure to update to the latest stable version to take advantage of new features and improvements.

    • For example, I am currently using React version 17.0.2 in my projects.

    • I also keep an eye on the React release notes to stay informed about any breaking changes or deprecations.

  • Answered by AI
Round 2 - Technical 

(2 Questions)

  • Q1. What is reconcilation in ReactJs
  • Ans. 

    Reconciliation in ReactJs is the process of updating the DOM to match the virtual DOM after a state change.

    • Reconciliation is the algorithm that React uses to update the UI efficiently.

    • It compares the virtual DOM with the previous virtual DOM and only updates the necessary components.

    • Reconciliation is a key feature that helps React achieve high performance.

    • Example: When a user clicks a button causing a state change, Rea...

  • Answered by AI
  • Q2. How does Virtual DOM work
  • Ans. 

    Virtual DOM is a lightweight copy of the actual DOM that React uses to efficiently update the UI.

    • Virtual DOM is a representation of the actual DOM in memory.

    • When state changes, React compares the Virtual DOM with the actual DOM to identify the differences.

    • React then updates only the necessary parts of the actual DOM, minimizing performance impact.

  • Answered by AI
Round 3 - Assignment 

Form builder basically similar to Google forms

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Naukri.com and was interviewed in Dec 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 

(4 Questions)

  • Q1. Some of important javascript questions
  • Q2. On react js like hooks, virtual dom,html5 and html,state, useMemo, useCallback,useEffect
  • Q3. Box model, css selector
  • Q4. What are fragments in react js
  • Ans. 

    Fragments in React.js are used to group multiple elements without adding an extra node to the DOM.

    • Fragments are a way to group multiple elements without using a wrapper element.

    • They help in avoiding unnecessary divs in the DOM.

    • Fragments can improve performance by reducing the number of DOM nodes.

    • They are useful when returning multiple elements from a component's render method.

    • Fragments can be written using the

  • Answered by AI

Interview Preparation Tips

Interview preparation tips for other job seekers - just prepare basic of front end technology like html,css,javascript,es6

Skills evaluated in this interview

Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
No response

I applied via LinkedIn and was interviewed in Oct 2024. There was 1 interview round.

Round 1 - Technical 

(3 Questions)

  • Q1. What are the advantages of React
  • Ans. 

    React offers advantages such as virtual DOM for improved performance, reusable components, and easy integration with other libraries.

    • Virtual DOM for efficient updates and improved performance

    • Reusable components for easier development and maintenance

    • Easy integration with other libraries like Redux for state management

    • Support for server-side rendering for better SEO performance

  • Answered by AI
  • Q2. How the performance optimization can be done in React Js Application
  • Ans. 

    Performance optimization in React Js can be achieved through code splitting, memoization, virtualization, and minimizing re-renders.

    • Implement code splitting to load only necessary components when needed

    • Use memoization techniques like useMemo and useCallback to prevent unnecessary re-renders

    • Implement virtualization for long lists or tables to render only visible items

    • Minimize re-renders by using shouldComponentUpdate or

  • Answered by AI
  • Q3. What is the purpose of useMemo and UseCallBack hook
  • Ans. 

    useMemo and useCallback are hooks in React used for optimizing performance by memoizing values and functions respectively.

    • useMemo is used to memoize the result of a function so that it is only recomputed when its dependencies change.

    • useCallback is used to memoize a function instance so that it is not recreated on every render unless its dependencies change.

    • Both hooks help in optimizing performance by preventing unneces...

  • Answered by AI

Skills evaluated in this interview

Reactjs Developer Interview Questions & Answers

TCS user image Samiksha Sajane

posted on 31 Jul 2024

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

(5 Questions)

  • Q1. Explain useSelector
  • Ans. 

    useSelector is a hook provided by React-Redux for accessing the Redux store state in functional components.

    • Allows functional components to access the Redux store state without connecting to the store

    • Accepts a selector function as an argument to specify which part of the state to extract

    • Automatically subscribes to the Redux store updates and re-renders the component when the selected state changes

  • Answered by AI
  • Q2. Optimization in react
  • Ans. 

    Optimization in React involves improving performance and efficiency of the application.

    • Use shouldComponentUpdate or PureComponent to prevent unnecessary re-renders

    • Avoid using inline functions in render method to prevent re-renders

    • Use keys in lists to help React identify which items have changed

    • Splitting components into smaller ones can improve performance

    • Use React.memo for functional components to memoize the result

  • Answered by AI
  • Q3. What is JSX in react
  • Ans. 

    JSX is a syntax extension for JavaScript used in React to write HTML-like code within JavaScript.

    • JSX allows developers to write HTML-like code directly in their JavaScript files

    • It makes the code more readable and easier to understand

    • JSX gets transpiled into regular JavaScript by tools like Babel before being rendered by the browser

  • Answered by AI
  • Q4. Explain redux flow in react
  • Ans. 

    Redux flow in React involves actions, reducers, store, and components to manage state in a centralized manner.

    • Actions are dispatched to describe what happened in the application.

    • Reducers specify how the state changes in response to actions.

    • Store holds the state of the application.

    • Components can connect to the store to access and update the state.

  • Answered by AI
  • Q5. Stateful and stateless components

Skills evaluated in this interview

Reactjs Developer Interview Questions & Answers

TCS user image Snehasis Chakraborty

posted on 7 Aug 2024

Interview experience
4
Good
Difficulty level
Easy
Process Duration
2-4 weeks
Result
Not Selected

I applied via Approached by Company and was interviewed in Jul 2024. There was 1 interview round.

Round 1 - One-on-one 

(3 Questions)

  • Q1. Brief about project
  • Ans. 

    Developed a web application for managing inventory and sales

    • Used Reactjs for front-end development

    • Implemented Redux for state management

    • Integrated with backend APIs using Axios

    • Designed responsive UI for better user experience

  • Answered by AI
  • Q2. Asked me about graph ql
  • Q3. Asked topic on routing .

Interview Preparation Tips

Interview preparation tips for other job seekers - please discuss the salary prior to giving interview .
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Difference between if else and ternary
  • Ans. 

    Ternary operator is a shorthand for if else statement in JavaScript.

    • Ternary operator is written as condition ? expression1 : expression2

    • If the condition is true, expression1 is executed, else expression2 is executed

    • Ternary operator is more concise and can be used inline in JSX

  • Answered by AI
  • Q2. Class and functional components
Round 2 - Behavioral 

(2 Questions)

  • Q1. About my projects
  • Q2. About strenghts and weeknesses
Round 3 - HR 

(2 Questions)

  • Q1. About my experience
  • Q2. Salary discussions
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - HR 

(1 Question)

  • Q1. Questions related to Current Job Profile and previous experience

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

Round 1 - Technical 

(6 Questions)

  • Q1. What is hoisting in JS
  • Ans. 

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

    • Hoisting applies to both variable and function declarations.

    • Variable declarations are hoisted but not their initializations.

    • Function declarations are fully hoisted, allowing them to be called before they are declared.

    • Hoisting does not apply to variables declared with let or const.

    • Hoisting can lead t...

  • Answered by AI
  • Q2. What are higher-order functions in JS
  • Ans. 

    Higher-order functions are functions that take one or more functions as arguments or return a function as their result.

    • Higher-order functions can be used to create reusable code by abstracting common patterns.

    • They enable functional programming paradigms like currying and composition.

    • Examples of higher-order functions in JavaScript include map, filter, and reduce.

  • Answered by AI
  • Q3. Difference between var, let, and const in JS
  • Ans. 

    var is function scoped, let and const are block scoped.

    • var can be redeclared and updated within its scope

    • let can be updated but not redeclared within its scope

    • const cannot be updated or redeclared once declared

    • let and const are not hoisted like var

    • const must be initialized during declaration

  • Answered by AI
  • Q4. What are Hooks in React.js
  • Ans. 

    Hooks are a feature in React.js that allow developers to use state and other React features in functional components.

    • Hooks are functions that let you use React features in functional components

    • They allow you to use state and other React features without writing a class

    • Hooks provide a way to reuse stateful logic between components

    • Some commonly used hooks are useState, useEffect, and useContext

  • Answered by AI
  • Q5. Presentation component vs functional component in React.js
  • Q6. Bind(), call(), apply() in JS

Interview Preparation Tips

Topics to prepare for Infosys Reactjs Developer interview:
  • JavaSctipt
  • React.Js
Interview preparation tips for other job seekers - the interview was based on basic concepts of JS.

Skills evaluated in this interview

Interview experience
1
Bad
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
No response

I applied via Recruitment Consulltant and was interviewed in Nov 2023. There were 3 interview rounds.

Round 1 - Coding Test 

Progress bar in react and remote data fetching

Round 2 - Technical 

(1 Question)

  • Q1. Ui related questions
Round 3 - HR 

(1 Question)

  • Q1. Asked for preferred location and salary
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
-

I applied via Company Website and was interviewed in Oct 2023. There were 3 interview rounds.

Round 1 - Technical 

(6 Questions)

  • Q1. What are the benefits of React?
  • Ans. 

    React offers a component-based architecture, virtual DOM for performance optimization, and a strong community support.

    • Component-based architecture allows for reusability and easier maintenance of code.

    • Virtual DOM helps in improving performance by only updating the necessary parts of the actual DOM.

    • React has a strong community support with a vast ecosystem of libraries and tools available.

    • React allows for server-side re...

  • Answered by AI
  • Q2. Difference between state and props?
  • Ans. 

    State is mutable and managed within the component, while props are immutable and passed from parent component.

    • State is managed within the component and can be changed using setState() method

    • Props are passed from parent component to child component and cannot be changed by the child component

    • State is used for internal component data management, while props are used for passing data from parent to child components

  • Answered by AI
  • Q3. What is useReducer and UseContext api?
  • Ans. 

    useReducer is a React hook that manages state changes through a specified reducer function. useContext is a hook that allows access to a context object.

    • useReducer is used for managing complex state logic in React applications.

    • It takes in a reducer function and an initial state, and returns the current state and a dispatch function.

    • Example: const [state, dispatch] = useReducer(reducer, initialState);

    • useContext is used f...

  • Answered by AI
  • Q4. What is one way data binding?
  • Ans. 

    One way data binding is a unidirectional flow of data from the model to the view in React applications.

    • Data flows from the model (or source of truth) to the view, but not vice versa.

    • Changes in the model automatically update the view, but changes in the view do not affect the model.

    • Helps in maintaining a clear and predictable data flow in React components.

  • Answered by AI
  • Q5. Tell me hooks you have used?
  • Ans. 

    I have used useState, useEffect, useContext, useReducer, and useRef hooks in my projects.

    • useState - for managing state in functional components

    • useEffect - for handling side effects in functional components

    • useContext - for accessing context in functional components

    • useReducer - for managing complex state logic in functional components

    • useRef - for accessing DOM elements or storing mutable values

  • Answered by AI
  • Q6. What is redux middleware
  • Ans. 

    Redux middleware is a function that intercepts actions before they reach the reducer.

    • Middleware can be used for logging, crash reporting, asynchronous API calls, etc.

    • It sits between the action dispatch and the reducer.

    • Examples of popular middleware include redux-thunk and redux-saga.

  • Answered by AI
Round 2 - Behavioral 

(2 Questions)

  • Q1. Questions related to Projects
  • Q2. Git commands: How to commit ,merge code, how to resolve merge conflicts
  • Ans. 

    Git commands for committing, merging code, and resolving merge conflicts

    • To commit code: git commit -m 'Commit message'

    • To merge code from a branch: git merge branch_name

    • To resolve merge conflicts: manually edit the conflicting files, add changes, and then commit the merge

  • Answered by AI
Round 3 - Coding Test 

It's 10 multiple-choice question with low,medium, and difficult range levels.

Skills evaluated in this interview

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Simform Interview FAQs

How many rounds are there in Simform Reactjs Developer interview?
Simform interview process usually has 3 rounds. The most common rounds in the Simform interview process are HR, Technical and Assignment.
What are the top questions asked in Simform Reactjs Developer interview?

Some of the top questions asked at the Simform Reactjs Developer interview -

  1. What version of React you u...read more
  2. What is reconcilation in Reac...read more
  3. What is your expected ...read more

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