Upload Button Icon Add office photos

Filter interviews by

Vanilla Networks Reactjs Developer Interview Questions and Answers

Updated 22 Dec 2024

Vanilla Networks Reactjs Developer Interview Experiences

4 interviews found

Interview experience
5
Excellent
Difficulty level
Hard
Process Duration
2-4 weeks
Result
No response

I applied via Naukri.com and was interviewed in Apr 2024. There were 3 interview rounds.

Round 1 - MCQ Online 

(1 Question)

  • Q1. Get your foundations right in React.
  • Ans. 

    Having strong foundations in React involves understanding key concepts like components, state, props, and lifecycle methods.

    • Understand the concept of components and how they work in React

    • Learn about state and props and how they are used to manage data and pass information between components

    • Familiarize yourself with React's lifecycle methods and how they allow you to perform actions at different stages of a component's

  • Answered by AI
Round 2 - One-on-one 

(1 Question)

  • Q1. Coding test, HR based and Aptitude.
Round 3 - Coding Test 

Basic questions asked

Interview Preparation Tips

Interview preparation tips for other job seekers - Get your basics right in JS, React.

Skills evaluated in this interview

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

A nearly two-hour online MCQ test that includes coding on a notepad, situational questions, English proficiency, and standard concept-based MCQs.

Reactjs Developer Interview Questions Asked at Other Companies

Q1. Implement counter such that it has 2 buttons to increment and dec ... read more
asked in Accenture
Q2. How do you make a page responsive. Bootstrap layouts and alerts
asked in Java R & D
Q3. What are Call, apply and bind methods, what is currying in JavaSc ... read more
Q4. what is ES6 feature small coding on how let,var,const works javas ... read more
asked in Metafic
Q5. Write code for functional component to call an API and show a lis ... read more
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
2-4 weeks
Result
Not Selected

I applied via Naukri.com and was interviewed in May 2023. There were 4 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 tips
Round 2 - Technical 

(2 Questions)

  • Q1. Initial technical question related to React JS.
  • Q2. Codes where given and i had to guess the outcome.
Round 3 - Coding Test 

The link was shared and there where a mix of questions, From all sorts of fields to make a profile about candidate.

Round 4 - One-on-one 

(1 Question)

  • Q1. One developer from the company asked a few question over the call.

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep the basics strong

Reactjs Developer Interview Questions & Answers

user image Shailesh Joshi

posted on 15 Jan 2024

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

I cleared coding test consist of 20 mcq related to ReactJs

Round 2 - Technical 

(1 Question)

  • Q1. After clearing the first round, I received an email stating,”We will contact you by phone to arrange an interview”, but they never called.

Vanilla Networks interview questions for designations

 PHP Developer

 (3)

 Javascript Developer

 (1)

 React Developer

 (1)

 DOT NET Developer

 (1)

 React Js Frontend Developer

 (2)

Interview questions from similar companies

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

I applied via Recruitment Consulltant and was interviewed in Sep 2024. There was 1 interview round.

Round 1 - Technical 

(16 Questions)

  • Q1. What is hosting and closer
  • Ans. 

    Hosting is the process of storing a website or application on a server, while closure is a function that retains access to variables from its parent scope.

    • Hosting involves storing a website or application on a server to make it accessible on the internet.

    • Closure is a function that retains access to variables from its parent scope, even after the parent function has finished executing.

  • Answered by AI
  • Q2. What is difference between var let and const give me an explanation on what block scope
  • Ans. 

    var, let, and const are used to declare variables in JavaScript. var has function scope, let has block scope, and const is a constant with block scope.

    • var has function scope, meaning it is accessible throughout the function it is declared in.

    • let has block scope, meaning it is only accessible within the block it is declared in.

    • const is similar to let in terms of block scope, but the value cannot be reassigned.

  • Answered by AI
  • Q3. What is asynchronous and how it works
  • Ans. 

    Asynchronous programming allows tasks to run independently of the main program flow, improving performance and responsiveness.

    • Asynchronous code does not block the main thread, allowing other tasks to continue while waiting for a response.

    • Callbacks, promises, and async/await are common ways to handle asynchronous operations in JavaScript.

    • Example: fetching data from an API while the rest of the application continues to r

  • Answered by AI
  • 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 then 5"; } console.log(b);
  • Ans. 

    The output for the given code snippets will be: 1) 20 2) ReferenceError: Cannot access 'b' before initialization 3) ReferenceError: b is not defined

    • In the first snippet, variable 'a' is declared using 'var' after it is assigned a value, so it logs 20 without any issues.

    • In the second snippet, variable 'b' is declared using 'let' after it is assigned a value, so it throws a ReferenceError as 'b' is accessed before initia...

  • Answered by AI
  • Q5. Give a div with text and display center of the page and apply animation using HTML and css
  • Ans. 

    Use HTML and CSS to center a div with text and apply animation

    • Create a div element with text inside

    • Apply CSS to center the div on the page using flexbox or margin auto

    • Use CSS animations like keyframes to add animation effects

  • Answered by AI
  • Q6. What are semantic tags and explain
  • Ans. 

    Semantic tags are HTML tags that provide meaning to the content they enclose, helping search engines and screen readers understand the structure of a webpage.

    • Semantic tags help improve SEO by providing context to search engines.

    • They also improve accessibility for screen readers by clearly defining the structure of a webpage.

    • Examples of semantic tags include

      ,
      ,

Answered by AI
  • Q7. How can we write responsive for web page
  • Ans. 

    Use media queries, flexible grids, and relative units to create a responsive web page.

    • Use media queries to apply different styles based on screen size

    • Create flexible grids using CSS Grid or Flexbox

    • Use relative units like percentages or ems for sizing elements

    • Consider using frameworks like Bootstrap or Material-UI for responsive design

    • Test your design on different devices and screen sizes

  • Answered by AI
  • Q8. What is the difference between CSS and SASS? what is the use of Sass
  • Ans. 

    SASS is a preprocessor scripting language that is interpreted into CSS, offering more features and flexibility.

    • SASS is a preprocessor for CSS, allowing for variables, nesting, and mixins to be used in stylesheets.

    • SASS code needs to be compiled into CSS before being used in a web project.

    • SASS helps in writing cleaner and more organized CSS code, making it easier to maintain and update styles.

    • CSS is the styling language ...

  • Answered by AI
  • Q9. Event propagation
  • Q10. How would you validate the form using HTML? How do you validate the phone number with the country code?
  • Ans. 

    Form validation using HTML and validating phone number with country code

    • Use HTML5 form validation attributes like 'required', 'pattern', 'minlength', etc.

    • For phone number validation, use 'pattern' attribute with regex for specific country code format

    • Example: <input type='tel' pattern='[0-9]{3}-[0-9]{3}-[0-9]{4}' required>

  • Answered by AI
  • Q11. Which test library you use why it usecase
  • Ans. 

    I use Jest for testing React applications due to its simplicity and integration with React ecosystem.

    • Jest is the most popular test library for React applications

    • It comes pre-configured with Create React App and has great support for snapshot testing

    • Jest also has built-in mocking capabilities which make it easy to test components with dependencies

  • Answered by AI
  • Q12. Tell me mounting and shallow concept in testing library
  • Ans. 

    Mounting is the process of rendering a component into the DOM, while shallow rendering allows testing a component without rendering its children.

    • Mounting is the initial phase of the component lifecycle where the component is rendered into the DOM.

    • Shallow rendering in testing library renders only the component itself, not its children.

    • Shallow rendering is useful for isolating the component being tested and avoiding rend...

  • Answered by AI
  • Q13. What is redux-toolkit and what difference b/w redux and redux-toolkit
  • Ans. 

    Redux Toolkit is the official, recommended way to write Redux logic. It simplifies the process of managing state in React applications.

    • Redux Toolkit provides a set of tools and best practices to streamline Redux development.

    • It includes utilities like createSlice, createReducer, and configureStore to simplify the code and reduce boilerplate.

    • Redux Toolkit also includes built-in Immer integration for writing immutable upd...

  • Answered by AI
  • Q14. How api call handle in redux and how can you get and display user name from redux
  • Ans. 

    API calls in Redux are typically handled using middleware like Redux Thunk. User name can be retrieved from Redux state and displayed in components.

    • Use Redux Thunk middleware to make API calls in Redux

    • Dispatch actions to update Redux state with API response data

    • Access user name from Redux state in components to display it

  • Answered by AI
  • Q15. React hooks and how optimization
  • Q16. Why we need thank in redux
  • Ans. 

    Thunk middleware in Redux allows for asynchronous logic to be handled in Redux actions.

    • Thunk middleware allows for dispatching functions instead of just plain objects in Redux actions.

    • It enables handling asynchronous API calls within Redux actions.

    • Thunk middleware helps in simplifying the code by moving complex logic outside of components.

    • Example: Thunk middleware can be used to dispatch an action after a delay or to f...

  • Answered by AI

    Skills evaluated in this interview

    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 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
    4
    Good
    Difficulty level
    Moderate
    Process Duration
    -
    Result
    Not Selected

    I applied via Company Website and was interviewed in Aug 2023. There was 1 interview round.

    Round 1 - Technical 

    (2 Questions)

    • Q1. What is conditional rendering in React? What are closures? OOPS concept in JavaScript. What is ACID in database? Stack vs Heap
    • Ans. 

      Conditional rendering in React allows components to render different elements or components based on certain conditions.

      • Conditional rendering is achieved using JavaScript expressions inside JSX.

      • Common conditional rendering techniques include using if statements, ternary operators, and logical && operator.

      • Example: rendering a component only if a certain condition is met - {condition ? : null}

    • Answered by AI
    • Q2. In react you can conditionally render component like when and which component to render by using if condition and other.

    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

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

    (1 Question)

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

    Vanilla Networks Interview FAQs

    How many rounds are there in Vanilla Networks Reactjs Developer interview?
    Vanilla Networks interview process usually has 2-3 rounds. The most common rounds in the Vanilla Networks interview process are Coding Test, Technical and One-on-one Round.
    What are the top questions asked in Vanilla Networks Reactjs Developer interview?

    Some of the top questions asked at the Vanilla Networks Reactjs Developer interview -

    1. Get your foundations right in Rea...read more
    2. One developer from the company asked a few question over the ca...read more
    3. Codes where given and i had to guess the outco...read more

    Tell us how to improve this page.

    Vanilla Networks Reactjs Developer Interview Process

    based on 5 interviews

    Interview experience

    3.8
      
    Good
    View more

    Interview Questions from Similar Companies

    TCS Interview Questions
    3.7
     • 10.4k Interviews
    Infosys Interview Questions
    3.6
     • 7.5k Interviews
    Wipro Interview Questions
    3.7
     • 5.6k Interviews
    Tech Mahindra Interview Questions
    3.5
     • 3.8k Interviews
    HCLTech Interview Questions
    3.5
     • 3.8k Interviews
    LTIMindtree Interview Questions
    3.8
     • 2.9k Interviews
    Mphasis Interview Questions
    3.4
     • 791 Interviews
    HCL Infosystems Interview Questions
    3.9
     • 140 Interviews
    View all
    Software Engineer
    14 salaries
    unlock blur

    ₹0 L/yr - ₹0 L/yr

    Senior Software Engineer
    8 salaries
    unlock blur

    ₹0 L/yr - ₹0 L/yr

    Web Developer
    6 salaries
    unlock blur

    ₹0 L/yr - ₹0 L/yr

    Software Developer
    5 salaries
    unlock blur

    ₹0 L/yr - ₹0 L/yr

    Lead Software Engineer
    5 salaries
    unlock blur

    ₹0 L/yr - ₹0 L/yr

    Explore more salaries
    Compare Vanilla Networks with

    TCS

    3.7
    Compare

    Wipro

    3.7
    Compare

    Infosys

    3.6
    Compare

    HCLTech

    3.5
    Compare
    Did you find this page helpful?
    Yes No
    write
    Share an Interview