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VR3 Business Services Web Developer Trainee Interview Questions, Process, and Tips for Experienced
VR3 Business Services Web Developer Trainee Interview Experiences for Experienced
1 interview found
Anonymous
I applied via Referral and was interviewed in Oct 2021. There were 9 interview rounds.
Interview Questionnaire
5 Questions
- Q1. What is Wordpress?
- Ans.
Wordpress is a popular content management system (CMS) used for creating websites and blogs.
Open-source software written in PHP
Easy to use and customizable
Offers a wide range of plugins and themes
Used by millions of websites worldwide
Examples: TechCrunch, The New Yorker, BBC America
- Q2. What do you mean by Blog?
- Q3. What is Wordpress refer to?
- Ans.
Wordpress is a free and open-source content management system (CMS) used to create websites and blogs.
Wordpress is a CMS used to create websites and blogs
It is free and open-source software
It has a large community of developers and users
It offers a wide range of themes and plugins for customization
It is written in PHP and uses a MySQL database
- Q4. What do you mean by localhost in WordPress?
- Ans.
Localhost in WordPress refers to the local server environment used for development and testing.
Local server environment used for testing and development
Can be accessed through the URL http://localhost/wordpress
Allows developers to test changes before deploying to live site
- Q5. What do you mean by WordPress Theme?
- Ans.
A WordPress Theme is a collection of files that determine the look and feel of a WordPress website.
Themes control the design and layout of a WordPress website
They include templates, stylesheets, and other files
Themes can be customized or created from scratch
Examples of popular themes include Divi, Avada, and Astra
Interview Preparation Tips
Skills evaluated in this interview
Interview questions from similar companies
I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.
(14 Questions)
- Q1. Let var const in JavaScript
- Ans.
var and const are used to declare variables in JavaScript, with var being mutable and const being immutable.
var is used to declare variables that can be reassigned and updated
const is used to declare variables that cannot be reassigned or updated
let is another keyword used for declaring variables, similar to var but with block scope
- Q2. Error boundary and how to handle
- Ans.
Error boundary is a React component that catches JavaScript errors anywhere in a component tree and logs those errors.
Error boundaries are React components that catch JavaScript errors in their child component tree.
They are used to prevent the entire UI from crashing due to a single error.
Error boundaries work like a JavaScript catch {} block, but for components.
They are defined using componentDidCatch lifecycle method
- Q3. Event.bind and event.property
- Q4. Use of never in typescript
- Ans.
The 'never' type in TypeScript represents a value that will never occur.
Used to indicate that a function will not return a value
Commonly used in union types to exclude certain values
Helps catch potential errors at compile time
- Q5. What hooks you have used
- Ans.
I have used React hooks such as useState, useEffect, useContext, and useRef in my projects.
useState
useEffect
useContext
useRef
- Q6. What is difference between use reducer and use state
- Ans.
useReducer is preferred for managing complex state logic, while useState is simpler for basic state management.
useReducer is more suitable for managing complex state logic and multiple state values
useState is simpler and more straightforward for basic state management with a single value
useReducer allows for more organized and centralized state updates through actions and reducers
useState is commonly used for simple co
- Q7. Why we use state and props
- Q8. How you will pass data from parent to child
- Ans.
Data can be passed from parent to child components in React using props.
Pass data as props from parent component to child component
Use state management libraries like Redux or Context API for complex data sharing
Use callback functions to pass data from child to parent components
- Q9. Write your own custom hook
- Ans.
Custom hook to fetch data from an API
Create a function that uses the useState and useEffect hooks
Use the fetch API to make a request to the desired endpoint
Return the fetched data and loading state in an array
- Q10. Explain map filter and reduce functions
- Ans.
Map, filter, and reduce are higher-order functions in JavaScript used to manipulate arrays.
Map: Transforms each element in an array and returns a new array with the transformed elements.
Example: [1, 2, 3].map(num => num * 2) returns [2, 4, 6].
Filter: Returns a new array with elements that pass a certain condition.
Example: [1, 2, 3].filter(num => num > 1) returns [2, 3].
Reduce: Applies a function against an accumulator ...
- Q11. How you can clone an object
- Ans.
To clone an object in JavaScript, you can use the spread operator or Object.assign() method.
Use the spread operator to create a shallow copy of an object: const clonedObj = { ...originalObj };
Use Object.assign() method to create a shallow copy of an object: const clonedObj = Object.assign({}, originalObj);
For deep cloning, you can use libraries like Lodash or write a custom function to recursively clone nested objects.
- Q12. What are the three stages of event propagation and how to handle it
- Ans.
Event propagation consists of three stages: capturing, target, and bubbling.
Capturing phase: Events are captured from the outermost element to the target element.
Target phase: Event reaches the target element where the event originated.
Bubbling phase: Events bubble up from the target element to the outermost element.
- Q13. How to handle errors in your react application
- Ans.
Errors in a React application can be handled by using error boundaries, try-catch blocks, and displaying error messages to users.
Use error boundaries to catch errors in components and display a fallback UI
Wrap code that may throw errors in try-catch blocks to handle exceptions
Use libraries like React Error Boundary to easily implement error handling
Display error messages to users to inform them about the issue and poss
- Q14. Write code to call fake api and display the title where category is “some category “
Skills evaluated in this interview
I applied via Naukri.com
(4 Questions)
- Q1. Javascipt question
- Q2. Promises, filter, map, What is single page , mulitple page application, opened google page by search for one product in that using console filter it only for sony products only
- Q3. What is DOM, what is the use of that
- Ans.
DOM stands for Document Object Model, it is a programming interface for web documents. It represents the structure of a document as a tree of objects.
DOM is used to interact with HTML and XML documents in a structured way
It allows developers to manipulate the content, structure, and style of a website dynamically
DOM provides methods and properties to access and modify elements on a web page
Example: document.getElementB...
- Q4. What is the output if u type document in console
- Ans.
The output will display the document object in the console.
Typing 'document' in the console will return the document object, which represents the current HTML document.
The document object provides access to the content and structure of the webpage, allowing manipulation of elements and properties.
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.
(3 Questions)
- Q1. What is AOT And JIT How angular different from react Route guard
- Ans.
AOT (Ahead-of-Time) and JIT (Just-in-Time) are compilation techniques used in Angular. Angular and React differ in their architecture and data binding approach. Route guards in Angular are used to control access to routes.
AOT compilation in Angular converts TypeScript code into efficient JavaScript code during the build process, resulting in faster rendering and smaller bundle sizes.
JIT compilation in Angular compiles ...
- Q2. How angular application build
- Ans.
Angular applications are built using the Angular CLI, which provides a command-line interface for creating, building, and serving Angular projects.
Angular applications are built using the Angular CLI (Command Line Interface)
The Angular CLI provides commands for creating new projects, generating components, services, modules, etc.
To build an Angular application, you can use the 'ng build' command which compiles the appl
- Q3. Project discussion
Interview Preparation Tips
Skills evaluated in this interview
Selected
I applied via Naukri.com and was interviewed in Apr 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Angular lifecycle hooks
- Q2. JS interview questions
Recurrsion tree implementation with angular
Interview Preparation Tips
Selected
I applied via Naukri.com and was interviewed before Nov 2023. There were 3 interview rounds.
Excellent and test related which we worked technology only
(2 Questions)
- Q1. What is different between react and angular?
- Ans.
React is a JavaScript library for building user interfaces, while Angular is a full-fledged framework for web development.
React is a library, while Angular is a framework.
React uses a virtual DOM for better performance, while Angular uses a regular DOM.
React is more flexible and allows developers to choose their own tools and libraries, while Angular has a more opinionated structure.
React is mainly focused on the view ...
- Q2. What is props drilling and higher order component in react. ?
- Ans.
Props drilling is passing props through multiple levels of components. Higher order component is a function that takes a component and returns a new component.
Props drilling involves passing props from a parent component to a deeply nested child component, which can lead to prop pollution and make the code harder to maintain.
Higher order component is a pattern where a function takes a component and returns a new compon...
(2 Questions)
- Q1. Previous projects domain
- Q2. What is role of previous company and some questions related to previous projects
Interview Preparation Tips
Skills evaluated in this interview
Given time aptitude must be cleared
2 codings for 1 hour
Selected
I applied via Naukri.com and was interviewed in Jun 2023. There were 2 interview rounds.
(2 Questions)
- Q1. Pc and mobile related
- Q2. Asking Youtube content related
(1 Question)
- Q1. Youtube regarding ,html ,css java
Interview Preparation Tips
- Youtube
- HTML
- CSS
- Java
Html,css,javascript,reactjs,php,laravel.bootstrap
(2 Questions)
- Q1. Why we use reactjs? and javascript
- Ans.
ReactJS is used for building interactive user interfaces, while JavaScript is the programming language that powers web development.
ReactJS allows for component-based architecture, making it easier to manage and update UI elements.
ReactJS uses a virtual DOM for efficient rendering, improving performance.
JavaScript is the language used to add interactivity and dynamic behavior to web pages.
JavaScript is essential for cli...
- Q2. This is use fro single page web aplication or real time.
Skills evaluated in this interview
Easy round, need to code few programs.
(5 Questions)
- Q1. Easy, Basic questions was asked.
- Q2. Tell us about yourself
- Q3. What kind of projects previously worked?
- Q4. Why looking for job change.
- Q5. What's your current salary.
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