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iEnergizer Front end Developer Interview Questions and Answers
iEnergizer Front end Developer Interview Experiences
1 interview found
I applied via Naukri.com and was interviewed in Dec 2024. There were 3 interview rounds.
Coding test was the first round of interview
(1 Question)
- Q1. What is virtual dom in react and what makes it faster ?
- Ans.
Virtual DOM is a lightweight copy of the actual DOM in React, allowing for efficient updates and rendering.
Virtual DOM is a representation of the actual DOM in memory.
React compares the virtual DOM with the actual DOM to identify changes.
Only the differences between the virtual and actual DOM are updated, making it faster.
Example: When a user interacts with a React component, the virtual DOM is updated first before the...
(1 Question)
- Q1. It was HR round
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I applied via Naukri.com and was interviewed in Mar 2024. There was 1 interview round.
(3 Questions)
- Q1. What is reactjs?
- Ans.
ReactJS is a JavaScript library for building user interfaces.
ReactJS is developed and maintained by Facebook.
It allows developers to create reusable UI components.
ReactJS uses a virtual DOM for better performance.
It follows a component-based architecture.
ReactJS can be used to build single-page applications.
- Q2. What is call, apply and bind in javascript?
- Ans.
call, apply, and bind are methods in JavaScript used to manipulate the context of a function.
call() is used to invoke a function with a specified 'this' value and arguments provided individually.
apply() is similar to call() but arguments are passed as an array.
bind() is used to create a new function with a specified 'this' value and initial arguments.
- Q3. Data Types in javascript
- Ans.
JavaScript has several data types including string, number, boolean, object, array, null, and undefined.
String: 'hello'
Number: 42
Boolean: true or false
Object: { key: value }
Array: [1, 2, 3]
Null: null
Undefined: undefined
Interview Preparation Tips
Skills evaluated in this interview
Front end Developer Interview Questions & Answers
Concentrix Corporation
Anonymous
posted on 29 Nov 2024
2 DSA questions. Both medium level difficult
I applied via Recruitment Consultant and was interviewed before Oct 2020. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Oops concept and MSSQL
Interview Preparation Tips
I applied via Campus Placement and was interviewed in Feb 2021. There was 1 interview round.
Interview Questionnaire
1 Question
- Q1. Company details
Interview Preparation Tips
Interview Questionnaire
3 Questions
- Q1. How publicity use
- Ans.
Publicity is used to promote and create awareness about a product, service, or brand.
Publicity is a marketing strategy that involves gaining media attention and coverage.
It helps in creating a positive image and reputation for the company or product.
Publicity can be achieved through press releases, media interviews, social media campaigns, and events.
It aims to reach a wide audience and generate interest and curiosity.
...
- Q2. What is meaning of ongc
- Ans.
ONGC stands for Oil and Natural Gas Corporation, a multinational oil and gas company based in India.
ONGC is a state-owned company founded in 1956
It is responsible for exploration, production, and refining of oil and gas
ONGC has operations in over 17 countries including India, Russia, and Vietnam
- Q3. Why always software
- Ans.
Software offers creativity, problem-solving, and a chance to impact the world through technology and innovation.
Diverse Opportunities: Software development spans various industries, from healthcare to finance, allowing for career flexibility.
Creative Problem Solving: Developers often face unique challenges, fostering innovation and creativity in their work.
High Demand: The tech industry continues to grow, leading to a ...
Software Developer Interview Questions & Answers
Firstsource Solutions
Anonymous
posted on 23 Aug 2021
I applied via Naukri.com and was interviewed in Jul 2021. There were 3 interview rounds.
Interview Questionnaire
1 Question
- Q1. Regarding project
Interview Preparation Tips
Software Developer Interview Questions & Answers
Statestreet HCL Services
Anonymous
posted on 31 May 2024
I applied via LinkedIn and was interviewed in Dec 2023. There were 2 interview rounds.
It was easy and u can do it very easily
Basically question were asked from tree, bst, greedy
Interview Preparation Tips
I appeared for an interview in May 2022.
Coding interviews test candidates' technical knowledge, coding ability, problem solving skills, and creativity, typically on a whiteboard.
A detail assignment is the temporary placement of a career employee in another established position that is vacant or from which the incumbent is absent.
An aptitude test is a way for employers to assess a candidate's abilities through a variety of different testing formats. Aptitude tests will test your ability to perform tasks and react to situations at work. This includes problem-solving, prioritisation and numerical skills, amongst other things.
(3 Questions)
- Q1. Consider the tools and skills necessary for the role. Think about the basic requirements of the job. ...
- Q2. Study helpful books and digital publications. .
- Ans. For books about studying productively, I think you'd be hard-pressed to find better than Eat That Frog – For Students by Brian Tracy and Anna Leinberger, The Productivity Project and Hyperfocus by Chris Bailey, The Procrastination Equation by Dr Piers Steel and Deep Work by Cal Newport.
- Q3. Take the time you need
- Ans. Said to mean that you can spend as much time as you need in doing something, or that you should slow down
Interview Preparation Tips
1) Be punctual at your interview. It is mandatory to be on time at a job interview. ...
2) Do your research on the company. ...
3) Don't forget about nonverbal communication. ...
4) Be polite with everyone. ...
5) Be prepared for your interview.
Gajendrula Deepika
I applied via Company Website and was interviewed in Oct 2021. There were 3 interview rounds.
Interview Questionnaire
3 Questions
- Q1. About c and c++ excel, ms world
- Q2. Programs, programs of company, marks, any thing
- Q3. In ms world we can do any thing
Interview Preparation Tips
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iEnergizer Front end Developer Reviews and Ratings
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