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Essential Services Outsource Full Stack Web Developer Interview Questions and Answers
Essential Services Outsource Full Stack Web Developer Interview Experiences
1 interview found
Selected
I applied via Internshala and was interviewed before Apr 2022. There were 2 interview rounds.
(3 Questions)
- Q1. How to upload multiple files with AJAX
- Ans.
Multiple files can be uploaded using AJAX by sending a FormData object containing the files.
Create a FormData object
Append each file to the FormData object
Send the FormData object using AJAX
- Q2. What are promises in javascript
- Ans.
Promises are a way to handle asynchronous operations in JavaScript.
Promises represent a value that may not be available yet.
They can be in one of three states: pending, fulfilled, or rejected.
Promises can be chained together using .then() and .catch() methods.
They help avoid callback hell and make code more readable.
Example: fetch() returns a promise that resolves with the response object.
- Q3. Promises in javascript is a good way to handle asynchronous operations . With the help of promises we can check if the operation was successful or not .
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Full Stack Web Developer Interview Questions & Answers
Deloitte
lalitha tejaswini
posted on 25 Jul 2024
(1 Question)
- Q1. Difference between let, var and const.
- Ans.
let, var and const are all used for variable declaration in JavaScript, but they have different scopes and behaviors.
let has block scope, var has function scope, and const is a constant that cannot be reassigned.
let and const are hoisted but not initialized, while var is hoisted and initialized with undefined.
Using const for objects and arrays does not make them immutable, only the reference is constant.
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed before Feb 2023. There were 2 interview rounds.
There was 2 DSA coding questions and 2 SQL query questions. Level of questions were medium
(1 Question)
- Q1. Question were like basic knowledge of OOPS, basic coding questions, hr questions and puzzle questions were asked
Full Stack Developer Interview Questions & Answers
EXL Service
deepak aggarwal
posted on 26 Dec 2024
(1 Question)
- Q1. Ask questions related to CSS, Javascript, React, Node and Cloud stuff
Full Stack Developer Interview Questions & Answers
Virtusa Consulting Services
Anonymous
posted on 12 Jan 2025
On campus aptitude test
(1 Question)
- Q1. About oops concepts and java questions
(1 Question)
- Q1. Discussion about location and why virtusa
I applied via Naukri.com and was interviewed in Oct 2024. There were 2 interview rounds.
Quantitative , figure ,mcq question based on tech stack and 2 coding question which are basic. 90 minute time limit.
(2 Questions)
- Q1. Angular question
- Q2. .net question and sql question
(2 Questions)
- Q1. Hibernate internal working
- Q2. Group BY in DBMS
I was interviewed in Sep 2023.
(1 Question)
- Q1. Basic intro with work experience and skillset
(4 Questions)
- Q1. After a quick intro jumped into coding - it was an easy DSA question which unfortunately i wasn't able to solve in best time complexity. - find 2nd max element in an array (this was in JS language) you ca...
- Q2. Alot of questions on vanilla JS
- Q3. Asked if i know mongoDB as its a full stack dev role - which i didnt knew so i said not prepared as of now
- Q4. Asked React questions - higher order component, hooks, useeffect, prepare lifecycle methods thouroughly
Interview Preparation Tips
- React.Js
- Javascript
Full Stack Developer Interview Questions & Answers
Hexaware Technologies
Niranjan Potdar
posted on 15 Jul 2024
(2 Questions)
- Q1. Explain architecture of project
- Ans.
The project architecture follows a microservices design pattern with separate front-end and back-end components.
Utilizes microservices architecture for scalability and flexibility
Separate front-end and back-end components for modularity
May include technologies like Docker for containerization and Kubernetes for orchestration
- Q2. Async and await difference
- Ans.
Async and await are keywords in JavaScript used for handling asynchronous operations.
Async is used to define a function as asynchronous, allowing it to use the await keyword.
Await is used to pause the execution of an async function until a Promise is settled.
Async functions always return a Promise, which resolves with the value returned by the function.
Using async/await makes asynchronous code easier to read and write
(2 Questions)
- Q1. Background about me
- Q2. 2 DSA questions
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