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Eupheus Web Developer Interview Questions and Answers
7 Interview questions
The difference between == and === is that == compares values while === compares both values and types.
The == operator performs type coercion before comparing values.
The === operator does not perform type coercion and compares both values and types.
Using === is generally considered safer and more reliable.
Example: 5 == '5' returns true, but 5 === '5' returns false.
I rate myself 8/10 in Javascript and 7/10 in jQuery.
Proficient in using vanilla Javascript to create dynamic and interactive web pages
Experience in using jQuery to simplify DOM manipulation and event handling
Familiarity with popular Javascript frameworks like React and Angular
Continuously learning and improving my skills in Javascript and jQuery
let, var, and const are JavaScript keywords used for declaring variables with different scopes and mutability.
var is function-scoped and can be redeclared and reassigned
let is block-scoped and can be reassigned but not redeclared
const is block-scoped and cannot be reassigned or redeclared
Use const for values that won't change, let for values that will, and var for legacy code or global variables
The $ sign in JQuery is a shorthand for the JQuery function.
The $ sign is used to select elements in JQuery.
It can also be used to create new elements.
It is a shorthand for the JQuery function.
Example: $('p') selects all the paragraphs on a page.
Callback hell is a situation where multiple nested callbacks make the code difficult to read and maintain.
It occurs when callbacks are nested within other callbacks.
It can lead to code that is difficult to read and maintain.
It can be avoided by using promises or async/await.
Example: fs.readFile('file.txt', function(err, data) { fs.writeFile('file2.txt', data, function(err) { console.log('File written!'); }); });
Async, await, and promises are JavaScript features used for handling asynchronous operations.
Promises are objects that represent the eventual completion or failure of an asynchronous operation.
Async/await is a syntax for writing asynchronous code that looks like synchronous code.
Async functions always return a promise.
Await can only be used inside an async function and it waits for the promise to resolve or reject...
Hoisting is a JavaScript mechanism where variables and function declarations are moved to the top of their scope.
Variables declared with var are hoisted to the top of their scope
Function declarations are also hoisted to the top of their scope
Function expressions are not hoisted
Hoisting can lead to unexpected behavior and bugs
Example: console.log(x); var x = 5; // Output: undefined
Eupheus Web Developer Interview Experiences
1 interview found
Mohit Thapliyal
I applied via Internshala and was interviewed in Jun 2022. There were 3 interview rounds.
(7 Questions)
- Q1. What is hoisting in javascript
- Ans.
Hoisting is a JavaScript mechanism where variables and function declarations are moved to the top of their scope.
Variables declared with var are hoisted to the top of their scope
Function declarations are also hoisted to the top of their scope
Function expressions are not hoisted
Hoisting can lead to unexpected behavior and bugs
Example: console.log(x); var x = 5; // Output: undefined
- Q2. Explain callback hell
- Ans.
Callback hell is a situation where multiple nested callbacks make the code difficult to read and maintain.
It occurs when callbacks are nested within other callbacks.
It can lead to code that is difficult to read and maintain.
It can be avoided by using promises or async/await.
Example: fs.readFile('file.txt', function(err, data) { fs.writeFile('file2.txt', data, function(err) { console.log('File written!'); }); });
- Q3. Difference between let, var, and const keyword
- Ans.
let, var, and const are JavaScript keywords used for declaring variables with different scopes and mutability.
var is function-scoped and can be redeclared and reassigned
let is block-scoped and can be reassigned but not redeclared
const is block-scoped and cannot be reassigned or redeclared
Use const for values that won't change, let for values that will, and var for legacy code or global variables
- Q4. Difference between == and ===
- Ans.
The difference between == and === is that == compares values while === compares both values and types.
The == operator performs type coercion before comparing values.
The === operator does not perform type coercion and compares both values and types.
Using === is generally considered safer and more reliable.
Example: 5 == '5' returns true, but 5 === '5' returns false.
- Q5. Explain async, await, and promises
- Ans.
Async, await, and promises are JavaScript features used for handling asynchronous operations.
Promises are objects that represent the eventual completion or failure of an asynchronous operation.
Async/await is a syntax for writing asynchronous code that looks like synchronous code.
Async functions always return a promise.
Await can only be used inside an async function and it waits for the promise to resolve or reject befo...
- Q6. Explain the use of the $ sign in JQuery
- Ans.
The $ sign in JQuery is a shorthand for the JQuery function.
The $ sign is used to select elements in JQuery.
It can also be used to create new elements.
It is a shorthand for the JQuery function.
Example: $('p') selects all the paragraphs on a page.
- Q7. Rate yourself in Javascript and JQurey
- Ans.
I rate myself 8/10 in Javascript and 7/10 in jQuery.
Proficient in using vanilla Javascript to create dynamic and interactive web pages
Experience in using jQuery to simplify DOM manipulation and event handling
Familiarity with popular Javascript frameworks like React and Angular
Continuously learning and improving my skills in Javascript and jQuery
(2 Questions)
- Q1. Can you travel to the office location
- Q2. Are you good with the timings
Interview Preparation Tips
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Treebo Hotels
Divyansh Gothwal
posted on 27 Jan 2017
I appeared for an interview in Dec 2016.
Interview Questionnaire
1 Question
- Q1. Tell me about yourself tell me about your internship My interview was unstructured(i.e based on your reply interviewer was asking Questions)
Interview Preparation Tips
Experience: Questions were very difficult and solving one Question gets you shortlisted for interview
I don't remember the Questions
Duration: 1 hour 30 minutes
Total Questions: 2
Skills: Internship Work, Inter Person Communication Skills
College Name: IIT Roorkee
Selected
I applied via Campus Placement and was interviewed before Aug 2023. There was 1 interview round.
General mathematics, english and coding
Software Developer Interview Questions & Answers
OneBanc Technologies
Anonymous
posted on 12 May 2025
Selected
I appeared for an interview in Apr 2025, where I was asked the following questions.
- Q1. What projects have you worked on, and what was your role?
- Q2. How do you approach debugging when your code isn't working?
- Ans.
Debugging involves systematically identifying and resolving issues in code to ensure it functions as intended.
Reproduce the Issue: Start by replicating the problem consistently to understand its context. For example, if a function returns an unexpected value, run it with the same inputs to see the output.
Check Error Messages: Pay attention to any error messages or logs. They often provide clues about what went wrong, s...
- Q3. Why should we hire you?
- Ans.
I bring a unique blend of technical skills, problem-solving abilities, and a passion for software development that aligns with your needs.
Strong Technical Skills: I have extensive experience in Java, Spring Boot, and RESTful APIs, demonstrated by my successful project where I built a microservices architecture for an e-commerce platform.
Problem-Solving Abilities: I excel at troubleshooting and optimizing code, as shown...
Interview Preparation Tips
Software Developer Interview Questions & Answers
OneBanc Technologies
Pooja Bansal
posted on 14 Aug 2024
I appeared for an interview in Jul 2024.
(2 Questions)
- Q1. Logical Task based on backend and analytics
- Q2. Make a website clone
- Ans.
To clone a website, you need to replicate its design, functionality, and content.
Study the website's design and layout
Identify the technologies used for development
Replicate the functionality and features
Ensure the content is accurate and up-to-date
Interview Preparation Tips
Skills evaluated in this interview
(2 Questions)
- Q1. Introduce yourself
- Ans.
I am a dedicated and experienced professional with a background in marketing and a passion for driving results.
Experienced in marketing strategies and campaigns
Strong track record of achieving goals and targets
Passionate about driving results and exceeding expectations
- Q2. Strengths and weaknesses
sarthak pant
I applied via Campus Placement
Its was data structure and algorithm and SQL round 4 question of dsa and 2 question of sql
(1 Question)
- Q1. How does OTP less work make a systematic diagram for it/
- Ans.
OTP less work eliminates the need for one-time passwords for authentication.
OTP less work uses alternative methods like biometrics, push notifications, or hardware tokens for authentication.
It provides a more seamless and user-friendly authentication experience.
Examples include fingerprint scanning on smartphones or security keys for two-factor authentication.
(1 Question)
- Q1. Everything related to yourself.
Selected
I applied via Campus Placement and was interviewed before Oct 2022. There were 3 interview rounds.
3 Coding question medium level
(1 Question)
- Q1. Asked 3 coding queston and some basis CS questions
Interview Preparation Tips
Anand Kumar
Interview Questionnaire
1 Question
- Q1. What certifications should a software developer have?
- Ans.
Certifications are not mandatory for software developers, but can add value to their resume.
Certifications in programming languages like Java, Python, C++
Certifications in software development methodologies like Agile, Scrum
Certifications in cloud computing platforms like AWS, Azure
Certifications in security like CISSP, CEH
Certifications in project management like PMP
Certifications in mobile app development like Androi...
I applied via Campus Placement and was interviewed in Jul 2021. There was 1 interview round.
Interview Questionnaire
2 Questions
- Q1. What is the polymorphism?
- Ans.
Polymorphism is the ability of an object to take on many forms.
Polymorphism allows objects to be treated as if they are of multiple types.
It enables code to be written that can work with objects of different classes in a uniform way.
Polymorphism can be achieved through method overloading or method overriding.
Example: A shape class can have multiple subclasses like circle, square, triangle, etc. and all can be treated a...
- Q2. What is inheritance?
- Ans.
Inheritance is a mechanism in object-oriented programming where a new class is created by inheriting properties of an existing class.
Inheritance allows for code reuse and promotes code organization.
The existing class is called the parent or superclass, and the new class is called the child or subclass.
The child class inherits all the properties and methods of the parent class, and can also add new properties and method...
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