Reveation Labs Frontend Developer Intern Interview Questions and Answers

2 questions, Easy and medium based

Q1. Stacks queues and array questions
Add your answer

Q1. Technical questions on projects
Add your answer

Q1. How to tackle any uncertain situations? Behavioural questions
Ans. 
Approach uncertain situations with a structured mindset, focusing on analysis, communication, and adaptability.
• Stay calm and assess the situation: For example, during a project delay, analyze the root cause before reacting.

• Gather information: Consult with team members or stakeholders to understand different perspectives.

• Prioritize tasks: Identify what needs immediate attention and what can wait, like addressing critica...read more
Answered by AI
Add your answer

BE Assignment containing how to make a simple backend task

Q1. Coding array, string and react & JavaScript question
Add your answer

Q1. Normal salary discussion and perks
Add your answer

Q1. DATA STRUCTURES , SYSTEM DESIGN
Add your answer
Q2. ALGORITHM , LLD
Add your answer

Q1. Let var const difference
Ans. 
var, let, and const are all used to declare variables in JavaScript, but they have 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
Answered by AI
Add your answer
Q2. Polyfills of bind method
Ans. 
Polyfills of bind method provide a way to use the bind method in older browsers that do not support it natively.
• Polyfill code typically checks if the bind method is available and if not, it creates a new function that mimics the behavior of bind.

• One common polyfill for the bind method is the following: Function.prototype.bind = Function.prototype.bind || function() { // polyfill code here };

• Polyfills are often used to ...read more
Answered by AI
Add your answer

Q1. Make a search bar in React
Ans. 
Create a search bar component in React for filtering data
• Create a functional component for the search bar

• Use state to store the search query

• Implement a onChange event handler to update the search query

• Filter the data based on the search query
Answered by AI
Add your answer
Q2. React js core concepts
Add your answer

Q1. How you structure your work
Add your answer
Q2. How you make a project from scratch
Add your answer

It was a live coding round where expectation was to come up with a framework in Java from Scratch

Q1. It was a DS/Algo Round
Add your answer

Q1. Design Round in HLD
Ans. 
Design Round in HLD involves creating a high-level design for a software system.
• Identify the main components of the system and their interactions

• Define the architecture of the system including layers, modules, and interfaces

• Consider scalability, performance, security, and maintainability

• Use UML diagrams like class diagrams, sequence diagrams, and component diagrams

• Document the design decisions and rationale
Answered by AI
Add your answer

Q1. Resume based questions
Ans. 
I have a strong background in software development with experience in various programming languages and project management.
• Bachelor's degree in Computer Science from XYZ University.

• 3 years of experience working as a software developer at ABC Corp, focusing on web applications.

• Proficient in languages such as Java, Python, and JavaScript, with a recent project involving a full-stack application using React and Node.js.

• Ex...read more
Answered by AI
Add your answer
Q2. Event loop in nodejs
Ans. 
Event loop in Node.js manages asynchronous operations by executing callback functions when certain events occur.
• Event loop is responsible for handling I/O operations, timers, and callbacks in Node.js

• It allows Node.js to perform non-blocking operations efficiently

• Event loop continuously checks the event queue for new events to execute
Answered by AI
Add your answer
Q3. Javascript es6 questions
Add your answer

Q1. Promises in javascript
Ans. 
Promises in JavaScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in JavaScript.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.
Answered by AI
Add your answer