Vyapar Senior Front end Developer Interview Questions and Answers

Q1. Debouncing in react
Ans. 
Debouncing in React is a technique used to limit the number of times a function is called in a specified time frame.
• Debouncing helps in improving performance by reducing unnecessary function calls.

• It is commonly used in scenarios like search bars where we want to wait for user to finish typing before making an API call.

• Example: Using lodash debounce function to delay API call until user stops typing.
Answered by AI
Add your answer
Q2. Throttling in react
Ans. 
Throttling in React helps limit the number of times a function is called within a specified time frame.
• Throttling is used to improve performance by reducing the number of times a function is executed.

• It is commonly used in scenarios like handling scroll events or input changes.

• Example: Using lodash's throttle function to limit the rate of execution of a function.
Answered by AI
Add your answer

Basic in array and function and es6 concepts

Q1. What are closures?
Ans. 
Closures are functions that have access to their own scope, as well as the scope in which they were defined.
• Closures are created when a function is defined within another function and has access to the outer function's variables.

• They allow for maintaining state in an asynchronous environment.

• Closures can be used to create private variables and functions in JavaScript.
Answered by AI
Add your answer

Q1. Basics of JavaScript, Coding
Add your answer

Q1. React Core Concepts, Coding
Add your answer

Q1. Design Jira Dashboard (LLD), WhatsApp (HLD)
Ans. 
Designing Jira Dashboard and WhatsApp HLD
• For Jira Dashboard, focus on displaying project status, issue tracking, and team performance metrics

• For WhatsApp HLD, consider features like messaging, voice and video calls, group chats, and file sharing

• Ensure user-friendly interface and seamless navigation for both applications
Answered by AI
Add your answer

Q1. Html, CSS, JS and React basic questions
Add your answer

Q1. Tell me about yourself
Add your answer
Q2. What is ui and ux difference
Ans. 
UI is the user interface, focusing on the look and feel of a product, while UX is the user experience, focusing on the overall experience of the user interacting with the product.
• UI is the visual aspect of a product, including design elements like colors, typography, and layout.

• UX is the overall experience a user has when interacting with a product, including ease of use, efficiency, and satisfaction.

• UI focuses on the ...read more
Answered by AI
Add your answer

Basics of the C++ and DSA like Array Linkedlist graph