Navalt
Home Centre Interview Questions and Answers
Q1. What are performance optimization techniques used in react?
Performance optimization techniques in React improve rendering speed and user experience.
Code splitting to load only necessary components
Memoization to prevent unnecessary re-renders
Virtualization for long lists to improve rendering performance
Using shouldComponentUpdate or React.memo for functional components
Minimizing unnecessary re-renders by using PureComponent or React.PureComponent
Q2. What is the difference between Server-Side Rendering and Client-Side Rendering
Server-Side Rendering is rendering the web page on the server and sending the fully rendered page to the client, while Client-Side Rendering is rendering the web page on the client's browser using JavaScript.
Server-Side Rendering generates the HTML on the server and sends it to the client, resulting in faster initial page load.
Client-Side Rendering loads a basic HTML page first and then uses JavaScript to render the content on the client's browser, which can result in slower ...read more
Q3. How you manage state in React application
State in React is managed using useState hook for functional components and this.state for class components.
Use useState hook for managing state in functional components
Use this.state for managing state in class components
State can be passed down to child components using props
State can be updated using setState method
Q4. What is react, and explain how it works
React is a JavaScript library for building user interfaces.
React allows developers to create reusable UI components.
It uses a virtual DOM to improve performance by only updating the necessary parts of the actual DOM.
React uses a unidirectional data flow, making it easier to manage state and props.
React can be used with other libraries like Redux for state management.
Q5. what are Hooks, explain them
Hooks are a feature in React that allow you to use state and other React features in functional components.
Hooks were introduced in React 16.8.
They allow you to use state and other React features without writing a class component.
Examples of hooks include useState, useEffect, and useContext.
Q6. Coding test for second largest number in an array
Interview Process at Home Centre
Top Interview Questions from Similar Companies
Reviews
Interviews
Salaries
Users/Month