React Js Interview Questions Advanced
Advanced React JS Interview Questions with Solutions
React Js Interview Questions Advanced
Advanced React JS interview questions delve into the intricacies of the framework, exploring topics such as state management, performance optimizations, error handling, and architecture patterns. These questions assess candidates' in-depth understanding of React's principles, their ability to optimize complex applications, and their familiarity with industry best practices. By exploring these advanced concepts, interviewers can gauge a candidate's proficiency in handling real-world development challenges and their potential to contribute effectively to a team.
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1 - Virtual DOM vs Real DOM: Virtual DOM is a lightweight copy of the real DOM, making it easier to update the UI efficiently. The real DOM is the actual representation of the UI in the browser.
2) React Router: A library for managing client side routing in React applications, allowing for easy navigation between different pages.
3) Context API: A way to pass data deeply through a React component tree without having to explicitly pass props down each level.
4) Hooks: Functions that allow you to use state and other React features in functional components.
5) Redux: A state management library that provides a central store for the application's state and provides a way to update it in a predictable way.
6) Higher order components (HOCs): Functions that take a component as an argument and return a new component with enhanced functionality.
7) Render props: A technique for sharing code between components that pass a function as a prop, which the calling component can then invoke.
8) Server side rendering (SSR): Rendering React applications on the server side before sending them to the client, improving initial page load performance.
9) Concurrent mode: A feature that allows React to split rendering into multiple phases, enabling more fine grained control over the UI update process.
10) Suspense: A mechanism for handling asynchronous data loading and rendering, allowing components to wait for data before displaying to the user.
11 - Error boundaries: Components that handle errors and display a fallback UI, preventing the entire application from crashing due to an error in a specific component.
12) Lazy loading: A technique for loading components on demand, reducing the initial bundle size and improving performance.
13) Code splitting: Dividing the application code into smaller chunks that can be loaded asynchronously, reducing page load times.
14) React Native: A framework for building native mobile applications using React.
15) Performance optimizations: Techniques such as memoization, prop drilling, and using the profiler to identify and improve performance bottlenecks in React applications.
Strategies to Increase Points:
1. Maintain a High Credit Score:
- Pay bills on time, every time.
- * Keep credit utilization low (below 30%).
- * Reduce outstanding balances.
- * Avoid opening multiple new credit lines in a short period.
- 2. Lengthen Credit History:
- * Keep existing credit accounts open and active for as long as possible.
- * If necessary, apply for a secured credit card or become an authorized user on someone else's account.
- 3. Diversify Credit Mix:
- * Have a mix of revolving credit (e.g., credit cards) and installment loans (e.g., car loans, student loans).
- * Avoid having too much credit in any one category.
- 4. Dispute Errors on Credit Report:
- * Regularly review credit reports and dispute any inaccuracies promptly.
- * Contact the credit bureaus and creditors to rectify errors.
- 5. Manage Hard Inquiries:
- * Limit applying for new credit too often.
- * Space out applications for credit over time to minimize hard inquiries.
- 6. Avoid Negative Items:
- * Make every effort to avoid missed payments, collections, or bankruptcies.
- * If negative items appear on your report, dispute them or follow the necessary steps for removal.
- 7. Consider Credit Monitoring and Repair:
- * Use a credit monitoring service to track your credit score and receive alerts for changes.
- * If needed, consult with a reputable credit repair company to identify and address credit problems.
- 8. Practice Responsible Credit Use:
- * Use credit responsibly and within your means.
- * Avoid carrying high balances or maxing out credit limits.
- * Make regular payments towards your debts.
- 9. Explore Credit Building Loans:
- * Consider taking out a small credit builder loan to establish or improve credit history.
- * Make on time payments and repay the loan as agreed.
- 10. Establish Authorized User Status:
- * Become an authorized user on the account of someone with good credit.
- * Ensure that the primary cardholder makes timely payments and maintains a low credit utilization ratio.
- Course Overview
- This advanced React JS interview questions course delves into complex topics and challenging scenarios to prepare you for the toughest interviews.
- Course Description
- Prepare for advanced React.js interview challenges with this comprehensive course. Delving into the depths of popular interview topics, you'll master advanced concepts, understand complex algorithms, and gain insights into the latest industry trends and best practices.
- Key Features
- 1 - Comprehensive Tool Coverage: Provides hands-on training with a range of industry-standard testing tools, including Selenium, JIRA, LoadRunner, and TestRail.
- 2) Practical Exercises: Features real-world exercises and case studies to apply tools in various testing scenarios.
- 3) Interactive Learning: Includes interactive sessions with industry experts for personalized feedback and guidance.
- 4) Detailed Tutorials: Offers extensive tutorials and documentation on tool functionalities and best practices.
- 5) Advanced Techniques: Covers both fundamental and advanced techniques for using testing tools effectively.
- 6) Data Visualization: Integrates tools for visualizing test metrics and results, enhancing data interpretation and decision-making.
- 7) Tool Integration: Teaches how to integrate testing tools into the software development lifecycle for streamlined workflows.
- 8) Project-Based Learning: Focuses on project-based learning to build practical skills and create a portfolio of completed tasks.
- 9) Career Support: Provides resources and support for applying learned skills to real-world job scenarios, including resume building and interview preparation.
- 10) Up-to-Date Content: Ensures that course materials reflect the latest industry standards and tool updates.
Benefits of taking our course
Functional Tools
1 - React Router: A library for managing client side routing in React applications, allowing for seamless navigation between pages and components.
2) Redux: A state management library that provides a predictable and centralized way to manage application state, ensuring consistency and eliminating unexpected side effects.
3) Apollo GraphQL: A client library that simplifies the process of interacting with GraphQL servers, offering features like query caching, automatic error handling, and real time updates.
4) Jest: A testing framework designed specifically for React applications, allowing developers to write concise and expressive tests for both the UI and business logic.
5) Storybook: A tool for building and managing reusable UI components, enabling rapid development and ensuring consistency across different parts of the application.
6) create react app: A toolchain and template that provides a standardized setup for creating and developing new React applications, simplifying the initial project configuration and offering built in functionality like code splitting and hot reloading.
Ways to Get More Points:
1. Complete Assigned Activities:
- Submit assignments on time.
- * Participate actively in class discussions and group projects.
- * Attend extra help sessions or tutorials.
- 2. Participate in Class Activities:
- * Ask insightful questions.
- * Provide thoughtful contributions to discussions.
- * Share your knowledge and experiences.
- 3. Seek Extra Credit Opportunities:
- * Offer to assist the instructor with grading or other tasks.
- * Participate in research projects or presentations.
- * Create original content or projects that demonstrate your understanding.
- 4. Attend Study Sessions:
- * Review material with classmates.
- * Form study groups and work together to prepare for exams.
- * Attend study sessions organized by the instructor or teaching assistants.
- 5. Use Resources:
- * Utilize textbooks, lecture notes, and online materials.
- * Seek support from the library, academic support services, or tutors.
- * Attend workshops or seminars to enhance your skills.
- 6. Practice Regularly:
- * Solve problems, write essays, or complete other assignments regularly.
- * The more you practice, the more confident and prepared you will be.
- 7. Take Advantage of Feedback:
- * Ask the instructor for feedback on your work.
- * Use this feedback to identify areas for improvement and adjust your study strategies.
- 8. Engage with the Instructor:
- * Attend office hours and ask questions about the material.
- * Seek clarification on concepts and ask for additional guidance.
- * Show the instructor that you are interested and eager to learn.
- 9. Collaborate with Classmates:
- * Share notes and study tips.
- * Work together on group projects and assignments.
- * Provide support and motivation to each other.
- 10. Be Prepared:
- * Arrive at class on time and well prepared.
- * Bring necessary materials and have completed any assigned readings.
- * Being prepared helps you engage in class and maximize learning.
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Contact Info:
Roshan Chaturvedi
Message us on Whatsapp: +91 9987184296
Email id: info@justacademy.co
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