React JS Practice Test for Interviews & Certification 2025

Course Overview

• Course Title: React JS Practice Test for Interviews & Certification 2025
• Instructor: Mehmood Khalil
• Target Audience:
  • ReactJS developers preparing for job interviews
  • Developers aiming for ReactJS certification
  • Professionals looking to strengthen their ReactJS knowledge
• Prerequisites: Basic understanding of ReactJS

Curriculum Highlights

• Key Topics Covered:
  • Core Concepts of ReactJS
  • Component Structure and Design
  • State Management and Data Flow
  • Routing, Performance, and Optimization
  • Advanced Features and Integrations
  • Development Workflow and Best Practices
• Key Skills Learned:
  • JSX and component structure
  • Functional vs. class components
  • Props, state, and lifecycle methods
  • Essential React Hooks: useState, useEffect, useContext
  • Best practices for organizing React components
  • Composition vs. inheritance in component design
  • Higher-Order Components (HOCs) and Render Props
  • Managing controlled and uncontrolled components
  • Local and global state in React JS
  • Using the Context API for state management
  • Redux fundamentals: actions, reducers, and store
  • Fetching and managing data with React Query
  • Effective form handling with Formik and React Hook Form
  • Implementing navigation with React Router
  • Code splitting and lazy loading for performance optimization
  • Preventing unnecessary re-renders with memoization (React.memo, useMemo, useCallback)
  • Debugging performance issues with React Profiler
  • Creating custom hooks for reusable logic
  • Handling errors with error boundaries
  • Leveraging React Suspense and Concurrent Mode for better user experience
  • Using Strict Mode to catch potential issues in development
  • Integrating third-party libraries and APIs in ReactJS apps
  • Setting up projects with Create React App (CRA)
  • Exploring Next.js for server-side rendering (SSR) and static site generation (SSG)
  • Writing unit and integration tests using Jest & React Testing Library
  • Debugging and optimizing with React DevTools
  • Differences between React and React Native
  • Animating UI with Framer Motion and React Spring

Course Format

• Duration: 6 practice tests
• Format: Self-paced online course
• Resources:
  • Access on mobile
  • 180 multiple-choice questions (MCQs)