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File Explorer - Machine Coding Question

Build a file explorer component using React with folder/file creation, navigation, and tree structure management

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Countdown Timer Component

Master the art of building countdown timers in React using useEffect hook - perfect for quiz apps, games, and time-sensitive applications.

High-Performance Infinite Scroll Component

Master machine coding by creating an infinite scroll component with virtualization, intersection observer, and advanced performance optimization techniques.

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File Explorer - Machine Coding QuestionProblem Statement🧠 Understanding the Problem🏗️ System Design & ArchitectureData StructureComponent ArchitectureStep-by-Step ImplementationStep 1: Project SetupStep 2: Understanding the Core ConceptsWhat is a Tree Data Structure?Why Use Recursion?Step 3: Creating the Data StructureStep 4: Building the Recursive Folder ComponentStep 5: Creating the Tree Traversal HookStep 6: Styling Our ComponentStep 7: Bringing It All TogetherKey Features Explained1. Recursive Component Structure2. State Management3. Tree Traversal4. Event Handling🧩 Understanding the Code FlowRunning the ApplicationWhat You've LearnedPossible ExtensionsTips for Interview🎉 Conclusion