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🚀 React Hooks Complete Guide

Welcome to your comprehensive React Hooks learning resource! This guide covers all React hooks from basic to advanced, with practical examples and interview-ready explanations.

16Hooks Covered
50+Code Examples
100%Interview Ready

🎯 Core Hooks (Start Here)

Beginner

useState

Local component state management, functional updates, lazy initialization, and batching.

Beginner

useEffect

Side effects, cleanup functions, dependency arrays, and common pitfalls to avoid.

Intermediate

useLayoutEffect

Synchronous effects after DOM mutations, layout measurements before paint.

Beginner

useRef

DOM references, mutable values, instance variables without triggering re-renders.

Intermediate

useContext

Share values across components without prop drilling, context optimization patterns.

Advanced

useReducer

Complex state management with pure reducers, actions, and immutable updates.

⚡ Performance & Optimization

Intermediate

useMemo

Memoize expensive computations, referential equality, and optimization strategies.

Intermediate

useCallback

Stable function references, React.memo optimization, dependency management.

Beginner

useId

Generate stable, unique IDs for accessibility and SSR-safe applications.

🔧 Advanced & Imperative

Advanced

useImperativeHandle

Expose imperative APIs through refs, controlled component interfaces.

Advanced

useTransition

Mark updates as non-urgent, improve user experience with concurrent rendering.

Advanced

useDeferredValue

Defer expensive updates, lag behind fast-changing values for smooth UX.

🆕 React 19 Form Hooks

Intermediate

useActionState

Wire form actions into component state, handle pending states and errors.

Intermediate

useFormStatus

Access form submission status, create loading states and submission feedback.

Advanced

useOptimistic

Optimistic UI updates, rollback on failure, improved perceived performance.

🛠️ Custom Hooks & Patterns

Intermediate

Custom Hooks

Build reusable logic: useLocalStorage, useFetch, useDebounce, and more patterns.


💡 Learning Tips

🎯 Start with the Basics

Master useState and useEffect before moving to advanced hooks. They form the foundation for everything else.

🔬 Practice with Examples

Each hook page includes runnable examples. Import them into your development environment and experiment.

📚 Read the Mental Models

Understanding the "why" behind each hook is more valuable than memorizing syntax. Focus on the concepts.

⚡ Performance Matters

Learn useMemo and useCallback early. They're essential for building performant React applications.

💡 Pro Tip: Use this guide as a reference during development. Each hook page is designed for quick lookup and includes common patterns you'll encounter in real projects.

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