react-hooks-patterns

name	react-hooks-patterns
description	Master React Hooks including useState, useEffect, useContext, useReducer, and custom hooks with production-grade patterns
sasmp_version	2.0.0
bonded_agent	02-hooks-patterns
bond_type	PRIMARY_BOND
input_validation	{"required_context":[{"react_version":">=18.0.0"},{"node_version":">=18.0.0"}],"parameter_types":{"hook_name":"string","dependencies":"array"}}
output_format	{"code_examples":"jsx","test_template":"jest"}
error_handling	{"patterns":["exponential_backoff","abort_controller","cleanup_functions"],"retry_config":{"max_retries":3,"backoff_multiplier":2}}
observability	{"logging":"structured","metrics":["render_count","effect_duration"]}

React Hooks Patterns Skill

Overview

Master React Hooks patterns including built-in hooks (useState, useEffect, useContext, useReducer, useCallback, useMemo) and custom hook development for reusable logic.

Learning Objectives

• Understand all built-in React Hooks
• Create custom hooks for code reuse
• Implement advanced hook patterns
• Optimize performance with hooks
• Handle side effects effectively

Core Hooks

useState

const [state, setState] = useState(initialValue);

// Lazy initialization for expensive computations
const [state, setState] = useState(() => expensiveComputation());

// Functional updates when state depends on previous value
setState(prev => prev + 1);

useEffect

useEffect(() => {
  // Side effect code
  const subscription = api.subscribe();

  // Cleanup function
  return () => {
    subscription.unsubscribe();
  };
}, [dependencies]); // Dependency array

useContext

const value = useContext(MyContext);

// Best practice: Create custom hook
function useMyContext() {
  const context = useContext(MyContext);
  if (!context) {
    throw  ();
  }
   context;
}