Initializing Systems...
System 2 · React
Intermediate combat training. Master hooks, routing, and context — the weapons of a skilled React Navigator.
useEffect — The Side Effect Engine
useEffect synchronizes your component with external systems: APIs, timers, subscriptions. Learn when and why side effects belong here.
Data Retrieval Operations
Fetch data from APIs inside useEffect, handle loading states, and manage errors — the full lifecycle of an async data mission.
Cleanup & Dependency Arrays
Master the dependency array rules and write proper cleanup functions. One wrong dependency can cause infinite loops or stale closures.
Effect Drive Debrief
Lock in your useEffect patterns before tackling React Router.
React Router Deployment
Install and configure React Router v6 — the navigation system for multi-page React applications.
Dynamic Routes & Params
Build routes with URL parameters like /mission/:id and read them with useParams to load specific data.
Navigation & Redirects
Use <Link>, <NavLink>, useNavigate, and <Navigate> to move users through your app programmatically and declaratively.
Navigation Grid Debrief
Review React Router patterns before entering the Context Nebula.
Context API — Galactic Broadcast
The Context API lets you broadcast data to any component in the tree without threading props through every level — prop drilling eliminated.
useContext — Receiving the Signal
Create, provide, and consume context values using createContext, Provider, and useContext.
Context Architecture Patterns
Build a complete auth context with login/logout, wrap the app in the Provider, and consume it across multiple components.
Context Nebula Debrief
Consolidate Context patterns before the Custom Hook Forge.
Forging Custom Hooks
Custom hooks are reusable logic weapons — extract stateful patterns into functions that start with 'use' and share them across the fleet.
useFetch — Data Extraction Beam
Build a production-grade useFetch hook with loading, error, and data states that any component can use.
Hook Composition Strike
Compose multiple custom hooks together to build a complex feature — a real-time search with debouncing and caching.
Proxima Station Debrief
Proxima Station cleared. Prepare for Andromeda — expert territory.
Create a multi-page dashboard that fetches live data, uses React Router for navigation, and shares state via Context.