// BEFORE: The God Component function ProductCard( product ) const [isLoading, setIsLoading] = useState(false); const user, updateCart, trackEvent, theme = useAppContext(); // ... 200 lines of logic
Alan pointed to a single file: services/websocket.ts .
Three weeks later, a new feature arrived: "Real-time Inventory." Old Alan would have panicked. New Alan smiled.
"Never mix them," Alan said. "If a user closes a modal, don’t call the server. If a product price changes, don’t save it in Zustand. Everything has a home."
And for the first time in a year, his phone did not ring.
He introduced a . Plain TypeScript classes: CartService , UserSession , AnalyticsTracker . These had zero React imports. They were tested with Jest in 12ms. They could run on a server, a worker, or a toaster.
// BEFORE: The God Component function ProductCard( product ) const [isLoading, setIsLoading] = useState(false); const user, updateCart, trackEvent, theme = useAppContext(); // ... 200 lines of logic
Alan pointed to a single file: services/websocket.ts . alan alickovic react application architecture for production
Three weeks later, a new feature arrived: "Real-time Inventory." Old Alan would have panicked. New Alan smiled. // BEFORE: The God Component function ProductCard( product
"Never mix them," Alan said. "If a user closes a modal, don’t call the server. If a product price changes, don’t save it in Zustand. Everything has a home." New Alan smiled
And for the first time in a year, his phone did not ring.
He introduced a . Plain TypeScript classes: CartService , UserSession , AnalyticsTracker . These had zero React imports. They were tested with Jest in 12ms. They could run on a server, a worker, or a toaster.
