react-best-practices

React effects should be used as escape hatches to synchronize components with external systems, not for responding to user events, preventing unnecessary re-renders and complex data flows.

Writing type-safe React custom hooks with TypeScript requires correctly typing input parameters and return values, ensuring robust component composition and improved developer experience without losing type inference.

The best way to clean up React effects is returning a cleanup function from the effect body, ensuring synchronization logic correctly halts and preventing memory leaks during component unmounting or re-renders.

Choosing between controlled and uncontrolled component patterns in React depends on whether the parent needs to own the state, with controlled components offering predictable rendering and uncontrolled components managing internal refs.

Yes, you can use these React patterns to refactor legacy .jsx code by auditing existing components and applying standard hook, ref, and effect best practices to reduce bugs and code churn.