Clean Up Your Effects

This lesson emphasizes the crucial practice of cleaning up side effects in React components to prevent unexpected behavior and optimize performance.

• Understanding useEffect Cleanup: Learn how to use the cleanup function returned by useEffect to properly handle resources like network connections, event listeners, and subscriptions.
• Avoiding Memory Leaks and Unexpected Behavior: Discover how neglecting cleanup can lead to memory leaks, multiple event triggers, and other unintended consequences, especially when components mount and unmount frequently.
• Debugging with Strict Mode: Explore how React's Strict Mode helps identify potential issues by intentionally double-invoking effects in development, making it easier to spot missing cleanup logic.

Links:

• Florian’s Next.js with Express and TypeScript Course: https://codinginflow.com/nextjs
• Florian’s free web development playlist on YouTube: https://www.youtube.com/playlist?list=PLrnPJCHvNZuDG6BWjUFVxeWyYlve_SVJO
• Code link: https://github.com/codinginflow/react-best-practices/blob/effect-cleanup/src/app/page.tsx