📚 Main Topics

1. Rules of HooksUnderstanding the limitations of using hooks in React.
2. Conditional Hook ExecutionThe need for conditionally running hooks based on certain states.
3. Performance ConsiderationsThe impact of unnecessary renders and memory usage in React applications.
4. Design PatternsIntroduction of a new design pattern for managing hooks efficiently.

✨ Key Takeaways

• Hooks Must Follow RulesHooks cannot be called conditionally (e.g., inside if statements or after return statements).
• Need for Conditional LogicIn many cases, developers need to run hooks based on certain conditions, which can lead to inefficiencies if not handled properly.
• Inefficiencies in Current PatternsRunning hooks every time a component renders can lead to unnecessary function calls and re-renders, especially for components that are not visible.
• Proposed SolutionIntroduce an enabled prop to hooks, allowing them to determine if they should execute their logic based on this prop.

🧠 Lessons Learned

1. Avoid Conditional Hook CallsInstead of trying to conditionally call hooks, manage their execution through props.
2. Memory ManagementBe mindful of memory usage and performance overhead when attaching event listeners or running hooks unnecessarily.
3. Implementing the enabled Pattern
   • Pass an enabled prop to the hook.
   • Use this prop to control whether the hook's logic should run.
   • This approach allows for cleaner and more efficient code, reducing unnecessary computations and memory usage.
4. Reusable Design PatternsThe enabled prop pattern can be applied to various hooks across an application, promoting consistency and efficiency.