As a full-stack developer at Melio, working on React-based web applications, I’ve seen firsthand that frontend development is as complex as backend work. Managing the state, ensuring responsiveness…

Roberto Umbelino

Figma

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Frontend development can be as intricate as backend work, especially when managing state and optimizing performance in React applications. The popular useEffect hook, while useful for synchronizing components with external factors, can often lead to issues like unnecessary re-renders and race conditions if misused. This post outlines common mistakes and best practices to avoid such pitfalls, offering solutions for proper cleanup, efficient data flow, and minimizing redundant renders. Guidance is provided on when it's appropriate to use useEffect, including initialization, managing external resources, and handling unmounted components without fear of memory leaks.

Leave useEffect Alone!

Avoiding unnecessary re-renders in React.

an easy way to do this is to try to solve what you want to solve without even thinking about useEffect and if it seems like there is no way then consider useEffect

Yes definitely! useEffect should be used to attache effects like DOM listeners or http calls (and even for this second, a useQuery is more adapted). For the rest, it is a bad habit.

It’s britney, b !! nice article !

yeah useEffect can sometime become pain in a* s