react hook in details useEffect

 https://www.debuggr.io/react-update-unmounted-component/


https://reacttraining.com/blog/useEffect-is-not-the-new-componentDidMount/


https://daveceddia.com/useeffect-hook-examples/


https://overreacted.io/a-complete-guide-to-useeffect/

https://blog.logrocket.com/how-to-get-previous-props-state-with-react-hooks/


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