React useEffect Hook tutorial | Learn ReactJS

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In this React useEffect hook tutorial, you will learn how to determine when the useEffect hook is called into action with React. You will also learn how to load and save data with the useEffect hook and how to avoid the biggest useEffect hook mistake.

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React useEffect Hook tutorial | Learn ReactJS

(00:00) Intro
(00:05) Set up
(00:53) useEffect hook with no dependencies
(01:46) useEffect hook at app load
(02:51) useEffect hook only when a dependency changes
(03:55) useEffect is not synchronous
(05:32) Loading data with useEffect
(06:40) Avoid this BIG mistake with useEffect
(07:10) Avoiding a loading error with useState
(08:55) Saving data with useEffect

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