Overview of what useEffect hook is. The useEffect hook enables us to run side effects in functional React components. These effects can include sending an asynchronous request to a third party API, logging a value to the console, manually changing th...

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Mitja Potočin
I think there is a mistake in this article.
“ If count’s value is same, the callback effect function ( first argument of useEffect hook ) is called”
If the valu is the same, the useEffect callback will not be run and vice versa.