I don't get useEffect in React

Could someone explain it to me (please try not to send a link to a website, just explain) ?


Disclaimer: I am not experienced with react and this could all be wrong

Well, I think react keeps track of all elements and other data points in a special way, that could be broken if you for example manually change the DOM. So react uses the affect hook to let you do these changes without messing things up.

I know that, thanks.

So what don’t you get? Could you please clarify.

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Like the times when you should use it, and the second parameter.

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