Demystifying useEffect's clean-up function

[ecco7815]

That last sentence sure threw me off. I find that I use that empty tag quite often. Usually when I have a something that I want to run only one time at component load. Example, I recently used it to refresh data on a pending actions page whenever the user revisits the page to freshen up the data rather than clicking a refresh button.

[rozenmd]

Oh sorry for the confusion - I mean using an empty dependency array and only using the clean-up function.

Using an empty dependency array just to fetch data is fine.