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Discussion on: Status instead of isLoading boolean?

asafagranat profile image
Asaf Limi Agranat • Edited

In my opinion you are over simplifying what in reality is mostly a complex matter. To begin with, you might be responsing to a particular article, but in your own standalone article you are not specifying what action you are performing for which you are calling the isLoading status in the first place. I can only infer you are refering to a fetch operation, given the scenrios you lay out. But isLoading is used in many different use cases that have multitude of scenarios of different complexities. You could be loading a new view, refreshing part of the UI, loading pre-fetched data, calculating post action etc. isLoading as boolean is very valid for those many scenarios, and does not correlate to response statuses.
Other than that, isLoading is self-indicative by its name, while the other statuses you exemplify are more abstract in meaning and require closely-coupled context to know how to use them. Self-indicating statuses are to be appreciated, even being boolean. The verbosity of having to check multiple statuses together in order to know how to act on them is not a bad thing, is not anti-pattern, and I'd even dare say they are desired. In the end of the day, we all just want clearly read code, especially when it's someone else's.

joannaotmianowska profile image
Joanna Otmianowska Author

I am not saying that isLoading is always bad. I just wanted to share what I learnt in the article I mentioned. That is really interesting to me because earlier I really didn't even think that in some cases isLoading boolean may be not the best choice

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