Empty array category , why?

Asked Mar 02 '22 at 23:29

Active Mar 02 '22 at 23:31

Viewed 19 times

I was wondering why I get an empty array despite I've used setCategory but If I print (res.data.category), there are data inside this.

If you know anything about this, Thanks for your help.

const [category, setCategory] = useState([]);


    var listItems = '';
    useEffect(() => {

axios.get(`/api/getCategory`).then(res => {

if (res.data.status === 200) {
                    setCategory(res.data.category);
                    console.log(res.data.category);

                }
            });
     
    }, []);

edited Mar 02 '22 at 23:31

Drew Reese

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asked Mar 02 '22 at 23:29

gabriel

Other than the initial state, where is there an empty array? – Drew Reese Mar 02 '22 at 23:30
It's category If I print this It looks empty. I need to set the data into category because I'm planning to use this to render in html later. – gabriel Mar 02 '22 at 23:32
Where are you printing `category`? Right after enqueueing the state update? – Drew Reese Mar 02 '22 at 23:33
yes, after setCategory(); – gabriel Mar 02 '22 at 23:34
I see. React state updates are not immediately processed, they are enqueued and asynchronously processed. If you want to log state updates use an `useEffect` hook with a dependency on the value you want to log. – Drew Reese Mar 02 '22 at 23:35

Empty array category , why?

0 Answers0