simple question here. How can I find a key in the state where the value is true? For instance. Lets say I have this set as state:
const [page, setPage] = useState({ 1: false, 2: false, 3: false, 4: true, 5: false, 6: false, 7: false });
How can I return the key where the value is true? in this case 4?
I would also like to return the length of the key / value pairs (7) and even be able to loop though the key / value pairs but that isn’t as important as my main question.
Hope you can help. Thanks.
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Answer
You can iterate through an object using
Object.keys(myObject)
that will return all keys.Object.values(myObject)
that will return all values.Object.entries(myObject)
that will return all keys and values.
Should look like this:
for (const [key, value] of Object.entries(page)) { if (value) { console.log(key); } }