State Management · Middle · Question 69 of 75

What does `keepPreviousData: true` do in SWR when the key changes (e.g. a new search query)?

✓Correct answer: Keeps showing the previous key's data until the new data arrives
2Stores all previous responses forever
3Prevents the key from changing

Explanation

It avoids flashing an empty state while typing. Show a subtle indicator using isLoading/isValidating.

Further reading

SWR: API (return values and options) ↗

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