Typing of data for useQuery when placeholder data is set? #9829
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TkDodo
miccoh1994
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Hi there, Something I noticed recently is that when using placeholder data, the return type of useQuery in the react package is undefined. This seems counter intuitive? I would expect that with a static object in placeholderData that the return type of data would be defined. Further, in my very basic testing it is always defined? 
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Answered by
TkDodo
Nov 1, 2025
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I think I answered this on discord, but this is on purpose, as data is undefined when the query errors when you use https://tkdodo.eu/blog/placeholder-and-initial-data-in-react-query |
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miccoh1994
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I think I answered this on discord, but this is on purpose, as data is undefined when the query errors when you use
placeholderData:https://tkdodo.eu/blog/placeholder-and-initial-data-in-react-query