I have a state that should be a dictionary like so:

[personInfo, setPersonInfo] = useState({"firstName": "", "lastName": ""});

I want to update this state like so:

setPersonInfo(prevPersonInfo => prevPersonInfo["firstName"] = "name")

But this is not working.

Please do not recommend that I store two separate states for firstName and lastName. For my particular use case, it is necessary that I use a dictionary.