How to correctly describe a type in typesctipt?

Question

typescript

I just can’t understand why it’s impossible to destructure the action parameter in the reducer
Without destructuring, everything works as it should, as soon as I try, errors from the typescript immediately appear that there is no such property

Here is the code with destructuring


Here is the code without

Answer 1

The thing is that the profileActionsType type is a discriminated union
The post field is present in only one of its subtypes, so extracting this field from the full type is an error from the point of view of typescript.
Checking for a specific value in the type field is fine as a type guard , which ts will understand.
PS Posting code with pictures is prohibited by the rules of the service