issue: useWatch returntype is not partial when getting specific fields.

[martin-wahlberg]

Version Number

7.43.1

Codesandbox/Expo snack

https://codesandbox.io/s/react-typescript-forked-rlj5bx?file=/src/App.tsx

Steps to reproduce

1. Goto the code sandbox.
2. See the error

Expected behaviour

Typescript should tell me that the fields are possibly undefined.

I guess i am expecting something like

}): DeepPartialSkipArrayKey<FieldPathValue<TFieldValues, TFieldName>> | undefined;

here:
https://github.com/react-hook-form/react-hook-form/blob/master/src/useWatch.ts#L77
and here
https://github.com/react-hook-form/react-hook-form/blob/master/src/useWatch.ts#L110

What browsers are you seeing the problem on?

No response

Relevant log output

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[bluebill1049]

We are moving away from DeepPartial in the next major, this is something that gives us so many issues as such. I would recommend you provide the correct type for your form values.

[martin-wahlberg]

What do you mean by providing correct types? Isn't it correct that form-elements could have a undefined value until they are set?

[bluebill1049]

Isn't it correct that form-elements could have a undefined value until they are set?

Your data type should be partial in the first place, we are moving away DeepPartail in the next major version, and async defaultValues is already not supported by deep partial.

[martin-wahlberg]

Yeah ok then i understand what you mean :) Sounds nice that you are moving away from DeepPartial in v8. Thanks for the help.