Type return value of watch method when possible

[axelboc]

I was only able to type the return value for simple uses of the watch method - i.e. watch('myField'). It doesn't work with multiple fields or complex queries, like myArray[0] or myObject.nestedProp. If the field is not typed in the form's interface, the return value has type unknown, just as before.

const { watch } = useForm<{ myField: string }>();
const myFieldValue = watch('myField'); // <= type of `myFieldValue` inferred as `string`

Fixes #576

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Sandbox	Source
react-hook-form-automation-server	Configuration
relaxed-shamir-s6cp9	Issue #576

[bluebill1049]

thank you very much @axelboc

[bluebill1049]

merge when you ready :)

[axelboc]

No worries! I don't have the rights to merge the PR, though, so I'll leave it to you 😉 Thanks!

[bluebill1049]

Oops 😬