ra-core/src/form/useFormValues.ts

Core components of react-admin, a frontend Framework for building admin applications on top of REST services, using ES6, React

import { FieldValues, useFormContext, useWatch } from 'react-hook-form';

// hook taken from https://react-hook-form.com/docs/usewatch/#rules
export const useFormValues = <
    TFieldValues extends FieldValues = FieldValues,
>() => {
    const { getValues } = useFormContext<TFieldValues>();

    return {
        ...useWatch(), // subscribe to form value updates
        ...getValues(), // always merge with latest form values
    };
};