react-hook-form

🥳 feature: add dependent validation - run a dependent field's validation after another field's validation runs (#6141)

const App = () => {
  const { register, getValues } = useForm();

  return (
    <form>
      <input
        {...register('firstName', {
          validate: (value) => {
            return getValues('lastName') === value;
          }
        })}
      />
      <input {...register('lastName', { deps: ['firstName'] })} /> // dependant validation
    </form>
  );
};