我正在使用带有Typescript的React Hook表单，字符串不接受传入数据

import { useForm } from 'react-hook-form';

type FormData = {
  name: string;
};

const MyForm = () => {
  const { register, handleSubmit } = useForm<FormData>();

  const onSubmit = (data: FormData) => {
    console.log(data);
  };

  return (
    <form onSubmit={handleSubmit(onSubmit)}>
      <input {...register('name', { required: true })} />
      <input type="submit" />
    </form>
  );
};

const defaultValues: FormData = {
  name: '' as string, // 确保类型匹配
};

{...register('name', { required: true, pattern: /^[A-Za-z]+$/ })} // 示例正则表达式

const onSubmit = (data: FormData) => {
  if (data.name) {
    console.log('Submitted name:', data.name);
  }
};