无法在React js中设置必填字段

import React, { useState } from 'react';

const MyForm = () => {
  const [name, setName] = useState('');
  const [email, setEmail] = useState('');
  const [error, setError] = useState('');

  const handleSubmit = (e) => {
    e.preventDefault();

    if (!name || !email) {
      setError('Please fill in all required fields');
      return;
    }

    // 执行提交逻辑
    // ...

    // 清空表单数据
    setName('');
    setEmail('');
    setError('');
  };

  return (
    <form onSubmit={handleSubmit}>
      <label>
        Name:
        <input type="text" value={name} onChange={(e) => setName(e.target.value)} />
      </label>
      <br />
      <label>
        Email:
        <input type="email" value={email} onChange={(e) => setEmail(e.target.value)} />
      </label>
      <br />
      {error && <div>{error}</div>}
      <button type="submit">Submit</button>
    </form>
  );
};

export default MyForm;