All files / src/chap04 FormCheck.js

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import { useState } from 'react';
 
export default function FormCheck() {
  // State 초기화
  const [form, setForm] = useState({
    agreement: true
  });
 
  // 체크박스 변경 시 입력값 State에 반영
  const handleFormCheck = e => {
    setForm({
      ...form,
      [e.target.name]: e.target.checked
    });
  };
 
  // [보내기] 버튼 클릭 시 입력값 로그 출력
  const show = () => {
    console.log(`동의 확인: ${form.agreement ? '동의': '동의하지 않음'}`);
  };
 
  return (
    <form>
      <label htmlFor="agreement">동의합니다:</label>
      <input id="agreement" name="agreement" type="checkbox"
        checked={form.agreement}
        onChange={handleFormCheck} /><br />
      <button type="button" onClick={show}>보내기</button>
    </form>
  );
}