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HTML 

              
                <h2>ラジオボタンを使用する例</h2>
<div class="form-item">
  <p>映画を見てどう思いましたか</p>
  <div class="item">
      <input type="radio" name="movie" id="gooood"><label for="gooood">1. とても面白かった</label>
  </div>
  <div class="item">
      <input type="radio" name="movie" id="good"><label for="good">2. 普通に面白かった</label>
  </div>
  <div class="item">
      <input type="radio" name="movie" id="soso"><label for="soso">3. まあまあ</label>
  </div>
  <div class="item">
      <input type="radio" name="movie" id="notgood"><label for="notgood">4. 見て損した</label>
  </div>
</div>

<div class="form-item">
  <p>弊社のどのサービスをご希望ですか？</p>
  <div class="item">
      <input type="radio" name="service" id="goma"><label for="goma">ゴマすりサービス「sesame」</label>
  </div>
  <div class="item">
      <input type="radio" name="service" id="kanji"><label for="kanji">幹事代行サービス「イイカンジ」</label>
  </div>
  <div class="item">
      <input type="radio" name="service" id="keiba"><label for="keiba">競馬予想サービス「けいばん！」</label>
  </div>
</div>

<h2>あまり良くない例</h2>
<div class="form-item" id="pref">
  <p>出身地はどちらですか？</p>
</div>
!

CSS 

              
                .form-item {
  margin-bottom: 20px;
}

label:hover {
  cursor: pointer;
}
!

JS 

              
                const prefList = [
  "北海道","青森県","岩手県","宮城県","秋田県","山形県","福島県",
  "茨城県","栃木県","群馬県","埼玉県","千葉県","東京都","神奈川県",
  "新潟県","富山県","石川県","福井県","山梨県","長野県","岐阜県",
  "静岡県","愛知県","三重県","滋賀県","京都府","大阪府","兵庫県",
  "奈良県","和歌山県","鳥取県","島根県","岡山県","広島県","山口県",
  "徳島県","香川県","愛媛県","高知県","福岡県","佐賀県","長崎県",
  "熊本県","大分県","宮崎県","鹿児島県","沖縄県"
];

prefList.forEach((item) => {
  console.log(item);
  var new_element = '<div class="item"><input type="radio" name="pref" id="'+item+'1'+'"><label for="'+item+'1'+'">'+item+'</label></div>';
  document.getElementById('pref').innerHTML += new_element;
});
!
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