基本上，我試圖在單擊時(shí)將單選按鈕值附加到 div。這可以正常工作，但是當(dāng)單擊另一個(gè)單選按鈕時(shí)我似乎無法清除 div。div 中只能有 1 條附加數(shù)據(jù)。我嘗試在附加值之前使用innerHTML清除div，但似乎不起作用$('input[type="radio"]').one('click', function () {  var getVal = $(this).val();  if ($('.selections').text().length < 0) {    console.log('less than');  }   else if ($('.selections').text().length > 0){    console.log('more than');    $('.selections').innerHTML = "";    $('.selections').append(getVal);  }  console.log(getVal);});<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script><form>  <label>    <span class="radio-c">      <input type="radio" name="q1" value="Between ￡381K and ￡450K" id="between381">      Between ￡381K and ￡450K    </span>  </label>  <label>    <span class="radio-c">      <input type="radio" name="q1" value="Over ￡450K" id="over450">      Over ￡450K    </span>  </label></form><div class="selections"></div>