多頁表單：如何根據請求無限期地重復一頁？ HTML，CSS，JS

Question

我正在創建一個多頁表單（我的意思是在某些按鈕單擊時，特定元素在隱藏和可見之間更改）遵循此頁面的 setup 。 我有 2 頁：1. 添加動物和 2. 添加另一種動物。 我希望能夠在用戶單擊按鈕之前重復第 2 頁add another animal ，然后再單擊submit ，並存儲所有輸入的動物名稱以發送到 python function （所以每次用戶輸入add another animal頁面上的名稱，之前的動物名稱不會被覆蓋。

下面是我的 HTML、CSS 和 JS。

<div class="section-25">
  <div class="container-5 w-container">
    <div class="text-block-6">Select the level of algorithm you&#x27;re looking to make</div>
    <div class="w-form">
      <form id="wf-form-Email-Form" name="wf-form-Email-Form" data-name="Email Form" method="post" action="/add_animal">

        <!-- PAGE 1 -->

        <div id="page1" class="page">

          <!-- 1ST ANIMAL NAME -->

          <label for="Enter-species" class="custom-question enter-species" id="one_name">What animal are you interested in?</label>
          <input type="text" class="text-field w-input" maxlength="256" name="species" placeholder="Enter name of animal" id="Enter-species" required="">

          <p><input type="button" id="C1" value="Add another animal" onClick="showLayer('page2')"></p>
        </div>

        <!-- PAGE 2 -->

        <div id="page2" class="page">

          <!-- NEXT ANIMAL NAME -->

          <label for="Enter-species" class="custom-question enter-species" id="one_name">What other animal are you interested in?</label>
          <input type="text" class="text-field w-input" maxlength="256" name="another_species" placeholder="Enter name of animal" id="Enter-species">

          <p><input type="button" id="B1" value="Go Back" onClick="showLayer('page1')">
            <input type="button" id="C2" value="Add another animal" onClick="showLayer('page2')">
            <input type="button" id="S1" value="Submit" action="/add_animal" </p>
        </div>
      </form>
    </div>
  </div>
</div>

CSS：

 <!-- CSS -->
  <style>
    .page {
      position: absolute;
      top: 10;
      left: 100;
      visibility: hidden;
    }
  </style>

JS：

  <!-- JAVASCRIPT -->
  <script language="JavaScript">
    var currentLayer = 'page1';

    function showLayer(lyr) {
      hideLayer(currentLayer);
      document.getElementById(lyr)
        .style.visibility = 'visible';
      currentLayer = lyr;
    }

    function hideLayer(lyr) {
      document.getElementById(lyr).
      style.visibility = 'hidden';
    }

    function showValues(form) {
      var values = '';
      var len = form.length - 1;
      //Leave off Submit Button
      for (i = 0; i < len; i++) {
        if (form[i].id.indexOf("C") != -1 ||
          form[i].id.indexOf("B") != -1)
          //Skip Continue and Back Buttons
          continue;
        values += form[i].id;
        values += ': ';
        values += form[i].value;
        values += '\n';
      }
      alert(values);
    }
  </script>

Answer 1

我想你的意思是這樣的：

 let currentLayer = 0; const animalList = []; const form = document.getElementById("wf-form-Email-Form"); const [field, backButton, addButton, submitButton] = form.elements; function showLayer(lyr) { switch(lyr){ case 1: currentLayer++; if (currentLayer-1 == animalList.length){ animalList.push(field.value) form.reset(); backButton.style.display = 'unset'; }else{ if (currentLayer == animalList.length){ addButton.value = 'Add another animal'; field.value = ""; }else{ addButton.value = 'Next'; field.value = animalList[currentLayer]; } } break; case -1: currentLayer--; if(.currentLayer) backButton;disabled = true. if (currentLayer < animalList.length +1){ field;value = animalList[currentLayer]. addButton;value = 'Next';} break. } } submitButton.onClick = function(e){ // serialize animalList and send using AJAX or add a hidden type input and set animalList as it's value }

 .page { position: absolute; top: 10; left: 100; visibility: hidden; } #backButton{ display:none; }

 <div class="section-25"> <div class="container-5 w-container"> <div class="text-block-6">Select the level of algorithm you&#x27;re looking to make</div> <div class="w-form"> <form id="wf-form-Email-Form" name="wf-form-Email-Form" data-name="Email Form" method="post" action="/add_animal"> <label for="Enter-species" class="custom-question enter-species" id="one_name">What other animal are you interested in?</label> <input type="text" class="text-field w-input" maxlength="256" name="another_species" placeholder="Enter name of animal" id="Enter-species"> <p> <input type="button" id="backButton" value="Go Back" onClick="showLayer(-1)"> <input type="button" id="addButton" value="Add another animal" onClick="showLayer(+1)"> <input type="button" id="submit" value="Submit"> </p> </form> </div> </div> </div>