检查所有表单字段是否已填写-不起作用

Question

我在Google跟踪代码管理器上有一个事件，该事件应在成功提交表单后触发。 该表单是Cognito Forms的嵌入式代码。 该页面托管在Squarespace中。 使用Google跟踪代码管理器预览，我可以看到，一旦提交，所有条件都将得到满足，但以下功能除外，成功提交后应为“ true”，但是由于某些原因，即使我成功提交了表单，它也是错误的。

可能出什么问题了？ 这是联系我们表格，位于功能下方。 非常感谢。

function areAllFieldsFilled(){
  var requiredFields = document.getElementsByClassName('cognito')[0].getElementsByTagName('form')[0].getElementsByTagName('input');
  var questions = document.getElementsByClassName('cognito')[0].getElementsByTagName('form')[0].getElementsByTagName('textarea')[0];
  var check = 0;

  if (questions == '') {
    check++;
  } else{
    for (var i = 0; i < 3; i++) {
      if (requiredFields[i].value == '') {
        check++;
        break;
      }
    }
  }
  if (check == 0) {
    return true;
  } else {
    return false;
  }
}

Answer 1

我检查了您的表单，看来有两个原因导致您为填写的表单返回false。

1. 正如James在评论中指出的那样，您需要执行questions.value == ''而不是questions == ''

2. 您可能没有注意到的形式中有一个隐藏的<input />标记。 该输入的值始终为空字符串，因为它没有值。 为了快速解决此问题，您可以从1开始循环。 侧面说明 ：循环的长度应为requiredFields.length -1 （因为我们现在从1开始而不是0开始），而不是硬编码3

这是一个有效的例子

 document.addEventListener("DOMContentLoaded", function(event) { document.getElementById("c-submit-button").addEventListener("click", areAllFieldsFilled); }); function areAllFieldsFilled(event) { event.preventDefault(); // For testing, REMOVE THIS var requiredFields = document.getElementsByTagName('form')[0].getElementsByTagName('input'); var questions = document.getElementsByTagName('form')[0].getElementsByTagName('textarea')[0]; var check = 0; if (questions.value == '') { console.log("questions was empty"); check++; } else { for (var i = 1; i < requiredFields.length - 1; i++) { if (requiredFields[i].value == '') { check++; break; } } } console.log(`check count is ${check}`); if (check == 0) { console.log("Returning True"); return true; } else { console.log("Returning False"); return false; } // or replace the above 7 lines with return check == 0 } 

 <form lpformnum="1"> <div class="c-forms-form" tabindex="0"> <div class="c-editor" style="display:none;"> <input type="text" class="c-forms-form-style" style=" background-repeat: no-repeat; background-attachment: scroll; background-size: 16px 18px; background-position: 98% 50%;"> </div> <div class="c-forms-form-body"> <div class="c-forms-template" sys:attach="dataview" dataview:data="{binding entry, source={{ Cognito.Forms.model }} }"> <div class="c-forms-form-main c-span-24 c-sml-span-12"> <div class="c-section c-col-1 c-sml-col-1 c-span-24 c-sml-span-12" data-field="Section"> <div class=""> <div class="c-section c-col-1 c-sml-col-1 c-span-24 c-sml-span-12" data-field="Section"> <div class=""> <div class="c-name c-field c-col-1 c-sml-col-1 c-span-24 c-sml-span-12 c-required" data-field="Name"> <div class="c-label"> <label>Name</label> </div> <div> <div class="c-offscreen"> <label for="c-0-12">First</label> </div> <div class="c-editor c-span-1" style="width: 50%; float: left;"> <input type="text" id="c-0-12" placeholder="First"> </div> <div class="c-offscreen"> <label for="c-1-12">Last</label> </div> <div class="c-editor c-span-1" style="width: 50%; float: left;"> <input type="text" id="c-1-12" placeholder="Last"> </div> </div> <div class="c-validation">First and Last are required.</div> </div> <div class="c-email c-field c-col-1 c-sml-col-1 c-span-24 c-sml-span-12 c-required" data-field="PreferredEmailAddress"> <div class="c-label"> <label for="c-3-11">Preferred Email Address</label> </div> <div class="c-editor"> <input type="text" id="c-3-11"> </div> <div class="c-validation">Preferred Email Address is required.</div> </div> <div class="c-phone c-phone-international c-field c-col-1 c-sml-col-1 c-span-12 c-sml-span-12 c-required" data-field="Phone"> <div class="c-label"> <label for="c-4-10">Phone</label> </div> <div class="c-editor"> <input type="text" id="c-4-10"> </div> <div class="c-validation">Phone is required.</div> </div> <div class="c-yesno-radiobuttons c-field c-col-13 c-sml-col-1 c-span-12 c-sml-span-12" data-field="WouldYouLikeForUsToCallYou"> <legend class="c-label">Would you like for us to call you?</legend> <div class="c-editor c-columns-0"> <label class="c-yesno-radio" for="c-5-8"> <input type="radio" name="group7" id="c-5-8" checked="checked"><span>Yes</span></label> <label class="c-yesno-radio" for="c-5-9"> <input type="radio" name="group7" id="c-5-9"><span>No</span></label> </div> <div class="c-validation"></div> </div> <div class="c-text-multiplelines c-field c-col-1 c-sml-col-1 c-span-12 c-sml-span-12 c-required" data-field="Questions"> <div class="c-label"> <label for="c-6-6">Questions:</label> </div> <div class="c-editor"> <textarea id="c-6-6" type="text" height=""></textarea> </div> <div class="c-validation">Questions: is required.</div> </div> </div> <div class="c-validation"></div> </div> </div> <div class="c-validation"></div> </div> </div> </div> <div id="c-recaptcha-div"></div> <div class="c-forms-error"> <div class="c-validation"></div> </div> <div class="c-button-section"> <div class="c-action"> <button class="c-button" id="c-submit-button">Submit</button> </div> </div> </div> <div class="c-forms-confirmation"> <div class="c-forms-confirmation-message c-html" sys:attach="dataview" dataview:data="{binding entry, source={{ Cognito.Forms.model }} }"><span><p><strong>Thank you for reaching out!</strong></p> <p>We&nbsp;look forward to being in touch with you soon.</p></span></div> </div> </div> </form> 

一些注意事项：

使用更具选择性的选择器将是更具体的方法。