Estou testando algum código que escrevi no Script do Google Apps. Eu exigi que meus campos tivessem texto, mas quando o testo com campos nulos, o código do lado do servidor é executado de qualquer maneira. O código aciona o pop-up informando que os campos são obrigatórios, mas envia o formulário ao clicar em "OK" no pop-up. Eu testei onde preenchi todos os campos e depois enviei os envios perfeitamente. Eu acho que só tenho meu código para trás ou algo no meu "onclick". Eu tenho um conhecimento básico de codificação, então desculpe se esta é uma pergunta idiota. Obrigado, obrigado, obrigado antecipadamente.

<p>
<form id="myForm">
  <h1>NHD Paper Upload</h1>
  <label>Name</label>
  <input type="text" name="myName" class="required" placeholder="Enter your full name..">
  <label>Division</label>
  <input type="text" name="myDivision" class="required" placeholder="(ex. Junior or Senior)">
  <label>School</label>
  <input type="text" name="mySchool" class="required" placeholder="Enter your school..">
  <label>Affiliate</label>
  <input type="text" name="myAffiliate" class="required" placeholder="Enter your affiliate..">
  <label>Select file to upload. Make sure your file is labeled in the following manner <b>LastName_Division_School_State.pdf</b></label>
  <input type="file" name="myFile">
  <input type="submit" value="Submit File" 
       onclick="validateForm();
                this.value='Please be patient while your paper is uploading..';
                google.script.run.withSuccessHandler(fileUploaded)
                .uploadFiles(this.parentNode);
                return false;">
  <br />
  <label><b>Once upload is successful please stay on this window to copy and paste the URL produced on the next screen into registration.</b></label>
   <br />
  <label><b>If you have any issues or questions please send an email to <a href="mailto:[email protected]">[email protected]</a>.</b></label>
</form>

</p>

<div id="output"></div>

<script>
    function validateForm() {
    var x=document.getElementsByClassName('required');
    for(var i = 0; i <x.length; i++){
       if (x[i].value == null || x[i].value == "")
       {
          alert("All fields must be filled out.");
          return false;
          }
       }
    }
    function fileUploaded(status) {
        document.getElementById('myForm').style.display = 'none';
        document.getElementById('output').innerHTML = status;
    }

</script>

<style>
 input { display:block; margin: 15px; }
 p {margin-left:20px;}
</style>

e aqui está o javascript

function doGet(e) {
  return HtmlService.createHtmlOutputFromFile('form.html');
}

function uploadFiles(form) {

  try {

    var dropbox = "NHD Papers";
    var folder, folders = DriveApp.getFoldersByName(dropbox);

    if (folders.hasNext()) {
      folder = folders.next();
    } else {
      folder = DriveApp.createFolder(dropbox);
    }

    var blob = form.myFile;    
    var file = folder.createFile(blob);    
    file.setDescription("Uploaded by " + form.myName + ", Division: " + form.myDivision + ", School: " + form.mySchool + ", State: " + form.myState);

    return "<h2>File uploaded successfully!</h2><p>Copy and paste the following URL into registration:<br /><br /><strong>" + file.getUrl() + '</strong></p>';

  } catch (error) {

    return error.toString();
  }

}