提交后如何清除表单输入?

Question

已经从不同的参考文献尝试了一切，但是，我不能让它工作。我打算用它来做谷歌照片提交表单。我只是想要我的文本输入和文本区清除后，它成功上传的一切。

这是整个HTML代码。

<form id="uploaderForm">
<label for="uploaderForm">Photo Upload Form</label>
<div>
<input type="text" name="applicantName" id="applicantName"
placeholder="Your Name">
</div>
<div>
<input type="text" name="gradesection" id="gradesection"
placeholder="Your Grade Level & Section">
</div><br>
<div>
You can select multiple Photos upload!<br>
<br>
<input type="file" name="filesToUpload" id="filesToUpload" multiple>
<br><br>
<input type="button" value="Submit" onclick="uploadFiles()"> 
</div>
</form>
<br>
<br>
<div id="output"></div>
<script>
var rootFolderId = 'xxxxxxxxxxxxxxxxxxx';
var numUploads = {};
numUploads.done = 0;
numUploads.total = 0;
// Upload the files into a folder in drive
// This is set to send them all to one folder (specificed in the .gs file)
function uploadFiles() {
var allFiles = document.getElementById('filesToUpload').files;
var applicantName = document.getElementById('applicantName').value;
if (!applicantName) {
window.alert('Missing applicant name!');
}
var gradesection = document.getElementById('gradesection').value;
if (!gradesection) {
window.alert('Missing Grade & Section!');
}
var folderName = applicantName + ' - ' + gradesection;
if (allFiles.length == 0) {
window.alert('No file selected!');
} else {
numUploads.total = allFiles.length;
google.script.run.withSuccessHandler(function(r) {
// send files after the folder is created...
for (var i = 0; i < allFiles.length; i++) {
// Send each file at a time
uploadFile(allFiles[i], r.folderId);
}
}).createFolder(rootFolderId, folderName);
}
}
function uploadFile(file, folderId) {
var reader = new FileReader();
reader.onload = function(e) {
var content = reader.result;
document.getElementById('output').innerHTML = 'uploading '
+ file.name + '...';
//window.alert('uploading ' + file.name + '...');               
google.script.run.withSuccessHandler(onFileUploaded)
.uploadFile(content, file.name, folderId);
}
reader.readAsDataURL(file);
}
function onFileUploaded(r) {
numUploads.done++;
document.getElementById('output').innerHTML = 'uploaded '
+ r.fileName + ' (' + numUploads.done + '/'
+ numUploads.total + ' files).';
if (numUploads.done == numUploads.total) {
document.getElementById('output').innerHTML = 'All of the '
+ numUploads.total + ' files are uploaded';
numUploads.done = 0;
}
}
</script>

表单上传并向用户显示响应。

我想重置表单，所以，表单重置到原来的状态，所以当用户上传另一个文件时，它不会再上传同一个文件。现在，提交消息仍然存在，我不知道如何重置表单。

我是新的javascript和我没有什么线索调用休息的形式，任何想法?TIA伙计们:)

Answer 1

由于您的代码片段仅包含input，您可以使用querySelectorAll找到所有输入并重置其value。

下面的例子。当你点击这个按钮时，它会重置所有的输入。

function resetAllInput() {
const allInput = document.querySelectorAll('input');
allInput.forEach( input => {
input.value = "";
})
}
function uploadFiles() {
console.log('uploading files');
resetAllInput();
console.log('Resetted all inputs');
}

<form id="uploaderForm">
<label for="uploaderForm">Photo Upload Form</label>
<div>
<input type="text" name="applicantName" id="applicantName" placeholder="Your Name">
</div>
<div>
<input type="text" name="gradesection" id="gradesection" placeholder="Your Grade Level & Section">
</div><br>
<div>
You can select multiple Photos upload!<br>
<br>
<input type="file" name="filesToUpload" id="filesToUpload" multiple>
<br><br>
<input type="button" value="Submit" onclick="uploadFiles()">
</div>
</form>

Answer 2

你可以给你的输入元素赋null值:

const reset = () => {
let fileInput = document.getElementById('file-input');
fileInput.value = null;
}

<input type="file" id="file-input">
<button onclick="reset()">Reset</button>