我正在尝试制作一个 google script web 应用程序，它从 HTML 表单获取输入并将输入传递给脚本。现在，该功能失败是因为document.getelementbyId('text')回报null而不是实际的表单值。我怎样才能解决这个问题？
索引.html
<!DOCTYPE html>
<html>
<head>
<base target="_top">
<script>
// Prevent forms from submitting.
function preventFormSubmit() {
var forms = document.querySelectorAll('form');
for (var i = 0; i < forms.length; i++) {
forms[i].addEventListener('submit', function(event) {
event.preventDefault();
});
}
}
window.addEventListener('load', preventFormSubmit);
function handleFormSubmit() {
var formObject = document.getElementById('text');
google.script.run.withSuccessHandler(setTable).getSportData(formObject);
console.log(formObject);
}
function setTable(data) {
var div = document.getElementById('output');
div.innerHTML = createTable(data);
}
/**
* Adds an html table
*/
function createTable(tableData) {
var table = document.createElement('table');
var tableBody = document.createElement('tbody');
tableData.forEach(function(rowData) {
var row = document.createElement('tr');
rowData.forEach(function(cellData) {
var cell = document.createElement('td');
cell.appendChild(document.createTextNode(cellData));
row.appendChild(cell);
});
tableBody.appendChild(row);
});
table.appendChild(tableBody);
document.body.appendChild(table);
}
</script>
</head>
<body>
<form id="myForm" onsubmit="handleFormSubmit()">
<input name="text" type="text" />
<input type="submit" value="Submit" />
</form>
<div id="output"></div>
</body>
</html>
Code.gs
//Initalization of global variables for use by the script's custom functions
var ss = SpreadsheetApp.openById("spreadsheetID");
var sheet = ss.getSheetByName("Sheet1");
var sportsFromSheet = sheet.getRange("D4:D12");
var namesFromSheet = sheet.getRange("B4:B12").getValues();
var timesFromSheet = sheet.getRange("A4:A12").getValues();
var NAMES = [];
var TIMES = [];
/**
* Handles HTTP GET requests to the published web app.
* @return {HtmlOutput} The HTML page to be served.
*/
function doGet() {
return HtmlService.createHtmlOutputFromFile('Index');
}
/**
* Gets both names and Times of checked-in people from the spreadsheet from the private function getOutput.
* @return {HtmlOutput} A 2D array containing the names and times.
*/
function getSportData(formObject) {
getNamesInSport(formObject);
getTimesInSport(formObject);
var OUTPUT = [
[NAMES],
[TIMES]
];
return OUTPUT;
}
//Puts the names of every person from an inputted sport into an array.
function getNamesInSport(input) {
var data = sportsFromSheet.getValues();
for (var i = 0; i < data.length; i++) {
if(data[i] == input){
NAMES.push(namesFromSheet[i][0]);
}
}
}
//Puts the times of every person from an inputted sport into an array.
function getTimesInSport(input){
var data = sportsFromSheet.getValues();
for (var i = 0; i < data.length; i ++) {
if(data[i] == input){
TIMES.push(timesFromSheet[i][0]);
}
}
}
重复的为什么 jQuery 或 getElementById 等 DOM 方法找不到该元素？ https://stackoverflow.com/questions/14028959/why-does-jquery-or-a-dom-method-such-as-getelementbyid-not-find-the-element.
您似乎已经回答了自己的问题。
document.getElementById('text')回报null因为...
您没有带有id="text".
document.getElementById将返回null
如果具有指定 ID 的元素不在文档中。 （Mozilla 开发者网络 https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementById#Return_Value)
解决方案是<input type="text" name="text" id="text">
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