我试图在按下按钮时显示一个旋转的加载程序。这些没有影响:
document.getElementsByClass('loader')[0].style.visibility = 'visible';
document.getElementsByClass('loader').style.visibility = 'visible';
我哪里做错了?
超文本标记语言代码
<html>
<script>
function clickMe() {
document.getElementById('message').innerHTML = "mp";
document.getElementsByClass('loader')[0].style.visibility = 'visible';
google.script.run.withSuccessHandler(onSuccess).ChgNm();
}
function onSuccess(value){
document.getElementById('message').innerHTML= value;
}
</script>
<head>
<base target="_top">
</head>
<body>
<style>
.loader {
border: 16px solid #f3f3f3;
border-radius: 50%;
border-top: 16px solid #3498db;
width: 60px;
height: 60px;
-webkit-animation: spin 2s linear infinite; /* Safari */
animation: spin 2s linear infinite;
}
/* Safari */
@-webkit-keyframes spin {
0% { -webkit-transform: rotate(0deg); }
100% { -webkit-transform: rotate(360deg); }
}
@keyframes spin {
0% { transform: rotate(0deg); }
100% { transform: rotate(360deg); }
}
</style>
<div class ='loader' visibility : hidden>Working</div>
<div id="message" style="color:green">test to unhide loader</div>
<p><button onclick="clickMe(); return false;">Look up my personal link</button></p>
</body>
代码
function doGet(e) {
return HtmlService
.createHtmlOutputFromFile('Index.html')
.setTitle("Hello World Example");//We can set title from here
}
function ChgNm(){
return "changed the name"
}
1条答案
按热度按时间yhxst69z1#
你犯了两个错误。
getElementsByClass()不是函数。请将其替换为getElementsByClassName(),如下所示:
document.getElementsByClassName('loader')[0].style.visibility = 'visible';
能见度:hidden是一个CSS属性,所以应该放在style属性里面,如下所示:
<div class ='loader'style="visibility:hidden">Working</div>