移动端的alert、confirm都会显示来源的url，影响体验
下面的代码将alert和confirm重写了一遍，可去除url
参考了网上代码，完善了confirm不同状态跳转
示例代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>文档标题</title>
</head>
<body>
<script type="text/javascript">
/*remove url of alert/confirm*/
var wAlert = window.alert;
window.alert = function (message) {
try {
var iframe = document.createElement("IFRAME");
iframe.style.display = "none";
iframe.setAttribute("src", ‘data:text/plain,‘);
document.documentElement.appendChild(iframe);
var alertFrame = window.frames[0];
var iwindow = alertFrame.window;
if (iwindow == undefined) {
iwindow = alertFrame.contentWindow;
}
iwindow.alert(message);
iframe.parentNode.removeChild(iframe);
}
catch (exc) {
return wAlert(message);
}
}
var wConfirm = window.confirm;
window.confirm = function (message) {
try {
var iframe = document.createElement("IFRAME");
iframe.style.display = "none";
iframe.setAttribute("src", ‘data:text/plain,‘);
document.documentElement.appendChild(iframe);
var alertFrame = window.frames[0];
var iwindow = alertFrame.window;
if (iwindow == undefined) {
iwindow = alertFrame.contentWindow;
}
var result=iwindow.confirm(message);
iframe.parentNode.removeChild(iframe);
return result;
}
catch (exc) {
return wConfirm(message);
}
}
var r=confirm("Press a button");
if (r==true)
{
document.write("You pressed OK!");
}
else
{
document.write("You pressed Cancel!");
}
</script>
</body>
</html>
原文地址：https://www.cnblogs.com/shuilangyizu/p/10175557.html
时间： 2024-08-01 06:51:33