如何用模态框替换 javascript 警报？
根据某些数据库结果通过回显触发 javascript 警报
if response is a
{
<script type="text/javascript">alert("response is a.");</script>
}
else
{
<script type="text/javascript">alert("response is not a.");</script>
}
我正在使用引导程序，如果我们可以用引导程序模式替换警报，那就完美了
【问题讨论】：
alert 函数。看看这个问题：stackoverflow.com/questions/1729501/javascript-overriding-alert
标签： javascript twitter-bootstrap modal-dialog alerts
冒昧为您创建了一个 jsbin 示例，基于您可以在以下问题中找到的代码：JavaScript: Overriding alert()
http://jsbin.com/UzUDOno/1/edit
请注意，覆盖警报可能不是一个好主意，尤其是因为您会错过常规 javascript 警报的阻止属性。 正如您在我的示例中所看到的，如果您快速连续使用 2 个警报，则最后一个将覆盖之前的警报。
【讨论】：
alert('moo') 的调用，然后是 alert('cow')。 “moo”警报永远不会出现。那可能是因为这仍然是异步的。可能会显示“moo”，但它不会在返回之前等待用户响应并且“cow”会覆盖它。它不是浏览器默认alert()的真正替代品。
只是补充@Kippie。
http://jsbin.com/sadesukuli/2/edit?html,output
<!DOCTYPE html>
<html>
<head>
<script src="http://code.jquery.com/jquery.min.js"></script>
<link href="http://getbootstrap.com/2.3.2/assets/css/bootstrap.css" rel="stylesheet" type="text/css" />
<link href="http://getbootstrap.com/2.3.2/assets/css/bootstrap-responsive.css" rel="stylesheet" type="text/css" />
<script src="http://getbootstrap.com/2.3.2/assets/js/bootstrap.js"></script>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
<script type="text/javascript">
(function() {
var proxied = window.alert;
window.alert = function() {
modal = $('<div id="myModal" class="modal hide fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"><div class="modal-header"><button type="button" class="close" data-dismiss="modal" aria-hidden="true">×</button><h3 id="myModalLabel">Modal header</h3></div><div class="modal-body"><p>One fine body…</p></div><div class="modal-footer"><button class="btn" data-dismiss="modal" aria-hidden="true">Close</button></div></div>');
modal.find(".modal-body").text(arguments[0]);
modal.modal('show');
};
})();
alert('moo');
alert('cow');
</script>
</body>
</html>
"您的 jsbin 示例显示了对 alert('moo') 的调用，然后是 alert('cow')"
我的示例同时显示了“moo”和“cow”。
【讨论】：
更新了@omar-fernando-pessoa 答案以使用引导程序 3.4.1
https://jsbin.com/monupudode/1/edit?html,output
<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery.min.js"></script>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css" integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">
<!-- Latest compiled and minified JavaScript -->
<script src="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js" integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd" crossorigin="anonymous"></script>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
<script type="text/javascript">
(function() {
var proxied = window.alert;
window.alert = function() {
modal = $('<div id="myModal" class="modal fade" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true"><div class="modal-dialog" role="document"><div class="modal-content"><div class="modal-header"><button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">×</span></button><h4 id="myModalTitle" class="modal-title">Modal title</h4></div><div class="modal-body"><p>One fine body…</p></div><div class="modal-footer"><button type="button" class="btn btn-default" data-dismiss="modal">Close</button></div></div></div></div>');
modal.find(".modal-body").text(arguments[0]);
modal.modal('show');
};
})();
alert('moo');
alert('cow');
</script>
</body>
</html>
并针对 bootstrap 5.1.3 进行了更新
https://jsbin.com/mimexomela/1/edit?html,output
<!DOCTYPE html>
<html>
<head>
<script src="https://code.jquery.com/jquery.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-1BmE4kWBq78iYhFldvKuhfTAU6auU8tT94WrHftjDbrCEXSU1oBoqyl2QvZ6jIW3" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
<script type="text/javascript">
(function() {
var proxied = window.alert;
window.alert = function() {
modaldiv = $('<div id="myModal" class="modal" tabindex="-1" aria-labelledby="myModalLabel" aria-hidden="true"><div class="modal-dialog"><div class="modal-content"><div class="modal-header"><h5 id="myModalTitle" class="modal-title">Modal title</h5><button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button></div><div class="modal-body"><p>Modal body text goes here.</p></div><div class="modal-footer"><button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Close</button></div></div></div></div>');
modaldiv.find(".modal-body").text(arguments[0]);
modal = new bootstrap.Modal(modaldiv);
modal.show();
};
})();
alert('moo');
alert('cow');
</script>
</body>
</html>
【讨论】：