当模式被完全隐藏时，会引发Bootstrap中的hidden.bs.modal事件。
隐藏模态按钮单击-
$("#button1").click(function(){
$("#newModal").modal("hide");
});将其隐藏后，请在模式完全隐藏之前，使用hidden.bs.modal Bootstrap事件生成警报-
$("#newModal").on('hidden.bs.modal', function () {
alert('The modal is completely hidden now!');
});您可以尝试运行以下代码来实现hidden.bs.modal事件-
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<script src="https://cdn.staticfile.org/jquery/3.3.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<style>
#button1 {
width: 140px;
padding: 20px;
bottom: 150px;
z-index: 9999;
font-size:15px;
position: absolute;
margin: 0 auto;
}
</style>
</head>
<body>
<div class="container">
<h2>Sample</h2>
<p>This is demo text.</p>
<p>This is demo text.</p>
<p>This is demo text.</p>
<p>This is demo text.</p>
<p>This is demo text.</p>
<p>This is demo text.</p>
<p>This is demo text.</p>
<p>This is demo text.</p>
<p>This is demo text.</p>
<p>This is demo text.</p>
<p>This is demo text.</p>
<button type="button" class="btn btn-default btn-lg" id="button1">Click to hide</button>
<div class="modal fade" id="newModal" role="dialog">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal">×</button>
<h4 class="modal-title">Information</h4>
</div>
<div class="modal-body">
<p>Crucial Information about the Examination.</p>
</div>
</div>
</div>
</div>
</div>
<script>
$(document).ready(function(){
$("#newModal").modal("show");
$("#button1").click(function(){
$("#newModal").modal("hide");
});
$("#newModal").on('hide.bs.modal', function () {
alert('The modal is about to be hidden!');
});
$("#newModal").on('hidden.bs.modal', function () {
alert('The modal is completely hidden now!');
});
});
</script>
</body>
</html>