【发布时间】：2022-11-15 15:03:40
【问题描述】：
当单击“单击我这里”按钮时，我有一个正在创建的模态，此外，模态需要显示一个 toast 模态来传达一些感谢信息。
单击保存时，谢谢模式关闭现有模式。预期的是，当单击保存时，保存模式不应该被卸载，感谢模式应该保持加载到保存模式的顶部。
单击保存时，我收到错误消息
Cannot read properties of undefined (reading 'backdrop')
<!doctype html>
<html lang="en">
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.6.1/jquery.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-Zenh87qX5JnK2Jl0vWa8Ck2rdkQ2Bzep5IDxbcnCeuOxjzrPF/et3URy9Bv1WTRi" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.2/dist/js/bootstrap.bundle.min.js"
integrity="sha384-OERcA2EqjJCMA+/3y+gxIOqMEjwtxJY7qPCqsdltbNJuaOe923+mo//f6V8Qbsw3"
crossorigin="anonymous"></script>
</head>
<body>
<button id="clickme">Click me here</button>
<ul class="list-group task-point">
</ul>
<script>
function showToast(m,title="Error") {
$("#modal")
.html(`<div class="modal fade" id="messagemodal" tabindex="-1" role="dialog" aria-labelledby="messagemodal" aria-hidden="true">
<div class="modal-dialog modal-sm modal-dialog-centered" role="document">
<div class="modal-content">
<div class="p-2 modal-header">
<h5 class="ms-2 modal-title">${title}</h5>
<button type="button" class="me-1 btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
</div>
<div class="text-start modal-body">
${m}<br/><br/>
</div>
</div>
</div>
</div>`);
var modal = new bootstrap.Modal(document.getElementById('messagemodal'), {
keyboard: false
});
modal.show();
}
$("#clickme").click(function (event) {
var code = $(".dropdown-menu").length+1
$(".task-point").append(`
<li class="list-group-item">
<img src="https://img.icons8.com/color/48/000000/networking-manager.png" class="float-start" />
<div class="btn-group float-end">
<button type="button" class="btn dropdown-toggle" data-bs-toggle="dropdown" data-bs-display="static" aria-expanded="false"> Action </button>
<ul class="dropdown-menu dropdown-menu-lg-end">
<li><a data-bs-toggle="modal" href="#exampleModalToggle-${code}" role="button" class="dropdown-item" href="#">Edit ${code}</a></li>
<li><a class="dropdown-item" href="#">Delete ${code}</a></li>
<li><a class="dropdown-item" href="#">Run ${code}</a></li>
</ul>
</div>
<div class="ms-5">This is ${code} item<br/>
<small class="text-secondary">This is a ${code} item description</small>
<div>
<div class="modal fade" id="exampleModalToggle-${code}" aria-hidden="true" aria-labelledby="exampleModalToggleLabel" tabindex="-1">
<div class="modal-dialog modal-fullscreen">
<div class="modal-content">
<div class="modal-header">
<h1 class="modal-title fs-5" id="exampleModalToggleLabel">Create a file</h1>
<button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button>
</div>
<div class="modal-body"> What is Lorem Ipsum? </div>
<div class="modal-footer">
<button class="btn btn-primary" data-bs-target="#exampleModalToggle2" data-bs-toggle="modal" onclick="showToast('Thanks for saving');">Save</button>
</div>
</div>
</div>
</div>
</li>
`);
$(`#exampleModalToggle-${$(".dropdown-menu").length}`).modal("show")
})
</script>
</body>【问题讨论】：
标签： javascript html jquery bootstrap-5