Here是关于bootstrap dismiss的示例:
<div class="alert alert-warning alert-dismissible" role="alert">
<button type="button" class="close" data-dismiss="alert" aria-label="Close">
<span aria-hidden="true">×</span></button>
<strong>Warning!</strong> Better check yourself, you're not looking too good.
</div>
我不明白附加到button
的javascript处理程序如何确定要关闭的div
元素。如果有多个div
元素包含class="alert alert-warning alert-dismissible"
和role="alert"
,框架如何检测要隐藏的正确元素会怎样?
P.S。如果移除了role="alert"
,它会稳定工作吗?
答案 0 :(得分:2)
按钮位于alert元素内,事件侦听器可以轻松隔离发生事件的元素,并从该元素遍历到其父元素,兄弟元素等
没有框架的简化示例:
$('.alert .myButton').click(function() {
// "this" is instance of myButton event occured on
$(this).closest('div.alert').hide()
})
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="alert">
Content 1 <button class="myButton">Hide Content 1</button>
</div>
<div class="alert">
Content 2 <button class="myButton">Hide Content 2</button>
</div>