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[英]affect only the clicked element in jquery for multiple elements with same class
[英]jQuery: Only affect elements with a certain class that are children of another element
我有一个jQuery函数,可通过单击更改其类来切换下拉导航菜单:
$(function () { $('.nav-titles').on('click', function() { $('.nav-dropdown').toggleClass('nav-dropped-down'); }); });
<nav> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> </nav>
问题在于,它更改了所有下拉菜单的类,而不仅仅是单击按钮的类。 我能做些什么,使其仅更改其.nav-titles
按钮正下方的.nav-dropdown
吗?
根据要求添加了HTML结构。
您需要找到父li
元素,并在其上查找下拉列表类:
$('.nav-titles').on('click', function() {
$(this).closest('li').find('.nav-dropdown').toggleClass('nav-dropped-down');
});
事实是,您不能单击nav-titles
类,因为它是由其li
父级包装的,因此您必须为click&不是nav-titles
类选择li
标签,然后在其中搜索nav-dropdown
类它的。
$(function () {
$('.nav-titles').on('click', function() {
$(this).closest('.nav-dropdown').toggleClass('nav-dropped-down');
});
});
$('li').on('click', function() { $(this).find('.nav-dropdown').toggleClass('nav-dropped-down'); });
.nav-dropped-down { height:20px; background-color:red; }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <nav> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> <li> <a class="nav-titles"></a> <div class="nav-dropdown"></div> </li> </nav>
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