以下是我想要實現的目標 - 當選擇導航欄中的下拉項時，完成以下兩個操作：轉到目標 id 的 div將導航欄卷起至初始狀態（將其隱藏回完全卷起的狀態）事實證明，我只能做到其中之一，但不能同時做到兩者。有人可以幫助指導我如何實現這兩點嗎？我相信第一個下拉項錨點應該做到這一點，但是，由于某種原因，它在卷起導航欄后不會轉到 targetId。data-toggle="collapse"僅當我刪除和 時，錨點才會帶我到達目標data-target=".navbar-collapse.show"，這是第二個錨點顯示的內容，但導航欄不會卷起。<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css"><nav class="navbar navbar-dark bg-dark fixed-top"> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation"> <span class="navbar-toggler-icon"></span> </button> <div class="collapse navbar-collapse" id="navbarsExampleDefault"> <ul class="navbar-nav mr-auto"> <li class="nav-item dropdown"> <a class="nav-link dropdown-toggle" href="" id="dropdown01" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Menu</a> <div class="dropdown-menu shadow rounded" aria-labelledby="dropdown01"> <a class="dropdown-item" href="#targetId" data-toggle="collapse" data-target=".navbar-collapse.show">nav-link does get hidden, but it doesn't hit the target</a> <a class="dropdown-item" href="#targetId">Hits the target, but the nav-link does not get hidden</a> </div> </li> </ul> </div></nav><!-- navbar ends here --><div id="targetId">Content</div><script src="https://code.jquery.com/jquery-3.4.1.slim.min.js"></script><script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js"></script><script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
1 回答
森林海
TA貢獻2011條經驗 獲得超2個贊
你可以用Javascript它。
document.querySelectorAll('.custom_collapse').forEach(cur => {
cur.addEventListener('click', () => {
document.querySelector('.navbar_collapse').classList.remove('show');
});
});
#targetId {
/* JUST FOR SEE TARGET */
margin-top: 120vh;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
<nav class="navbar navbar-dark bg-dark fixed-top">
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse navbar_collapse" id="navbarsExampleDefault">
<ul class="navbar-nav mr-auto">
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="dropdown01" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">Menu</a>
<div class="dropdown-menu shadow rounded" aria-labelledby="dropdown01">
<a class="dropdown-item custom_collapse" href="#targetId">nav-link does get hidden, but it doesn't hit the target</a>
<a class="dropdown-item custom_collapse" href="#targetId">Hits the target, but the nav-link does not get hidden</a>
</div>
</li>
</ul>
</div>
</nav>
<!-- navbar ends here -->
<div id="targetId">Content</div>
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/umd/popper.min.js"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
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