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javascript - 点击事件关闭菜单

问题描述

我使用以下代码创建了一个汉堡式菜单，该菜单从左侧滑入并覆盖整个屏幕。我的一些菜单链接是指向其他页面的常规链接，而另一些则是指向主页下方的锚链接。但是，当单击锚链接时，您可以看到滚动条已转到该部分，但菜单并未关闭。

我需要在脚本中添加什么（我假设是脚本）才能实现这一点？

function openNav() {
  document.getElementById("mySidenav").style.width = "100%";
}

function closeNav() {
  document.getElementById("mySidenav").style.width = "0";
}
body {
  font-family: "Lato", sans-serif;
}

.sidenav {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: #111;
  overflow-x: hidden;
  transition: 0.5s;
  padding-top: 60px;
  text-align: center;
}

.sidenav a {
  padding: 8px 8px 8px 32px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.sidenav a:hover {
  color: #f1f1f1;
}

.sidenav .closebtn {
  position: absolute;
  top: 0;
  right: 25px;
  font-size: 36px;
  margin-left: 50px;
}
<body>

  <div id="mySidenav" class="sidenav">
    <a href="javascript:void(0)" class="closebtn" onclick="closeNav()">&times;</a>
    <a href="/home/">Home</a>
    <a href="/#services/">Services</a>
    <a href="/clients/">Clients</a>
    <a href="/contact/">Contact</a>
  </div>

  <h2>Animated Sidenav Example Full Width</h2>
  <p>Click on the element below to open the navigation menu.</p>
  <span style="font-size:30px;cursor:pointer" onclick="openNav()">&#9776; open</span>

</body>

标签： javascripthtmlcss

解决方案

首先，我不知道它是否适合您，但是当您href使用它时/#services/它不起作用，所以我建议您放弃/and just href="#services"。

接下来您要做的是添加onclick该特定锚以关闭导航栏：

<a href="#services" onclick="closeNav()">Services</a>

完整的结果：

function openNav() {
  document.getElementById("mySidenav").style.width = "100%";
}

function closeNav() {
  document.getElementById("mySidenav").style.width = "0";
}
body {
  font-family: "Lato", sans-serif;
}

.sidenav {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 1;
  top: 0;
  left: 0;
  background-color: #111;
  overflow-x: hidden;
  transition: 0.5s;
  padding-top: 60px;
  text-align: center;
}

.sidenav a {
  padding: 8px 8px 8px 32px;
  text-decoration: none;
  font-size: 25px;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.sidenav a:hover {
  color: #f1f1f1;
}

.sidenav .closebtn {
  position: absolute;
  top: 0;
  right: 25px;
  font-size: 36px;
  margin-left: 50px;
}
<body>

  <div id="mySidenav" class="sidenav">
    <a href="javascript:void(0)" class="closebtn" onclick="closeNav()">&times;</a>
    <a href="/home/">Home</a>
    <a href="#services" onclick="closeNav()">Services</a>
    <a href="/clients/">Clients</a>
    <a href="/contact/">Contact</a>
  </div>

  <h2>Animated Sidenav Example Full Width</h2>
  <p>Click on the element below to open the navigation menu.</p>
  <span style="font-size:30px;cursor:pointer" onclick="openNav()">&#9776; open</span>
  
  
  <br><br><br><br><br><br><br><br><br>
  <br><br><br><br><br><br><br><br><br>
  <br><br><br><br><br><br><br><br><br>
  
  <div id="services">HI THIS IS SERVICES</div>

</body>

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