我在元素<li>上附加了点击事件，但仅在第一个<li>上触发一次。我可以看到其子元素还附加了click事件。请帮助。
$(document).ready(function(){
$(".nav-item").click(function(){
console.log("I am clicked");
});
})<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap Example</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js"></script>
</head>
<body>
<nav class="navbar navbar-expand-md bg-dark navbar-dark">
<!-- Brand -->
<a class="navbar-brand" href="#">Navbar</a>
<!-- Toggler/collapsibe Button -->
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar">
<span class="navbar-toggler-icon"></span>
</button>
<!-- Navbar links -->
<div class="collapse navbar-collapse" id="collapsibleNavbar">
<ul class="navbar-nav">
<li class="myclick nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown">Link A</a>
<div class="dropdown-menu">
<a class="dropdown-item" href="#">Link 1</a>
<a class="dropdown-item" href="#">Link 2</a>
<a class="dropdown-item" href="#">Link 3</a>
</div>
</li>
<li class="myclick nav-item">
<a class="nav-link" href="#">Link B</a>
</li>
<li class="myclick nav-item">
<a class="nav-link" href="#">Link C</a>
</li>
</ul>
</div>
</nav>
</body>
</html>Javascript在HTML中的位置非常重要。看起来click事件未正确附加到HTML DOM元素。
解决方案：
$(document).ready(function(){
$(".nav-item").on("click", function(e){
console.log("I am clicked");
});
})
$(".nav-item").get(0).click(function(){
console.log("I am clicked");
});
try this.
您需要调用本机DOM click（）方法才能触发点击行为。这是jQuery ancher标记的例外。要从jQuery对象获取本机DOM，可以使用get（0）或简单地使用[0]。例如：$（“。nav-item”）。get（0）或$（“。nav-item”）[0]