Phương thức getInstance()
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Get Bootstrap Tab Instance Using JavaScript</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.0.2/dist/js/bootstrap.bundle.min.js"></script>
<script>
document.addEventListener("DOMContentLoaded", function(){
var tabList = [].slice.call(document.querySelectorAll("#myTab a"));
tabList.forEach(function(tab){
new bootstrap.Tab(tab);
});
var btn = document.getElementById("myBtn");
var element = document.querySelector("#myTab li:first-child a");
btn.addEventListener("click", function(){
var firstTab = bootstrap.Tab.getInstance(element);
console.log(firstTab);
});
});
</script>
</head>
<body>
<div class="m-4">
<ul class="nav nav-tabs" id="myTab">
<li class="nav-item">
<a href="#home" class="nav-link active" data-bs-toggle="tab">Home</a>
</li>
<li class="nav-item">
<a href="#profile" class="nav-link" data-bs-toggle="tab">Profile</a>
</li>
<li class="nav-item">
<a href="#messages" class="nav-link" data-bs-toggle="tab">Messages</a>
</li>
</ul>
<div class="tab-content">
<div class="tab-pane fade show active" id="home">
<h4 class="mt-2">Home tab content</h4>
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</div>
<div class="tab-pane fade" id="profile">
<h4 class="mt-2">Profile tab content</h4>
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</div>
<div class="tab-pane fade" id="messages">
<h4 class="mt-2">Messages tab content</h4>
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</div>
</div>
<hr />
<p><button type="button" class="btn btn-primary" id="myBtn">Get Home Tab Instance</button></p>
</div>
</body>
</html>
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