I was trying to create a navbar component in a .js file so I can use it on multiple pages(not allowed to use react or other libraries for this project). I copied the navbar from bootstrap and pasted it in my navBar.js.
The CSS style worked fine but when I clicked the button the dropdown menu didn't show up.
Could anyone tell me what's the problem and how can I solve it?
another question, I saw some online comments say don't use web components. Should I keep on using it or just pasted the navbar into my index.html(in where the dropdown button works fine)
Here is my navBar.js:
const navTemplate = document.createElement('template');
navTemplate.innerHTML =
`
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</ul>
<form class="d-flex">
<input class="form-control me-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success" type="submit">Search</button>
</form>
</div>
</div>
</nav>
`;
class NavBar extends HTMLElement{
constructor(){
super();
this.attachShadow({mode:'open'});
this.shadowRoot.appendChild(navTemplate.content);
}
connectedCallback(){
}
}
window.customElements.define('nav-bar', NavBar);
And this is my index.html:
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- Bootstrap CSS -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0-beta3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-eOJMYsd53ii+scO/bJGFsiCZc+5NDVN2yr8+0RDqr0Ql0h+rP48ckxlpbzKgwra6" crossorigin="anonymous">
<title>Hello, world!</title>
</head>
<body>
<h1>Hello, world!</h1>
<nav-bar></nav-bar>
<script src='../components/navBar.js'></script>
<!-- Optional JavaScript; choose one of the two! -->
<!-- Option 1: Bootstrap Bundle with Popper -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0-beta3/dist/js/bootstrap.bundle.min.js" integrity="sha384-JEW9xMcG8R+pH31jmWH6WWP0WintQrMb4s7ZOdauHnUtxwoG2vI5DkLtS3qm9Ekf" crossorigin="anonymous"></script>
<!-- Option 2: Separate Popper and Bootstrap JS -->
<!--
<script src="https://cdn.jsdelivr.net/npm/#popperjs/core#2.9.1/dist/umd/popper.min.js" integrity="sha384-SR1sx49pcuLnqZUnnPwx6FCym0wLsk5JZuNx2bPPENzswTNFaQU1RDvt3wT4gWFG" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0-beta3/dist/js/bootstrap.min.js" integrity="sha384-j0CNLUeiqtyaRmlzUHCPZ+Gy5fQu0dQ6eZ/xAww941Ai1SxSY+0EQqNXNE6DZiVc" crossorigin="anonymous"></script>
-->
</body>
</html>
I solved this problem by adding below to carousel.css, Shadow DOM works now!
.dropdown:hover .dropdown-menu {display: block;}
The problem seems to be that the dropdowns aren't initialized correctly. You could do that yourself with new bootstrap.Dropdown(dropdownToggleEl) in connectedCallback,
but that leaves you with work for opening, closing and triggering events on clicks and such. The "culprit" is Shadow DOM.
This is one of those cases where we would suggest to not use Shadow DOM. You are just wraping the layout into a component and even importing the CSS. Unless there is a reason to use Shadow DOM (like custom CSS encapsulation), skip it. It's fine to have components without Shadow DOM alongside others that do.
Or you could alternatively use slots. Replace the li tags in your components template
...
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<slot></slot>
</ul>
...
</div>
...
and declare them with the markup of your component in the index.html:
<nav-bar>
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li><hr class="dropdown-divider"></li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#" tabindex="-1" aria-disabled="true">Disabled</a>
</li>
</nav-bar>
Related
This question already has answers here:
Navbar dropdown (collapse) is not working in Bootstrap 5
(11 answers)
Closed last year.
When I copy the code of the navbar dropdown from the documentation of bootstrap 5 the dropdown doesn't work, if I click on the dropdown the links ("action", "another action", "something else") of this last one don't show up, what should I do?
here is the code :
<head>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
</head>
<nav class="navbar navbar-expand-sm bg-dark navbar-dark">
<!-- Brand -->
<a class="navbar-brand" href="#">Logo</a>
<!-- Links -->
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="#">Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 2</a>
</li>
<!-- Dropdown -->
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown">
Dropdown link
</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>
</ul>
</nav>
<br>
<div class="container">
<h3>Navbar With Dropdown</h3>
<p>This example adds a dropdown menu in the navbar.</p>
</div>
<h1>Navbar</h1>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</ul>
</div>
</div>
</nav>
Change this:
<a class="nav-link dropdown-toggle" href="#" id="navbardrop" data-toggle="dropdown"> Dropdown link </a>
To this:
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">Dropdown Link</a>
Also add this:
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
<head>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
</head>
<nav class="navbar navbar-expand-sm bg-dark navbar-dark">
<!-- Brand -->
<a class="navbar-brand" href="#">Logo</a>
<!-- Links -->
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="#">Link 1</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link 2</a>
</li>
<!-- Dropdown -->
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">Dropdown Link</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>
</ul>
</nav>
<br>
<div class="container">
<h3>Navbar With Dropdown</h3>
<p>This example adds a dropdown menu in the navbar.</p>
</div>
<h1>Navbar</h1>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</ul>
</div>
</div>
</nav>
<!-- JavaScript Bundle with Popper -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.3/dist/js/bootstrap.bundle.min.js" integrity="sha384-ka7Sk0Gln4gmtz2MlQnikT1wXgYsOg+OMhuP+IlRH9sENBO0LRn5q+8nbTov4+1p" crossorigin="anonymous"></script>
Not only do you need the CSS CDN. But you also need the JavaScript CDN's for the dropdown-menu to work.
You can find all documentation and Scripts for Bootstrap 5 Navbars and Bootstrap Dropdowns in the links provided.
<head>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/#popperjs/core#2.9.2/dist/umd/popper.min.js" integrity="sha384-IQsoLXl5PILFhosVNubq5LC7Qb9DXgDA9i+tQ8Zj3iwWAwPtgFTxbJ8NT4GN1R8p" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/js/bootstrap.min.js" integrity="sha384-cVKIPhGWiC2Al4u+LWgxfKTRIcfu0JTxR+EQDz/bgldoEyl4H0zUF0QKbrJ0EcQF" crossorigin="anonymous"></script>
</head>
<h1>Navbar</h1>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container-fluid">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav me-auto mb-2 mb-lg-0">
<li class="nav-item">
<a class="nav-link active" aria-current="page" href="#">Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-bs-toggle="dropdown" aria-expanded="false">
Dropdown
</a>
<ul class="dropdown-menu" aria-labelledby="navbarDropdown">
<li><a class="dropdown-item" href="#">Action</a></li>
<li><a class="dropdown-item" href="#">Another action</a></li>
<li>
<hr class="dropdown-divider">
</li>
<li><a class="dropdown-item" href="#">Something else here</a></li>
</ul>
</ul>
</div>
</div>
</nav>
<div class="container">
<h3>Navbar With Dropdown</h3>
<p>This example adds a dropdown menu in the navbar.</p>
</div>
This question already has answers here:
Bootstrap align navbar items to the right
(24 answers)
Closed 2 years ago.
How can I align my nav items in specific position? I want my brand name to be on left side and my log in button to the right end of the navbar, I am new to bootstrap, help me in solving this thing.
.navbar-brand {
font-weight: bold;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<div class="container">
<ul class="nav">
<li class="nav-item">
<a class="nav-link navbar-brand active" href="#">NotePro</a>
</li>
<li class="nav-item ">
<a class="nav-link" href="#">LogIn</a>
</li>
</ul>
</div>
Result pic
You can use Bootstrap classes d-flex and justify-content-between for the ul element.
More details can be found here
.navbar-brand {
font-weight: bold;
}
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<div class="container">
<ul class="nav d-flex justify-content-between">
<li class="nav-item">
<a class="nav-link navbar-brand active" href="#">NotePro</a>
</li>
<li class="nav-item ">
<a class="nav-link" href="#">LogIn</a>
</li>
</ul>
</div>
added this code to container
.container {
display: flex;
justify-content: space-between;
}
and moved the brand outside ul tag
.navbar-brand {
font-weight: bold;
}
.container {
display: flex;
justify-content: space-between;
}
<!DOCTYPE html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<link rel="stylesheet" href="new.css">
<title>NotePro</title>
</head>
<body>
<div class="container">
<a class="nav-link navbar-brand active" href="#">NotePro</a>
<ul class="nav">
<li class="nav-item ">
<a class="nav-link" href="#">Home</a>
</li>
<li class="nav-item ">
<a class="nav-link" href="#">about us</a>
</li>
<li class="nav-item ">
<a class="nav-link" href="#">LogIn</a>
</li>
</ul>
</div>
</body>
</html>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
<!--here is your code below-->
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav ml-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
Use ml-auto on your UL
So I spent a few hours trying to solve this myself, with the help of other people's posts but had no luck. Allow me to explain my issues first.
My website, www.discoverbugs.org, has a bootstrap navigation menu. It looks fine on the desktop, but on mobile, the drop-down menu disappears when you click on it. What's causing it and how can I fix it?
The second issue is the header image. On mobile, it expands across the entire width of the phone. I'm having this issue with a lot of images on the site. I tried adding max and min widths and it just won't work for me. Can someone please help me edit this? It looks ridiculous.
CSS:
#media screen and (max-width: 420px) { header {
padding: 65px 0 0px; } }
Index.php
<header class="bg-primary text-white">
<div class="container text-center">
<img src="img/header-v6.jpg">
</div>
</header>
Header.php (Navigation menu)
<!-- Navigation -->
<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top" id="mainNav">
<div class="container">
<a class="navbar-brand js-scroll-trigger" href="index.php">Discover Bugs</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="index.php">Home</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="testimonials.php">Testimonials</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="collections.php">Collections</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="form.php">Costs & Booking</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="faq.php">FAQ</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="contact.php">Contact</a>
</li>
</ul>
</div>
</div>
</nav>
Javascript coding I have:
<script src="https://code.jquery.com/jquery-2.1.3.min.js"></script>
<script src="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.1/js/bootstrap.min.js"></script>
The reason is simple: Bootstrap 3 JavaScript is not designed to work with Bootstrap 4.
In other words, for Bootstrap 4 css you also need Bootstrap 4 JavaScript (as well as jQuery 3.2.1 and popper.js).
To fix the header image issue add the img-fluid class to the image like so:
<img class="img-fluid" src="img/header-v6.jpg">
This will make the image responsive.
To fix the first issue, use the css and JavaScript files from the following template (and load them in that order):
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top" id="mainNav">
<div class="container">
<a class="navbar-brand js-scroll-trigger" href="index.php">Discover Bugs</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarResponsive">
<ul class="navbar-nav ml-auto">
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="index.php">Home</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="testimonials.php">Testimonials</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="collections.php">Collections</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="form.php">Costs & Booking</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="faq.php">FAQ</a>
</li>
<li class="nav-item">
<a class="nav-link js-scroll-trigger" href="contact.php">Contact</a>
</li>
</ul>
</div>
</div>
</nav>
<div class="container mt-5 pt-5">
<div class="row">
<div class="col">
<h1>Hello, world!</h1>
</div>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
</body>
</html>
Im using bootstrap 4 and I have the solution to this with bootstrap 3 but appearently with bootsrap 4 is not quite the same. Im stuck and this is the last thing in need in order to complete the project.
this is my navbar (with bootstrap 4):
<nav class="navbar fixed-top navbar-expand-lg navbar-light pink" id="navbar-fixed">
<a class="navbar-brand" href="#"><img src="images/perfect-party-rental-logo.jpg" class="logo"></a>
<!-- Collapse button -->
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupported" aria-controls="navbarSupported"
aria-expanded="false" aria-label="Toggle navigation"></button>
<!-- Collapsible content -->
<div class="collapse navbar-collapse" id="navbarSupported">
<ul class="navbar-nav mr-auto">
<li class="nav-item">
<a class="nav-link active" href="#home"><i class="fa fa-home" aria-hidden="true"></i> Home<span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#inflatables"><i class="fa fa-smile-o" aria-hidden="true"></i> Inflatables</a>
</li>... <!--ETC-->
And this the JS code snipppet from bootstrap 3 :
$(".navbar-collapse ul li a").click(function(event) {
$(".navbar-collapse").collapse('hide');
});
The console keep saying "collapse" is not a function :S
Any clue?
Here's an example of a working navbar in Bootstrap 4 (as you can see it doesn't require any additional JavaScript snippets).
Click the "run code snippet" button and expand to full screen for testing:
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="navbar-nav mr-auto">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Link</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdown">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<div class="dropdown-divider"></div>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline my-2 my-lg-0">
<input class="form-control mr-sm-2" type="search" placeholder="Search" aria-label="Search">
<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
</nav>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
EDIT (adding from my comment):
I checked your codepen and while it was working on my side I saw this in the console: "Uncaught Error: Bootstrap dropdown require Popper.js" which means you aren't loading the popper.js which is required for all things that pop up or drop down in Bootstrap 4. Use the files I included at the bottom of my code snippet and it should work. Also, in your codepen you are loading bootstrap 4.0.0-beta.2. That version is outdated now. Copy and paste ALL stuff from my snippet. That's why I posted it for you.
I'm trying to migrate to the new version of bootstrap and jQuery.
Dropdown in example not working and console outputs error:
> Syntax error, unrecognized expression: #
This is my code:
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar navbar-toggleable-md navbar-light bg-faded">
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand" href="#">Navbar</a>
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Features</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Pricing</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="http://example.com" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown link
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
</ul>
</div>
</nav>
jquery doesn't add class "show" to parent li and doesn't change aria-expanded attribute.
Seems like jquery v3.2.1 not compatible with botstrap v4, but i saw examples which uses this versions.
Please, help me to resolve this problem.
You did not include Popper.js in your markup.
The javascript part of Bootstrap 4 has been built on top of jQuery and Popper.js. As the documentation points it out: "jQuery must come first, then Popper.js, and then our JavaScript plugins". Including Popper.js will eliminate your error.
Additionally, it is also suggested that these <script> tags should go to near to the end of the pages, right before the closing </body> tag.
So your markup should look like this:
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" rel="stylesheet"/>
<nav class="navbar navbar-toggleable-md navbar-light bg-faded">
<button class="navbar-toggler navbar-toggler-right" type="button" data-toggle="collapse" data-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<a class="navbar-brand" href="#">Navbar</a>
<div class="collapse navbar-collapse" id="navbarNavDropdown">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Features</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Pricing</a>
</li>
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="http://example.com" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
Dropdown link
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Action</a>
<a class="dropdown-item" href="#">Another action</a>
<a class="dropdown-item" href="#">Something else here</a>
</div>
</li>
</ul>
</div>
</nav>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js"></script>