Bootstrap5-Toggler Button - javascript

I have used the toggler button using bootstrap 5 in the navbar but it is not displaying the navbar items that are collapsed on minimizing browser screen. Why is it not working properly? and how to resolve it?
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" >
<title>
bootstrap installation
</title>
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.2.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-Zenh87qX5JnK2Jl0vWa8Ck2rdkQ2Bzep5IDxbcnCeuOxjzrPF/et3URy9Bv1WTRi" crossorigin="anonymous">
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
<a class="navbar-brand" href="">tindog</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarTogglerDemo02" aria-controls="navbarTogglerDemo02" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarTogglerDemo02">
<ul class="navbar-nav m-lg-auto">
<li class="nav-item">
<a class="nav-link" href="">Contact</a>
</li>
<li class="nav-item">
<a class="nav-link" href="">Pricing</a>
</li>
<li class="nav-item">
<a class="nav-link" href="">Download</a>
</li>
</ul>
</div>
</nav>
</body>
</html>


The code you provided works fine for me. Are you sure you included the Bootstrap JS file?


You are missing a bootstrap JS CDN link, Add this inside your head element
<head>
...
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.2.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-OERcA2EqjJCMA+/3y+gxIOqMEjwtxJY7qPCqsdltbNJuaOe923+mo//f6V8Qbsw3" crossorigin="anonymous"></script>
</head>

Related

My toggle navbar is not working. Can someone help me?

my toggle navbar is not working, can anyone tell me why and how to fix it? I looked at it online but Im still not sure what is the issue in mine.
<!DOCTYPE html>
<html lang="en">
{% load static %}
<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://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script><style>
<title>homepage</title>
</head>
<body>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#MyMenu" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="MyMenu">
<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="/sentiment/type">Input Text</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/sentiment/import">Import Tweets</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/feedback">Feedback</a>
</li>
</ul>
</div>
<span class="hello-msg"><strong>Hello, {{request.user}}</strong></span>
<button class="btn btn-danger navbar-btn" ><h7 class="white-text" color=white;>Logout</h7></button>
</nav>
<!-- END nav -->
<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 navbar from here: https://getbootstrap.com/docs/4.0/components/navbar/

Your syntax is wrong. You have a double body label and double head label.

you have some syntax errors, just simply copy this and replace it with your code:
<!DOCTYPE html>
<html lang="en">
{% load static %}
<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://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<title>homepage</title>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#MyMenu" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="MyMenu">
<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="/sentiment/type">Input Text</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/sentiment/import">Import Tweets</a>
</li>
<li class="nav-item">
<a class="nav-link" href="/feedback">Feedback</a>
</li>
</ul>
</div>
<span class="hello-msg"><strong>Hello, {{request.user}}</strong></span>
<button class="btn btn-danger navbar-btn" ><h7 class="white-text" color=white;>Logout</h7></button>
</nav>
<!-- END nav -->
<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>

Bootstrap toggle button is not working on mobile screen?

I am using Bootstrap but don't know why the toggle button is not working I have searched it on the internet but didn't get the right answer there are many similar questions on the StackOverflow but they are not also solving me problem Like Bootstrap toggle button is not working and bootstrap navbar toggle button is not working
So please can anyone tell me why it is happening.
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- Bootstrap CSS -->
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet"
integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<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://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
crossorigin="anonymous"></script>
<link rel="stylesheet" href="style.css">
<title>TutorInet</title>
</head>
<nav class="navbar navbar-expand-lg navbar-light ">
<div class="container-fluid">
<a style="font-weight: 500;">
<h3 style="color:#4A4A4A;text-transform: uppercase;margin-top:8px;"> Tutor<span
style="color:#F97C44;">I</span>net</h3>
</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="navbarNav">
<ul class="navbar-nav">
<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="https://www.tutorinet.com/blog.php">Blog</a>
</li>
<li class="nav-item">
<a class="nav-link" href="https://www.tutorinet.com/contact.php">Contact</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">How it works</a>
</li>
<li style="color:#1EB909;font-weight: 600;" class="nav-item">
<a style="color:#1EB909;font-weight: 600;" class="nav-link" href="https://www.tutorinet.com/login.php">Log
in</a>
</li>
<button style="color:white;background: #1EB909;border: none;" type="button" class="btn btn-primary"><a
style="color:white;background: #1EB909;" href="https://www.tutorinet.com/signup.php?type=1">Sign
Up</a></button>
</ul>
</div>
</div>
</nav>

You need to remove the bootstrap script you have and include bootstrap.bundle.min.js
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.0/dist/js/bootstrap.bundle.min.js" integrity="sha384-U1DAWAznBHeqEIlVSCgzq+c9gqGAJn5c/t99JyeKa9xxaYpSvHU5awsuZVVFIhvj" crossorigin="anonymous"></script>
also the id value in your div should be the same with data-bs-target value in your button
<div class="collapse navbar-collapse" id="navbarSupportedContent">

bootstrap 5 navbar toggle button not working [duplicate]

This question already has answers here:
Bootstrap navbar: nothing is displayed on smaller devices
(1 answer)
bootstrap 4 nav doesn't display hamburger on resize
(2 answers)
Closed 1 year ago.
I have html code, when I resize the browser screen I have a problem that the toggle button is not displayed (it is transparent) when I click on it the navigation bar items are not showing at allScreenshot of my web
<html>
<head>
<title>
profile
</title>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- Bootstrap CSS-->
<link rel="stylesheet" href="../css/bootstrap/bootstrap.css">
<!-- w3 CSS-->
<link rel="stylesheet" href="../css/W3.css">
<!-- profile CSS-->
<link rel="stylesheet" href="../css/accueil.css">
<!-- flaticon CSS-->
<link rel="stylesheet" href="../icons/font/flaticon.css">
<!--Scripts-->
<!-- JQuery script-->
<script src="../js/jQuery.js"></script>
<!-- Bootstrap script-->
<script src="../js/bootstrap/bootstrap.bundle.min.js"></script>
</head>
<body>
<header>
<nav class="navbar navbar-expand-md fixed-top">
<div class="container-fluid">
<a class="navbar-brand" href="accueil.html">
<h4>LOGO</h4>
</a>
<!--Collapse button -->
<button type="button" class="navbar-toggler"
data-bs-toggle="collapse" data-bs-target="#coll_target"
aria-controls="coll_target" aria-expanded="false"
aria-label="Toggle Navbar" >
<span class="navbar-toggler-icon" ></span>
</button>
<!--Collapse Div -->
<div class="collapse navbar-collapse" id="coll_target">
<div class="mx-auto"></div>
<ul class="navbar-nav ml-auto">
<li class="nav-item"><a class="nav-link"><span><i class="flaticon-ringing" style="color: white;"></i></span></a></li>
<li class="nav-item"><a class="nav-link"><span><i class="flaticon-email" style="color: white;"></i></span></a></li>
<li class="nav-item"><a class="nav-link"><span><i style="color: white;" class="flaticon-down-arrow"></i></span></a></li>
<li class="nav-item"><a class="nav-link"><span><i style="color: white;" class="flaticon-translation"></i></span></a></li>
<li class="nav-item"><a class="nav-link"><span><i class="flaticon-settings" style="color: white;"></i></span></a></li>
</ul>
</div>
</div>
</nav>
</header>
</body>
</html>

You should read the documentation here https://getbootstrap.com/docs/5.0/getting-started/introduction/
I assume you have basic knowledge in CSS and HTML , In order to use Bootstrap, you first need to integrate it into your development environment correctly, Either by loading it remotely or by download and use it locally;
Long story short your pages should look like this:
<!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#5.0.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous">
<title>Hello, world!</title>
</head>
<body>
<!---include navbar components to demonstrate what you need----->
<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>
<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>
</body>
</html>
Bootstrap has a lot of responsive classes that suit your need

Navbar dropdown (collapse) is not working in Bootstrap 5

I am facing a issue when trying to create a responsive menu or dropdown button with Bootstrap 5.Everything seems ok.The navigation icon & dropdown icon apears.But its not working.When I clicked the nav icon or dropdown button,no dropdown menu apears.
I want to specially mention that I also included the jquery file. But it didn't work. Can anyone please tell me what is happening here?
One last thing,I faced severel issues with some others bootstrap classes like mr-auto,ml-auto etc.Is it any bug or new classes come with bootstrap 5 for this kind of job?
Here is my code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Bootstrap</title>
<link
href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0-beta1/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1"
crossorigin="anonymous"
/>
</head>
<body>
<nav class="navbar navbar-dark bg-dark navbar-expand-md">
DemoTech
<button
class="navbar-toggler"
data-toggle="collapse"
data-target="#navbar"
>
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse" id="navbar" navbar>
<ul class="navbar-nav">
<li class="nav-item">Home</li>
<li class="nav-item">About</li>
<li class="nav-item">Contact</li>
</ul>
</div>
</nav>
<script
src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0-beta1/dist/js/bootstrap.bundle.min.js"
integrity="sha384-ygbV9kiqUc6oa4msXn9868pTtWMgiQaeYH7/t7LECLbyPA2x65Kgf80OJFdroafW"
crossorigin="anonymous"
></script>
</body>
</html>

The data-* attributes used in Bootstrap 4 have been replaced with data-bs-* in Bootstrap 5
<button class="navbar-toggler" data-bs-toggle="collapse" data-bs-target="#navbar">
<span class="navbar-toggler-icon"></span>
</button>
Demo
As explained in the docs, data attributes for all JavaScript plugins are now namespaced to help distinguish Bootstrap functionality from third parties and your own code. This mean any javascript components (Collapse, Navbar, Carousel, Dropdown, Tabs, Modal, etc..) will only work using data-bs-... attributes.
Bootstrap 5 is a major update with breaking changes. Also see here that ml-auto/mr-auto have changed to ms-auto/me-auto.

Make sure you have added jsDeliver CDN link from bootstrap homepage for Javascript and CSS both in the head tag.
**<!-- CSS only -->**
<link href="https://cdn.jsdelivr.net/npm/bootstrap#5.1.2/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-uWxY/CJNBR+1zjPWmfnSnVxwRheevXITnMqoEIeG1LJrdI0GlVs/9cVSyPYXdcSF" crossorigin="anonymous">
**<!-- JavaScript Bundle with Popper -->**
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-kQtW33rZJAHjgefvhyyzcGF3C5TFyBQBA13V1RKPf4uH+bwyzQxZ6CmMZHmNBEfJ" crossorigin="anonymous"></script>

<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="true" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
You have used data-toggle this attribute used in old Bootstrap versions while in Bootstrap 5 you need to use this attribute data-bs-toggle and one other most important things is you have make (aria-expanded="true").

me too is facing same problem first I changed data-target to data-bs-target and data-toggle to data-bs-toggle second I have included bootstrap.bundle.min.js and cdn link of plain bootstrap.min.js adding two same script cause problem
`
<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 id="navbarSupportedContent" class="collapse navbar-collapse" >
<ul class="navbar-nav me-auto">
<li class="nav-item active">
<a class="nav-link" href=#Url.Action("Index","Home")>Home</a>
</li>
<li class="nav-item">
<a class="nav-link" href=#Url.Action("AboutUs","Home")>About Us</a>
</li>
<li class="nav-item">
<a class="nav-link" href=#Url.Action("OurTeam","Home")>Our Team</a>
</li>
#*<li class="nav-item">
<a class="nav-link" href=#Url.Action("Blog","Home")>Blog</a>
</li>*#
<li class="nav-item">
<a class="nav-link" href=#Url.Action("ContactUs","Home")>Contact Us</a>
</li>
#*<li class="nav-item">
<a class="nav-link" href=#Url.Action("LoanCalculator","Home")>Loan Calculator</a>
</li>*#
</ul>
</div>
</nav>`

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>Bootstrap</title>
<link
href="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0-beta1/dist/css/bootstrap.min.css"
rel="stylesheet"
integrity="sha384-giJF6kkoqNQ00vy+HMDP7azOuL0xtbfIcaT9wjKHr8RbDVddVHyTfAAsrekwKmP1"
crossorigin="anonymous"
/>
</head>
<body>
<nav class="navbar navbar-dark bg-dark navbar-expand-md">
DemoTech
<button
class="navbar-toggler"
**data-bs-toggle="collapse"
data-bs-target="#navbar"**
>
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse" id="navbar" navbar>
<ul class="navbar-nav">
<li class="nav-item">Home</li>
<li class="nav-item">About</li>
<li class="nav-item">Contact</li>
</ul>
</div>
</nav>
<script
src="https://cdn.jsdelivr.net/npm/bootstrap#5.0.0-beta1/dist/js/bootstrap.bundle.min.js"
integrity="sha384-ygbV9kiqUc6oa4msXn9868pTtWMgiQaeYH7/t7LECLbyPA2x65Kgf80OJFdroafW"
crossorigin="anonymous"
></script>
</body>
</html>

For me just solve this issue by adding -bs to data-target and data-toggle
<button
className="navbar-toggler"
type="button"
data-bs-toggle="collapse"
data-bs-target="#navbarNavDropdown"
aria-controls="navbarNavDropdown"
aria-expanded="false"
aria-label="Toggle navigation"
>

Besides including the JS link in the body the buttons and div have same aria-control/data-bs-target and ID :
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" aria-controls='navbarSupportedContent'
<div class="collapse navbar-collapse" id="navbarSupportedContent">

<!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://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
<title>Hello, world!</title>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar w/ text</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarText" aria-controls="navbarText" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarText">
<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="#">Features</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Pricing</a>
</li>
</ul>
<span class="navbar-text">
Navbar text with an inline element
</span>
</div>
</nav>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js" integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
</body>
</html>

You use "data-toggle" this attribute used in Bootstrap 3 you need to use this attribute "data-bs-toggle"

I had issues with dropdown menus in the current site that I'm editing. Tonight I finally have a nav menu with dropdowns that allows the dropdown menu to close after clicking on links! I styled it to look whoo hoo via a different template. However, when I add the menu to the site I'm editing, the mobile toggle menu Isn;t opening. How can I fix that? Thanks! :--)
<!-- ======= Header ======= -->
<header id="header" class="fixed-top d-flex align-items-center">
<div class="container">
<div class="header-container d-flex align-items-center justify-content-between">
<div class="logo">
<!--<h1 class="text-light">LOGO TEXT</h1>-->
<!-- Uncomment below if you prefer to use an image logo -->
<a class="scrollto" href="#intro"><img src="img/UCF-Logo.svg" height="50" alt="U C F" title="U C F" class="img-fluid top-logo wow bounceOut"></a>
<!-- <img src="assets/img/logo.png" alt="" class="img-fluid">-->
</div>
<nav id="navbar" class="navbar">
<ul>
<!--<li><a class="nav-link scrollto active" href="#hero">Home</a></li>
<li><a class="nav-link scrollto" href="#about">About</a></li>
<li><a class="nav-link scrollto" href="#services">Services</a></li>
<li><a class="nav-link scrollto " href="#portfolio">Portfolio</a></li>
<li><a class="nav-link scrollto" href="#team">Team</a></li>-->
<li class="dropdown"><span>About <i class="fas fa-arrow-down"></i></span>
<ul>
<li><a class="scrollto" href="#about">About</a></li>
<li><a class="scrollto" href="#more-about">Detailed Info</a></li>
<li><a class="scrollto" href="#about">DropDown 03</a></li>
<li><a class="scrollto" href="#about">DropDown 04</a></li>
<li><a class="scrollto" href="#about">DropDown 05</a></li>
</ul>
</li>
<li class="dropdown"><span>DropDown <i class="fas fa-arrow-down"></i></span>
<ul>
<li><a class="scrollto" href="#about">DropDown 06</a></li>
<li><a class="scrollto" href="#about">DropDown 07</a></li>
<li><a class="scrollto" href="#about">DropDown 08</a></li>
<li><a class="scrollto" href="#about">DropDown 09</a></li>
<li><a class="scrollto" href="#about">DropDown 10</a></li>
</ul>
</li>
<li class="dropdown"><span>DropDown <i class="fas fa-arrow-down"></i></span>
<ul>
<li><a class="scrollto" href="#contact">Contact Info</a></li>
<li><a class="scrollto" href="#about">DropDown 12</a></li>
<li><a class="scrollto" href="#about">DropDown 13</a></li>
<li><a class="scrollto" href="#about">DropDown 14</a></li>
<li><a class="scrollto" href="#about">DropDown 15</a></li>
</ul>
</li>
<!--<li>Drop Down 2</li>
<li>Drop Down 3</li>
<li>Drop Down 4</li>
</ul>
</li>-->
<!--<li><a class="nav-link scrollto" href="#contact">Contact</a></li>-->
<li><a class="register scrollto" href="#about">REGISTER! <i class="fas fa-smile-beam fa-x2"></i></a></li>
</ul>
<i class="fas fa-bars mobile-nav-toggle"></i>
</nav><!-- .navbar -->
</div><!-- End Header Container -->
</div>
</header><!-- End Header -->

here the 'data-bs-target' id
<button class="navbar-toggler" data-bs-toggle="collapse" data-bs-target="#kickMyAss">
and div id must be identical
<div id="kickMyAss" class="collapse navbar-collapse">

Bootstrap Navbar Dropdown Not Working in Browser, Codepen okay

I have a document with a navbar whose dropdown menu just won't work. It works in my codepen, but not through my text-editor(Sublime). I have searched all over for a solution, so here I am.
I have tried:
-Bootstrap Docs
-Making sure jQuery script is before Boostrap script
-Triple checking my closures
-Lots of searching Google and StackOverflow.
-Adding this code:
<script>
$("document").ready(function() {
$(".dropdown").dropdown();
});
</script>
Here's what I believe to be the relevant code. Any insights to my mistake will be greatly appreciated.
<!DOCTYPE html>
<html lang = "en">
<head>
<meta charset = "UTF-8">
<meta http-equiv = "X-UA-Compatible" content = "IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head
content must come *after* these tags -->
<title>JakobiArtWorks</title>
<link href = "https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.0.0-alpha.6/css/bootstrap.min.css" rel = "stylesheet">
<link href = "https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel = "stylesheet">
<link href = "https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.6.0/slick.css" rel = "stylesheet">
<link href = "https://fonts.googleapis.com/css?family=Russo+One" rel = "stylesheet">
<link href = "style.css" rel = "stylesheet">
</head>
<body>
<header>
<!--nav-->
<nav class="navbar navbar-toggleable-md navbar-light bg-faded" id = "top">
<button class="navbar-toggler navbar-toggler-right" 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>
<a class="navbar-brand" href="#">JAW</a>
<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="#art">Art</a>
<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">
Material
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#wire">Wire</a>
<a class="dropdown-item" href="#clay">Clay</a>
<a class="dropdown-item" href="#plywood">Plywood</a>
<a class = "dropdown-item" href = "#concrete">Concrete</a>
</div>
</li>
</li>
</ul>
<ul class = "nav navbar-nav navbar-right">
<li>Contact</li>
</ul>
</div>
</nav>
<!--end nav-->
</header>
...
<script src = "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<!-- Latest compiled and minified JavaScript -->
<script src = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script src = "https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.6.0/slick.js"></script>
<script src = "script.js"></script>
</body>
</html>

The problem is that you use two different versions of bootstrap of bootstrap. In your header you use the CSS of Bootstrap 4.0.0-alpha.6 and on the end of your body you have the JavaScript of version 3.3.7. You can either use one or the other but not both together.
This code works for me:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<!-- The above 3 meta tags *must* come first in the head; any other head
content must come *after* these tags -->
<title>JakobiArtWorks</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/css/bootstrap.min.css"
integrity="sha384-rwoIResjU2yc3z8GV/NPeZWAv56rSmLldC3R/AZzGRnGxQQKnKkoFVhFQhNUwEyJ" crossorigin="anonymous">
<link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
<link href="https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.6.0/slick.css" rel="stylesheet">
<link href="https://fonts.googleapis.com/css?family=Russo+One" rel="stylesheet">
<link href="style.css" rel="stylesheet">
</head>
<body>
<header>
<!--nav-->
<nav class="navbar navbar-toggleable-md navbar-light bg-faded" id="top">
<button class="navbar-toggler navbar-toggler-right" 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>
<a class="navbar-brand" href="#">JAW</a>
<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="#art">Art</a>
<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">
Material
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#wire">Wire</a>
<a class="dropdown-item" href="#clay">Clay</a>
<a class="dropdown-item" href="#plywood">Plywood</a>
<a class="dropdown-item" href="#concrete">Concrete</a>
</div>
</li>
</ul>
<ul class="nav navbar-nav navbar-right">
<li>Contact</li>
</ul>
</div>
</nav>
<!--end nav-->
</header>
...
<script src="https://code.jquery.com/jquery-3.1.1.slim.min.js"
integrity="sha384-A7FZj7v+d/sdmMqp/nOQwliLvUsJfDHW+k9Omg/a/EheAdgtzNs3hpfag6Ed950n"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/tether/1.4.0/js/tether.min.js"
integrity="sha384-DztdAPBWPRXSA/3eYEEUWrWCy7G5KFbe8fFjk5JAIxUYHKkDx6Qin1DkWx51bBrb"
crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js"
integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn"
crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/slick-carousel/1.6.0/slick.js"></script>
<script src="script.js"></script>
</body>
</html>

well you have extra </li> after <a class = "dropdown-item" href = "#concrete">Concrete</a> reomove it. and in your script dropdown-toggle should be pointed
WRONG
$("document").ready(function() {
$(".dropdown").dropdown();
});
remove "" in document and .dropdown it should be written like this
CORRECT
$(document).ready(function() {
$(".dropdown-toggle").dropdown();
});
Demo With your code

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