Bootstrap mobile menu disappears after toggle - html

I have an Umbraco site that I'm integrating with Bootstrap. I've created a partial view with a navigation menu and everything seems to be working as intended with the exception of the navbar.
So when you click on the button it expands but immediately snaps back up. When you toggle it back, it almost 'pops into existence' and moves back up to close. Here is the entire output of the DOM
<html class="gr__localhost"><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">
<title></title>
<link rel="stylesheet" href="/css/master_styles.css">
<style>#media print {#ghostery-purple-box {display:none !important}}</style></head>
<body data-gr-c-s-loaded="true">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler collapsed" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse" id="navbarNav" aria-expanded="false" style="height: 0px;">
<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">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
</div>
</nav>
<div class="container">
<div class="row">
<div class="col-12">
<h1>Pumpkin's Blog</h1>
<p>Welcome to my blog. I'm always posting things like</p>
<ul>
<li>Photos</li>
<li>Videos</li>
<li>Arts and Crafts</li>
<li>Structural Cardboard Architecture </li>
</ul>
<p>I hope you stick around and comment. </p>
</div>
</div>
</div>
<div id="footer">
Copyright 2018
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<script id="wappalyzer" src="chrome-extension://gppongmhjkpfnbhagpmjfkannfbllamg/js/inject.js"></script></body></html>


You are using bootstrap 3.3.7 js with bootstrap 4 css !
<html class="gr__localhost"><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">
<title>Pumpkin's Blog - Meow</title>
<link rel="stylesheet" href="/css/master_styles.css">
<style>#media print {#ghostery-purple-box {display:none !important}}</style></head>
<body data-gr-c-s-loaded="true">
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler collapsed" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse" id="navbarNav" aria-expanded="false" style="height: 0px;">
<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">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
</div>
</nav>
<div class="container">
<div class="row">
<div class="col-12">
<h1>Pumpkin's Blog</h1>
<p>Hi! I'm Pumpkin. Welcome to my blog. I'm always posting things like</p>
<ul>
<li>Photos</li>
<li>Videos</li>
<li>Arts and Crafts</li>
<li>Structural Cardboard Architecture </li>
</ul>
<p>I hope you stick around and comment. </p>
</div>
</div>
</div>
<div id="footer">
Copyright 2018
</div>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
<script id="wappalyzer" src="chrome-extension://gppongmhjkpfnbhagpmjfkannfbllamg/js/inject.js"></script></body></html>

Related

Why my navbar-toggler show the navbar-item on default

I wonder why the nav-items keeps showing every time I refresh the page in mobile view. I checked the aria-expanded: false but still it does not work.
This is my code:
<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#5.1.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-F3w7mX95PdgyTmZZMECAngseQB83DfGTowi0iMjiWaeVhAn4FJkqJByhZMI3AhiU" crossorigin="anonymous">
<link rel="stylesheet" href="style.css">
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<body>
<header>
<nav class="navbar navbar-expand-lg fixed-top navbar-light">
<div class="container-fluid justify-content-between mx-5 px-4">
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<button
class="navbar-toggler collapse collapsed"
type="button"
data-bs-toggle="collapse"
data-bs-target="#navbarCollapse"
aria-controls="navbarTogglerDemo02"
aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse" id="navbarCollapse">
<ul class="navbar-nav ms-auto">
<li class="navbar-item">
<a class="nav-link active " aria-current="page" href="#">ABOUT</a>
</li>
<li class="navbar-item">
<a class="nav-link active" aria-current="page"href="#">PROJECT</a>
</li class="navbar-item">
<li class="navbar-item">
<a class="nav-link active" aria-current="page" href="#">RESUME</a>
</li>
<li class="navbar-item">
<a class="nav-link active" aria-current="page" href="#">CONTACT</a>
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</ul>
</div>
</div>
</nav>
<!-- <img class="img-fluid" src="img\heading-image.jpg" alt=""> -->
</header>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-/bQdsTh/da6pkI1MST/rWKFNjaCP5gBSY4sEBT38Q/9RBh9AH40zEOg7Hlq2THRZ" crossorigin="anonymous"></script>
<script src="script.js"></script>
</body>
</html>
Please note: I'm still a beginner in bootstrap, html and css.

Remove the class collapse collapsed from button and add collapseto a menu div
here is the full code
<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#5.1.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-F3w7mX95PdgyTmZZMECAngseQB83DfGTowi0iMjiWaeVhAn4FJkqJByhZMI3AhiU" crossorigin="anonymous">
<link rel="stylesheet" href="style.css">
<title>Portfolio</title>
</head>
<body>
<header>
<nav class="navbar navbar-expand-lg fixed-top navbar-light"
<a class="navbar-brand" href="#">HELLO</a>
<button
class="navbar-toggler "
type="button"
data-bs-toggle="collapse"
data-bs-target="#navbarCollapse"
aria-controls="navbarCollapse"
aria-expanded="false"
aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="navbar-collapse collapse " id="navbarCollapse">
<ul class="navbar-nav ms-auto">
<li class="navbar-item">
<a class="nav-link active " aria-current="page" href="#">ABOUT</a>
</li>
<li class="navbar-item">
<a class="nav-link active" aria-current="page"href="#">PROJECT</a>
<li class="navbar-item">
<li class="navbar-item">
<a class="nav-link active" aria-current="page" href="#">RESUME</a>
</li>
<li class="navbar-item">
<a class="nav-link active" aria-current="page" href="#">CONTACT</a>
</li>
</ul>
</div>
</nav>
<!-- <img class="img-fluid" src="img\heading-image.jpg" alt=""> -->
</header>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.1.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-/bQdsTh/da6pkI1MST/rWKFNjaCP5gBSY4sEBT38Q/9RBh9AH40zEOg7Hlq2THRZ" crossorigin="anonymous"></script>
<script src="script.js"></script>
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Bootstrap 5 Hamburger Icon Doesn't Show (Trouble with navbar-toggler-icon) [duplicate]

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 nav hamburger button not appearing

I am trying to do the basic bootstrap navbar hamburger button on a collapsed screen. I am first just trying to get the button to be displayed but currently it won't display to the screen.
<nav class="navbar bg-light navbar-expand-sm">
<h1 class="narbar-brand">User</h1>
<button class="navbar-toggler">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse"">
<ul class="navbar-nav ml-auto">
<li class="nav-item">
Home
</li>
<li class="nav-item">
About
</li>
<li class="nav-item">
Projects
</li>
</ul>
</div>
</nav>

There is nothing wrong with your html.
However, did you add js file (from bootstrap) to your html?

check this
<!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/4.5.2/css/bootstrap.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/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/4.5.2/js/bootstrap.min.js"></script>
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<a class="navbar-brand" href="#">User</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" 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 active">
<a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Projects</a>
</li>
</ul>
</div>
</nav>
</body>
</html>

Navbar toggler not working Bootstrap 4

Hey so I am trying to practice Bootstrap 4 so I am remaking my website out of it. I am trying to add a responsive navigation bar but the toggler does not seem to be working, how would I fix this? Thanks!
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, inital-scale=1">
<title>Christian | First Website</title>
<link rel="stylesheet" href="assets/css/bootstrap.css">
<link rel="stylesheet" href="assets/css/style.css">
<link rel="alternative stylesheet" href="/assets/css/font-awesome.min.css">
</head>
<body>
<!-- Navigation -->
<nav class="navbar navbar-light navbar-toggleable-md">
<a class="navbar-brand" href="#"><img src="assets/images/logo.png" height="100px"></a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav" aria-controls="navbarNav" 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 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="#">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Work</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Contact</a>
</li>
</ul>
</div>
</nav>
</body>
</html>

read http://getbootstrap.com/docs/4.0/getting-started/introduction/
you don't have all the necessary bootstrap files linked at the bottom of the page before the closng
<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/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script>

My nav code in Bootstrap doesn't work

The code at the and of this message I use in WebStorm. Have you any idea what I am doing wrong? Maybe some CDN errors or incorrect in the code?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>DateLab</title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/css/bootstrap.min.css">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta/js/bootstrap.min.js"></script>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.11.0/umd/popper.min.js"></script>
</head>
<body>
<nav class="navbar navbar-inverse">
<div class="container-fluid">
<div class="navbar-header">
<a class="navbar-brand" href="#">DateLab</a>
</div>
<div>
<ul class="navbar navbar-nav">
<li class="active">Home</li>
<li>Hoe werkt het</li>
<li>Wie zijn wij</li>
<li>FAQ</li>
<li>Contact</li>
</ul>
</div>
</div>
</nav>
</body>
</html>
Situation output now:
Expected output:

I just changed you CDN links for sources. because you were using the Beta version of bootstrap. Also, there was some issue with HTML code I just replaced it.
check these useful links
https://v4-alpha.getbootstrap.com/
https://v4-alpha.getbootstrap.com/components/navbar/
Just be careful when you use any library and framework. try to use the stable versions. Also always include scripts at end of the code. because your code was generating some js errors.
<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="#">Hoe werkt het</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Wie zijn wij</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">FAQ</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Contact</a>
</li>
</ul>
</div>
</nav>
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"></script>
<script src="https://npmcdn.com/tether#1.2.4/dist/js/tether.min.js"></script>
<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">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-alpha.6/js/bootstrap.min.js" integrity="sha384-vBWWzlZJ8ea9aCX4pEW3rVHjgjt7zpkNpZk+02D9phzyeVkE+jo0ieGizqPLForn" crossorigin="anonymous"></script>