While attempting to create a navbar with Bootstrap, I encountered an error. The expected result should be a navbar, but instead it is not displaying correctly. In an effort to understand the nature of the error, I copied the code from W3schools (available at https://www.w3schools.com/bootstrap/bootstrap_navbar.asp) into my Atom editor. Surprisingly, both my code and W3schools' code are not functioning as expected, even though they appear to be correctly written. I am puzzled as to where I may have gone wrong. Could you please offer your assistance?
Here is the code I am using:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" integrity="sha384-alpBpkh1PFOepccYVYDB4do5UnbKysX5WZXm3XxPqe5iKTfUKjNkCk9SaVuEZflJ" crossorigin="anonymous"></script>
<body>
<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>
<nav class=“navbar”>
<nav class="navbar">
<a class="navbar-brand" href=“#”>Something</a>
<ul class="navbar-nav">
<li class="nav-item"><a href="#" class="nav-link">One</li>
</ul>
</nav>
</body>
</html>