Disabling nodejs files in vsCode to client side js files - javascript

I am having tremendous difficulty coding with java script. My Java script file is using nodejs, which means i cant perform any DOMS. For examples this code here:
var form = document.getElementsByClassName('nav-item');
console.log(form.length);
There are 4 nav-items which are displayed in the developer tools on the browser but the length is 0, where it should be 4. Why is this happening? Is there a way to disable nodejs or switch ? I know nodejs is server side, so how do i disable it or create another js file that is in client side?
HTML CODE:
<!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/4.4.1/css/bootstrap.min.css">
<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.7.0/css/all.css">
<link rel="stylesheet" href="bootstrap.min.css">
<link rel="stylesheet" href="boot.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/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/4.4.1/js/bootstrap.min.js"></script>
<script src="boot.js"></script>
</head>
<body>
<div class="container-fluid">
<nav class="navbar navbar-expand-md bg-dark navbar-dark">
<a class="navbar-brand" href="#">Navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#collapsibleNavbar">
<span class="navbar-toggler-icon"></span>
</button>
<!-- Creates the navbar links-->
<div class="collapse navbar-collapse" id="collapsibleNavbar">
<ul class="navbar-nav">
<li class="nav-item active">
<a class="nav-link" href="#">Subjects</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">About</a>
</li>
<li class="nav-item">
<a class="nav-link" href="#">Contact</a>
</li>
<li class="nav-item">
<a class="nav-link float-right" href="#">Sign Up</a>
</li>
</ul>
</div>
</nav>
<br>
<form>
<div class="form-group">
<label for="exampleInputEmail1">Email address</label>
<input type="email" class="form-control" id="exampleInputEmail1" placeholder="Email">
</div>
<div class="form-group">
<label for="exampleInputPassword1">Password</label>
<input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
</div>
<div class="checkbox">
<label>
<input type="checkbox">Remember me
</label>
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
</body>
</html>
BOOT.JS FILE:
var form = document.getElementsByClassName('nav-item');
console.log(form.length);


Try loading your script at the end of the file instead of the header. The DOM has not loaded when you run the script. Either that or put it inside this event:
document.addEventListener("DOMContentLoaded", function(event) {
var form = document.getElementsByClassName('nav-item');
console.log(form.length);
});

Related

I cant figure out firebase authentication [closed]

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Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
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I am trying to build my own workout tracking tool. I have built my front end with bootstrap studio. I am figuring out how to use firebase and its authentication tool. Its working but only in a plain html file. The one I created with BSStudio doesnt want to work. I hope somebody can help me out.
First I used a js file for every page, but I handle it now from just one file.
Its called backend.js. :
firebase.auth().onAuthStateChanged(function (user) {
if (user) {
// User is signed in.
alert("logged in")
document.getElementById("user_div").style.display = "block";
document.getElementById("login_div").style.display = "none";
document.getElementById("logoutsucceed").style.display = "none";
document.getElementById("logoutfailed").style.display = "block";
var user = firebase.auth().currentUser;
if (user != null) {
var email_id = user.email;
document.getElementById("user_para").innerHTML = "Welcome User : " + email_id;
}
} else {
// No user is signed in.
alert("logged out")
document.getElementById("user_div").style.display = "none";
document.getElementById("login_div").style.display = "block";
document.getElementById("logoutsucceed").style.display = "block";
document.getElementById("logoutfailed").style.display = "none";
}
});
document.getElementById('btlogin').onclick = function () {
login();
};
document.getElementById('btlogout').onclick = function () {
logout();
};
function login() {
alert("try to login")
var userEmail = document.getElementById("email_field").value;
var userPass = document.getElementById("password_field").value;
firebase.auth().signInWithEmailAndPassword(userEmail, userPass).catch(function (error) {
// Handle Errors here.
var errorCode = error.code;
var errorMessage = error.message;
alert("Error : " + errorMessage);
// ...
});
}
function logout() {
alert("logged out")
firebase.auth().signOut();
href = "index.html"
}
function register() {
alert("register command")
}
Here is my working page:
<html>
<head>
<title>Firebase Login</title>
<link href="https://fonts.googleapis.com/css?family=Nunito:400,600,700" rel="stylesheet">
<link rel="stylesheet" href="style.css" />
</head>
<body>
<div id="login_div" class="main-div">
<h3>Firebase Web login Example</h3>
<input type="email" placeholder="Email..." id="email_field" />
<input type="password" placeholder="Password..." id="password_field" />
<button id="btlogin">Login to Account</button>
</div>
<button onclick="window.location.href = 'homepage.html';">Hier klicken</button>
<div>
</div>
<div id="user_div" class="loggedin-div">
<h3>Welcome User</h3>
<p id="user_para">Welcome to Firebase web login Example. You're currently logged in.</p>
<button id="btlogout">Logout</button>
</div>
<script src="https://www.gstatic.com/firebasejs/4.8.1/firebase.js"></script>
<script>
// Initialize Firebase
var config = {
[config from firebase]
};
firebase.initializeApp(config);
</script>
<script src="assets/js/backend.js">
</script>
</body>
</html>
And my bsstudio created page (which doesnt work). I have 100% put the same firebase config, so thats not the problem:
<!DOCTYPE html>
<html>
<head>
login()
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no">
<title>Login - FitBy</title>
<meta name="description" content="A gym website by Kevin Kumar. Providing various gym tools from workout tracking to informative blogs.">
<link rel="stylesheet" href="assets/bootstrap/css/bootstrap.min.css">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Montserrat:400,400i,700,700i,600,600i">
<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Actor">
<link rel="stylesheet" href="assets/fonts/fontawesome-all.min.css">
<link rel="stylesheet" href="assets/fonts/ionicons.min.css">
<link rel="stylesheet" href="assets/fonts/simple-line-icons.min.css">
<link rel="stylesheet" href="assets/css/beautiful-danger-alert.css">
<link rel="stylesheet" href="assets/css/beautiful-success-alert.css">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/baguettebox.js/1.10.0/baguetteBox.min.css">
<link rel="stylesheet" href="assets/css/Profile-Card.css">
<link rel="stylesheet" href="assets/css/smoothproducts.css">
<link rel="stylesheet" href="assets/css/untitled.css">
</head>
<body>
<nav class="navbar navbar-light navbar-expand-lg fixed-top bg-white clean-navbar" style="margin-bottom: 0;">
<div class="container"><button data-toggle="collapse" class="navbar-toggler" data-target="#navcol-1" style="float: right;"><span class="sr-only">Toggle navigation</span><span class="navbar-toggler-icon"></span></button>
<div class="text-left align-self-start order-1" style="position: absolute;float: left;margin-bottom: 0px;"></div>
<div class="collapse navbar-collapse" id="navcol-1"><span class="navbar-text" style="min-width: 220px;"><a class="navbar-brand logo" href="#" style="margin-right: 0;">FitBy</a><a class="navbar-brand logo" href="#"
style="transform: scale(-1,1);margin-right: 0;margin-left: 0px;padding: 0;font-family: Actor, sans-serif;font-size: 30px;">K</a><a class="navbar-brand logo" href="#"
style="margin-right: 0;margin-left: -2px;font-family: Actor, sans-serif;font-size: 30px;">K</a><a class="navbar-brand logo" href="#" style="margin-left: 2;padding: 0;margin-right: 0;">nowledge</a></span>
<ul class="nav navbar-nav ml-auto">
<li class="nav-item" role="presentation"><a class="nav-link" href="index.html">Home</a></li>
<li class="nav-item" role="presentation"><a class="nav-link" href="/features.html">Features</a></li>
<li class="nav-item" role="presentation"><a class="nav-link" href="/forum.html">Forum</a></li>
<li class="nav-item" role="presentation"><a class="nav-link" href="/blog-post-list.html">Blog</a></li>
<li class="nav-item" role="presentation"><a class="nav-link" href="/about-us.html">About Us</a></li>
<li class="nav-item" role="presentation"><a class="nav-link" href="/contact-us.html">Contact Us</a></li>
<li class="nav-item dropdown show"><a class="dropdown-toggle nav-link" data-toggle="dropdown" aria-expanded="true" href="#">my account</a>
<div class="dropdown-menu show" role="menu">
<div class="col"><img id="userprofileimg" src="assets/img/scenery/image1.jpg" style="margin: 0;padding: 0px;background-position: 100%;margin-left: auto;margin-right: auto;"></div>
<h6 class="dropdown-header" role="presentation">Overview</h6><a class="dropdown-item" role="presentation" href="/userpage.html">My Information</a><a class="dropdown-item #lblogout" role="presentation"
href="/login.html">Login</a><a class="dropdown-item" role="presentation" id="lbregister" href="registration.html">Register</a><a class="dropdown-item" role="presentation" id="lbLogout" href="logout.html">Logout</a>
<h6 class="dropdown-header" role="presentation">Tracking</h6><a class="dropdown-item" role="presentation" href="tracking-dashboard.html">Tracking Dashboard</a><a class="dropdown-item" role="presentation" href="#">Create
Workout</a><a class="dropdown-item" role="presentation" href="#">Excercises</a>
<h6 class="dropdown-header" role="presentation">Blog</h6><a class="dropdown-item" role="presentation" href="#">My Posts</a>
</div>
</li>
</ul>
</div>
</div>
</nav>
<main class="page login-page">
<section class="clean-block clean-form dark">
<div class="container">
<div class="block-heading">
<h2 class="text-info">Log In</h2>
<p>Welcome!</p>
</div>
<div id="login_div">
<form>
<div class="form-group"><label for="email">Email</label><input class="form-control item" type="email" id="email"></div>
<div class="form-group"><label for="password">Password</label><input class="form-control" type="password" id="password"></div>
<div class="form-group">
<div class="form-check"><input class="form-check-input" type="checkbox" id="checkbox"><label class="form-check-label" for="checkbox">Remember me</label></div>
</div><button class="btn btn-primary btn-block" id="btlogin" type="button">Log In</button>
</form>
</div>
</div>
<div id="user_div">
<div class="alert alert-success beautiful" role="alert" id="succeed"><Strong>Success!</Strong> You are logged in! To add more details just open your Overview (link)</div>
</div>
</section>
</main>
<footer class="page-footer dark">
<div class="container">
<div class="row">
<div class="col-sm-3">
<h5>Get started</h5>
<ul>
<li>Home</li>
<li>Sign up</li>
</ul>
</div>
<div class="col-sm-3">
<h5>About us</h5>
<ul>
<li>Company Information</li>
<li>Contact us</li>
<li>Reviews</li>
</ul>
</div>
<div class="col-sm-3">
<h5>Support</h5>
<ul>
<li>FAQ</li>
<li>Help desk</li>
<li>Forums</li>
</ul>
</div>
<div class="col-sm-3">
<h5>Legal</h5>
<ul>
<li>Terms of Service</li>
<li>Terms of Use</li>
<li>Privacy Policy</li>
</ul>
</div>
</div>
</div>
<div class="footer-copyright">
<p>© 2020 Copyright Text</p>
</div>
</footer>
<script src="assets/js/jquery.min.js"></script>
<script src="assets/bootstrap/js/bootstrap.min.js"></script>
<script src="assets/js/chart.min.js"></script>
<script src="assets/js/bs-init.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/baguettebox.js/1.10.0/baguetteBox.min.js"></script>
<script src="assets/js/smoothproducts.min.js"></script>
<script src="assets/js/theme.js"></script>
<script src="assets/js/backend.js"></script>
</body>
</html>

The input fields - email and password, have different id in HTML and bsstudio.
In backend.js change var userEmail = document.getElementById("email").value and var userPass = document.getElementById("password").value; and run with bsstudio. Ideally it should work. If it doesn't do post your output( even if it gives error).

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I store the navbar with bootstrap 4 scrollspy in the base.html file what points on IDs on the home.html.
When I am on the home page it works like in the official bootstarp example.
1.ERROR
But when I go to other pages it just puts this URL out "http://127.0.0.1:8000/home/services/#pricing" and stay under the "http://127.0.0.1:8000/home/services/" URL.
I get a terminal ERROR message as well:
Not Found: /docs/4.3/dist/js/bootstrap.bundle.min.js
[13/Jan/2020 16:16:35] "GET /docs/4.3/dist/js/bootstrap.bundle.min.js HTTP/1.1" 404 2509
I have seen:
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If I implement any of the following than it covers the first few lines of the page.
To keep the navbar above these lines I use <div class="godown-60" id="godown"></div> lien of code.
I have tried class=" ":
Fixed navbar
fixed-top
sticky-top
base.html
<body>
<header>
<nav id="navbar-example2" class="navbar navbar-static-top navbar-light bg-light">
<a class="navbar-brand" href="{% url 'home' %}" > HOME PAGE </a>
<ul class="nav nav-pills">
<li class="nav-item">
<a class="nav-link" href="#about">About</a>
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home.html
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https://getbootstrap.com/docs/4.0/examples/navbar-top-fixed/#
ERROR 1 solution, bey using specified address (these can be actual URL's on the site or libraries as well)
href="home/help/#main"
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="">
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<link href="../../dist/css/bootstrap.min.css" rel="stylesheet">
<!-- Custom styles for this template -->
<link href="navbar-top-fixed.css" rel="stylesheet">
</head>
<body>
<nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark">
<a class="navbar-brand" href="#">Fixed navbar</a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarCollapse" aria-controls="navbarCollapse" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarCollapse">
<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="home/help/#main">Link</a>
</li>
<li class="nav-item">
<a class="nav-link disabled" href="#">Disabled</a>
</li>
</ul>
<form class="form-inline mt-2 mt-md-0">
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<button class="btn btn-outline-success my-2 my-sm-0" type="submit">Search</button>
</form>
</div>
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<!-- this solves ERROR 3 -->
<!-- having a separated section -->
<main role="main" class="container">
<div class="jumbotron">
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<p class="lead">This example is a quick exercise to illustrate how fixed to top navbar works. As you scroll, it will remain fixed to the top of your browser's viewport.</p>
<a class="btn btn-lg btn-primary" href="../../components/navbar/" role="button">View navbar docs »</a>
</div>
</main>
<!-- XXXXXXXXXXXXXXXXXXXXXXXXXXXX -->
<!-- Bootstrap core JavaScript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
<script>window.jQuery || document.write('<script src="../../assets/js/vendor/jquery-slim.min.js"><\/script>')</script>
<script src="../../assets/js/vendor/popper.min.js"></script>
<script src="../../dist/js/bootstrap.min.js"></script>
</body>
</html>

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<meta name="viewport" content="width=device-width, initial-scale=1">
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<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.0/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container-fluid">
<div class="row">
<div class="col-md-12">
<ul class="nav nav-tabs ">
<li class="nav-item">
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</li>
<li class="nav-item">
<a class="nav-link" href="create.html">Create</a>
</li>
<li class="nav-item dropdown ml-md-auto">
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<div class="dropdown-menu dropdown-menu-right" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Settings</a>
<div class="dropdown-divider">
</div> <a class="dropdown-item" href="#">Log out</a>
</div>
</li>
</ul>
</div>
</div>
<div class="row">
<div class="col-md-12">
<h3 class="text-center">
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</h3>
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<div class="row" id="search-row">
<div class="col-md-8">
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</div>
</div>
<script src="js/script.js"></script>
<script src="js/jquery.min.js"></script>
<script src="js/bootstrap.min.js"></script>
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</body>
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.
+-- static
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="Martious">
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<link href="/static/css/bootstrap.min.css" rel="stylesheet">
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<link href="/static/css/starter-template.css" rel="stylesheet">
<link href="/static/open-iconic/font/css/open-iconic-bootstrap.css" rel="stylesheet">
</head>
<body>
<!--
<nav class="navbar navbar-expand-md navbar-dark bg-dark fixed-top">
-->
<nav class="navbar navbar-expand-md navbar-dark fixed-top" style="background-color: #00aeef;">
<a class="navbar-brand" href="/"> Martious Data Science Hub </a>
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarsExampleDefault" aria-controls="navbarsExampleDefault" aria-expanded="false" aria-label="Toggle navigation">
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<!--
<li class="nav-link inactive">
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</li>
<li class="nav-item active">
<a class="nav-link" href="#"><i class="fa fa-minus-circle"></i> Score Card</a>
</li>
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<ul class="navbar-nav navbar-right">
<li class="nav-item active">
<a class="nav-link" href="#">Welcome, "Test User!"<span class="sr-only">(current)</span></a>
</li>
<li class="nav-link inactive">
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</li>
<!--
<li class="nav-item active">
<a class="nav-link" href="#"> <i class="fa fa-user"></i> My Profile <span class="sr-only">(current)</span></a>
</li>
<li class="nav-item active">
<a class="nav-link" href="#"> <i class="fa fa-user"></i> My Team <span class="sr-only">(current)</span></a>
</li>
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<li class="nav-item active">
<a class="nav-link" href="/authorization/logout/"> <i class="fa fa-sign-out"></i> Logout <span class="sr-only">(current)</span></a>
</li>
</ul>
</div>
</nav>
<script>
$(function () {
$('[data-toggle="tooltip"]').tooltip()
});
</script>
<div class="mx-auto" style="max-width: 70%">
<div class="container text-center text-muted">
<div class="container align-middle">
<BR><BR><BR>
<div class="display-4">Sentiment Analysis
<!-- <span class="text-warning"><small>ⓘ</small></span>-->
<button type="button" class="btn btn-secondary" data-toggle="tooltip" data-html="true" data-placement="right" title="<b>Upload a text (*.txt) file to analyze sentiment using Vader algorithm</b>">
<span class="oi oi-info" aria-hidden="true"></span>
</button>
</div>
</div>
</div>
</div>
<!-- https://www.npmjs.com/package/bs-custom-file-input -->
<script src="/static/js/bs-custom-file-input.min.js"></script>
<script>
bsCustomFileInput.init();
</script>
<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.bundle.min.js"
integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM"
crossorigin="anonymous"></script>
</body>
</html>
Tooltip style is not picked up as shown on bootstrap page.
Tooltip Rendered
Expected Tooltip
I cannot find what is wrong with code. Looking for help...

I was able to fix this issue by adding bootstrap import in head
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="description" content="">
<meta name="author" content="Martious">
<link rel="shortcut icon" href="/static/favicon.ico">
<title>Start Your Data Science Journey Here...</title>
<!-- Bootstrap Core CSS -->
<link href="/static/css/bootstrap.min.css" rel="stylesheet">
<!-- Additional Custom Style CSS -->
<link href="/static/css/starter-template.css" rel="stylesheet">
<link href="/static/open-iconic/font/css/open-iconic-bootstrap.css" rel="stylesheet">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"></script>
</head>
This is NOT as per bootstrap recommendation (https://getbootstrap.com/docs/4.3/getting-started/introduction/#starter-template), but it works.
The fix came from code described # https://www.w3schools.com/bootstrap4/bootstrap_tooltip.asp

I suggest you to just use the bundle Popper + Bootstrap: bootstrap.bundle.min.js or bootstrap.bundle.js. That should bypass any problem you may have with correct file order initialization. I mean, whether you place your files in header and/or body (in my case, it worked after placing the bundle at the bottom of the body, before closing the body tag).
https://getbootstrap.com/docs/5.1/components/tooltips/#overview
And remember to initialize the tooltips correctly from your local scripts:
https://getbootstrap.com/docs/5.1/components/tooltips/#example-enable-tooltips-everywhere
This Vanila JS code should be enough for that:
var tooltipTriggerList = [].slice.call(document.querySelectorAll('[data-bs-toggle="tooltip"]'))
tooltipTriggerList.map(function (tooltipTriggerEl) {
return new bootstrap.Tooltip(tooltipTriggerEl)
})
By the way, I placed this code after the aforementioned bundle.

Bootstrap slider not working: slider is not a function

my Bootstrap slider is not working. I'm not sure why. Here' my HTML where all css and js loading correctly. I get an error in console: slider is not a function. I downloaded the latest version of bootstrap slider (using Chrome). The slider, if triggered from console also doesn't work.
<html lang="en">
<head>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1">
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
<link rel="stylesheet" href="/static/css/header.css" />
<script type="text/javascript">
$(document).ready(function() {
$('.slider').slider();
});
</script>
</head>
<body>
<nav class="navbar navbar-default navbar-inverse" role="navigation">
<div class="container-fluid">
<!-- Brand and toggle get grouped for better mobile display -->
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#"></a>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right">
<li class="active">How it works</li>
<li>Find Vet</li>
<li class="dropdown">
About<span class="caret"></span>
<ul class="dropdown-menu" role="menu">
<li>Company</li>
<li>Team</li>
<li class="divider"></li>
<li>Contact</li>
</ul>
</li>
<li class="dropdown">
<b>Login</b> <span class="caret"></span>
<ul id="login-dp" class="dropdown-menu">
<li>
<div class="row">
<div class="col-md-12">
Login via
<div class="social-buttons">
<i class="fa fa-facebook"></i> Facebook
<i class="fa fa-twitter"></i> Twitter
</div>
or
<form class="form" role="form" method="post" action="login" accept-charset="UTF-8" id="login-nav">
<div class="form-group">
<label class="sr-only" for="exampleInputEmail2">Email address</label>
<input type="email" class="form-control" id="exampleInputEmail2" placeholder="Email address" required>
</div>
<div class="form-group">
<label class="sr-only" for="exampleInputPassword2">Password</label>
<input type="password" class="form-control" id="exampleInputPassword2" placeholder="Password" required>
<div class="help-block text-right">Forget the password ?</div>
</div>
<div class="form-group">
<button type="submit" class="btn btn-primary btn-block">Sign in</button>
</div>
<div class="checkbox">
<label>
<input type="checkbox"> keep me logged-in
</label>
</div>
</form>
</div>
<div class="bottom text-center">
New here ? <b>Join Us</b>
</div>
</div>
</li>
</ul>
</li>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
<div id="content">
<input type="text" class="" value="" data-slider-min="2" data-slider-max="25" data-slider-step="1" data-slider-value="25" data-slider-orientation="vertical" data-slider-selection="after" data-slider-tooltip="show">
</div>
<link rel="stylesheet" href="/static/css/bootstrap-min.css"/>
<link rel="stylesheet" href="/static/css/header.css"/>
<link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css"/>
<link rel="stylesheet" href="/static/css/bootstrap-side-notes.css" />
<link rel="stylesheet" href="/static/css/animate.css"/>
<link rel="stylesheet" href="/static/css/bootstrap-formhelpers-min.css" media="screen"/>
<link rel="stylesheet" href="/static/css/slider.css"/>
<script type="text/javascript" src="//netdna.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<script type="text/javascript" src="/static/js/bootstrap-formhelpers-min.js"></script>
<script type="text/javascript" src="/static/js/validator.min.js"></script>
<script type="text/javasript" src="/static/js/bootstrap-slider.js"></script>
</body>
</html>

<script type="text/javasript" src="/static/js/bootstrap-slider.js"></script>
Typo on the type, missing a 'c' in javascript should be:
<script type="text/javascript" src="/static/js/bootstrap-slider.js"></script>
I'd suggest looking into a good IDE/Editor.

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