I'm using a Bootstrap navigation bar. this navigation should move up when scrolling down and move down when scrolling up. that works very well. I have 2 functions that work well independently of each other. the first function causes the class to be exchanged as soon as the top is reached. the second function causes the navigation to scroll up and down. When both are put together, the navigation slides multiple times. So something interferes with the slide.
$(window).scroll(function() {
var scroll = $(window).scrollTop();
var objectSelect = $(".navbar");
var objectPosition = objectSelect.offset().top;
if (scroll > objectPosition) {
$(".navbar").addClass("sticky");
$(".navbar").removeClass("stickyb");
} else {
$(".navbar").addClass("stickyb");
$(".navbar").removeClass("sticky");
}
});
var prevScrollpos = window.pageYOffset;
window.onscroll = function() {
var currentScrollPos = window.pageYOffset;
if (prevScrollpos > currentScrollPos) {
$('.navbar').slideDown('fast');
} else {
$('.navbar').slideUp('fast');
}
prevScrollpos = currentScrollPos;
};.container-fluid, .row {
margin: 0;
padding: 0
}
.sticky {
position: fixed;
top: 0;
width: 100%;
z-index: 3;
}
.stickyb {
top: 0;
width: 100%;
z-index: 3;
}
#content {
font-size: 35px
}<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-iYQeCzEYFbKjA/T2uDLTpkwGzCiq6soy8tYaI1GyVh/UjpbCx/TYkiZhlZB6+fzT" crossorigin="anonymous">
<nav class="navbar navbar-expand-lg navbar-dark bg-dark sticky">
<div class="container-fluid"> <a class="navbar-brand" href="#">Navbar</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 me-auto mb-2 mb-lg-0">
<li class="nav-item"> <a class="nav-link active" aria-current="page" href="#">Link 1</a> </li>
<li class="nav-item"> <a class="nav-link" href="#">Link 2</a> </li>
<li class="nav-item"> <a class="nav-link" href="#">Link 3</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>
<div class="container-fluid row">
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</div>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-u1OknCvxWvY5kfmNBILK2hRnQC3Pr17a+RTT6rIHI7NnikvbZlHgTPOOmMi466C8" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>