A single-level menu with a toggle is the most common type of menu that can be used with accessible-menu-bootstrap-4.
An example of this kind of menu is as follows:
<nav id="main-nav" aria-label="Main" class="navbar navbar-expand-lg">
<button id="main-menu-toggle" aria-label="Toggle main menu" class="navbar-toggler">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse">
<ul id="main-menu" class="navbar-nav">
<li class="nav-item">
<a href="/about" class="nav-link">About</a>
</li>
<li class="nav-item">
<a href="/projects" class="nav-link">Projects</a>
</li>
<li class="nav-item">
<a href="/contact" class="nav-link">Contact me</a>
</li>
</ul>
</div>
</nav>
Given the above structure, the parameters needed for an accessible menu are:
menuElement
controllerElement
containerElement
Depending on what kind of menu you'd like to create you can use Bootstrap4DisclosureMenu, Bootstrap4Menubar, or Bootstrap4Treeview.
const menu = new AccessibleMenuBootstrap4.Bootstrap4DisclosureMenu({
menuElement: document.querySelector("#main-nav .navbar-nav"),
controllerElement: document.querySelector("#main-nav .navbar-toggler"),
containerElement: document.querySelector("#main-nav .navbar-collapse"),
});