WordPress

To use the mmenu.js plugin in a WordPress project, add "wordpress" to the wrappers option.

<script>
    document.addEventListener(
        "DOMContentLoaded", () => {
            new Mmenu( "#my-menu", {
                wrappers: ["wordpress"]
            });
        }
    );
</script>

What it does

Using the "wordpress" wrapper will set the classNames.selected configuration option to the default classname used by WordPress.