https://nationformarriage.org/wp-content/themes/politicalwp/js/navigation.js?ver=1.0.0

1
2/**
3 * 19. navigation.js
4 *
5 * Handles toggling the navigation menu for small screens.
6 */
7( function() {
8    var container, button, menu;
9
10    container = document.getElementById( 'site-navigation' );
11    if ( ! container ) {
12        return;
13    }
14
15    button = container.getElementsByTagName( 'button' )[0];
16    if ( 'undefined' === typeof button ) {
17        return;
18    }
19
20    menu = container.getElementsByTagName( 'ul' )[0];
21
22    // Hide menu toggle button if menu is empty and return early.
23    if ( 'undefined' === typeof menu ) {
24        button.style.display = 'none';
25        return;
26    }
27
28    menu.setAttribute( 'aria-expanded', 'false' );
29
30    if ( -1 === menu.className.indexOf( 'nav-menu' ) ) {
31        menu.className += ' nav-menu';
32    }
33
34    button.onclick = function() {
35        if ( -1 !== container.className.indexOf( 'toggled' ) ) {
36            container.className = container.className.replace( ' toggled', '' );
37            button.setAttribute( 'aria-expanded', 'false' );
38            menu.setAttribute( 'aria-expanded', 'false' );
39        } else {
40            container.className += ' toggled';
41            button.setAttribute( 'aria-expanded', 'true' );
42            menu.setAttribute( 'aria-expanded', 'true' );
43        }
44    };
45} )();
46