(function ($)()

in themes/docsy/assets/js/anchor.js [17:49]

• 3 lines of code
• 1 McCabe index (conditional complexity)

(function ($) {
    'use strict';

    // Headers' anchor link that shows on hover
    $(function () {
        // append anchor links to headings in markdown.
        var article = document.getElementsByTagName('main')[0];
        if (!article) {
            return;
        }
        var headings = article.querySelectorAll('h1, h2, h3, h4, h5, h6');
        headings.forEach(function (heading) {
            if (heading.id) {
                var a = document.createElement('a');
                // set visibility: hidden, not display: none to avoid layout change
                a.style.visibility = 'hidden';
                // [a11y] hide this from screen readers, etc..
                a.setAttribute('aria-hidden', 'true');
                // material insert_link icon in svg format
                a.innerHTML = ' <svg xmlns="http://www.w3.org/2000/svg" fill="currentColor" width="24" height="24" viewBox="0 0 24 24"><path d="M0 0h24v24H0z" fill="none"/><path d="M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z"/></svg>';
                a.href = '#' + heading.id;
                heading.insertAdjacentElement('beforeend', a);
                heading.addEventListener('mouseenter', function () {
                    a.style.visibility = 'initial';
                });
                heading.addEventListener('mouseleave', function () {
                    a.style.visibility = 'hidden';
                });
            }
        });
    });

}(jQuery));