Review the dynamic data code for displaying cart items

Hello developers. I have created a dynamic data using AI to display the number of items in the cart and it works fine. I wanted to share it to make sure it is correct and written correctly.

I hope to have this dynamic data natively in Bricks in the near future.

add_filter('bricks/dynamic_tags_list', function($tags) {
    $tags[] = [
        'name'  => '{cart_count}',
        'label' => 'Cart Count',
        'group' => 'custom',
    ];
    return $tags;
});

add_filter('bricks/dynamic_data/render_tag', function($tag) {
    if ($tag !== '{cart_count}') return $tag;
    $count = WC()->cart ? WC()->cart->get_cart_contents_count() : 0;
    return '<span data-brx-cart-count="bfzuxu">' . $count . '</span>';
}, 20, 3);

$render_cb = function($content) {
    if (strpos($content, '{cart_count}') === false) return $content;
    $count = WC()->cart ? WC()->cart->get_cart_contents_count() : 0;
    return str_replace('{cart_count}', '<span data-brx-cart-count="bfzuxu">' . $count . '</span>', $content);
};
add_filter('bricks/dynamic_data/render_content', $render_cb, 20, 3);
add_filter('bricks/frontend/render_data', $render_cb, 20, 2);

add_filter('woocommerce_add_to_cart_fragments', function($fragments) {
    $count = WC()->cart ? WC()->cart->get_cart_contents_count() : 0;
    $fragments['span[data-brx-cart-count="bfzuxu"]'] = '<span data-brx-cart-count="bfzuxu">' . $count . '</span>';
    return $fragments;
});

add_action('wp_footer', function() {
    if (!is_cart()) return;
    ?>
    <script>
    (function($){
        function updateCartCount() {
            $.post('<?php echo admin_url('admin-ajax.php'); ?>', {action:'get_cart_count'}, function(count){
                $('span[data-brx-cart-count="bfzuxu"]').html(count);
            });
        }
        $(document.body).on('updated_cart_totals removed_from_cart wc_cart_emptied', updateCartCount);
    })(jQuery);
    </script>
    <?php
});

add_action('wp_ajax_get_cart_count', function() {
    wp_send_json(WC()->cart ? WC()->cart->get_cart_contents_count() : 0);
});
add_action('wp_ajax_nopriv_get_cart_count', function() {
    wp_send_json(WC()->cart ? WC()->cart->get_cart_contents_count() : 0);
});