Dismissible notice with AJAX

dismissible-ajax-notice.php

<?php

function wpdesk_permanent_dismisible_info_notice_for_administrator() {
    $notice name = 'admin_notice';
    if ( intval( get_option( 'wpdesk_notice_dismiss_' . $notice_name, 0 ) ) !== 1 ) {
        $user = wp_get current_user();
	if ( in_array( 'administrator', $user->roles ) ) {
    	    ?>
            <div class="notice notice-info is-dismissible" data-notice-name="<?php echo $notice_name; ?>">
	        <p>Info notice for administrator.</p>
    	    </div>
            <?php
	}
    }
}
add_action( 'admin_notices', 'wpdesk_permanent_dismisible_info_notice_for_administrator' );

function wpdesk_ajax_notice_dismiss() {
    if (isset($_POST['notice_name'])) {
	$notice name = $_POST['notice_name'];
        update_option( 'wpdesk_notice_dismiss_' . $notice_name, 1 );
    }
}
add_action( 'wp_ajax_wpdesk_notice_dismiss', 'wpdesk_ajax_notice_dismiss' );


function wpdesk_admin_head_sctipt() {
?>
<script type="text/javascript">
jQuery( document ).on( 'click', '.notice-dismiss', function() {
    var notice_name = jQuery(this).closest('div.notice').data('notice-name');
    if ('' !== notice_name) {
        jQuery.ajax({
            url: ajaxurl,
            type: 'post',
            data: {
                action: 'wpdesk_notice_dismiss',
                notice_name: notice_name
            },
            success: function (response) {
            }
        });
    }
});
</script>
<?php
}
add_action( 'admin_head', 'wpdesk_admin_head_sctipt' );