WordPress at a glance
function is not described

wp_ajax_sample_permalink() WP 3.1.0

Ajax handler to retrieve a sample permalink.

No Hooks.

Return

Nothing (null).

Usage

wp_ajax_sample_permalink();

Code of wp ajax sample permalink: wp-admin/includes/ajax-actions.php WP 5.2.2

<?php
function wp_ajax_sample_permalink() {
	check_ajax_referer( 'samplepermalink', 'samplepermalinknonce' );
	$post_id = isset( $_POST['post_id'] ) ? intval( $_POST['post_id'] ) : 0;
	$title   = isset( $_POST['new_title'] ) ? $_POST['new_title'] : '';
	$slug    = isset( $_POST['new_slug'] ) ? $_POST['new_slug'] : null;
	wp_die( get_sample_permalink_html( $post_id, $title, $slug ) );
}