Add page slug in body css class

wp add age slug in body css class

/**
 * Add page slug in  body class
 * 
 * @global type $post
 * @param string $classes
 * @return string
 */
//Page Slug Body Class
function add_slug_body_class( $classes ) {
global $post;
if ( isset( $post ) ) {
$classes[] = $post->post_type . '-' . $post->post_name;
}
return $classes;
}
add_filter( 'body_class', 'add_slug_body_class' );