Display 6 most recent post on homepage?

$queryArgs = array(
                // Do not get posts from the Uncategorized category.
                'cat' => '-1',
                // Order by date.
                'orderby' => 'date',
                // Show all posts.
                'posts_per_page' => '6',
                'post_type' => 'portfolio',
                'post_status' => 'publish',
               );
        $query = new WP_Query( $queryArgs );