create seeder and factory in laravel code example

Example 1: how to run specific seeder in laravel

php artisan db:seed --class=UserSeeder

Example 2: laravel migrate seed

php artisan migrate:fresh --seed

Example 3: laravel 8 seeding

/**
 * Run the database seeders.
 *
 * @return void
 */
public function run()
{
    $this->call([
        UserSeeder::class,
        PostSeeder::class,
        CommentSeeder::class,
    ]);
}