Answers for "composer require laravel/ui for 2.6"

composer laravel ui

composer require laravel/ui
  
// Generate basic scaffolding...
php artisan ui bootstrap
php artisan ui vue
php artisan ui react

// Generate login / registration scaffolding...
php artisan ui bootstrap --auth
php artisan ui vue --auth
php artisan ui react --auth

composer require laravel/ui laravel 7

composer require laravel/ui:^2.4