How to split string to array by comma using jquery?

When i did start to learn "Laravel Cashier" and i was following step by step of laravel official document, but i run bellow command :

php artisan cashier:table users

At that time i found following error on my terminal:

[SymfonyComponentConsoleExceptionCommandNotFoundException] 
 There are no commands defined in the "cashier" namespace.

I try to solve this error, i also clear all cache and add service provider, it means i try totally and i can't found solution for this error, but you can also add migration like this way if you want it is a same like we did bellow command. so first run command for create migration:

php artisan make:migration add_cashier_table_fields

ok, now put bellow content on following file :

Migration:

use IlluminateDatabaseSchemaBlueprint;
use IlluminateDatabaseMigrationsMigration;
class AddBillTable extends Migration
{
 /**
 * Run the migrations.
 *
 * @return void
 */
 public function up()
 {
 Schema::table('users', function ($table) {
 $table->string('stripe_id')->nullable();
 $table->string('card_brand')->nullable();
 $table->string('card_last_four')->nullable();
 $table->timestamp('trial_ends_at')->nullable();
 });
 Schema::create('subscriptions', function ($table) {
 $table->increments('id');
 $table->integer('user_id');
 $table->string('name');
 $table->string('stripe_id');
 $table->string('stripe_plan');
 $table->integer('quantity');
 $table->timestamp('trial_ends_at')->nullable();
 $table->timestamp('ends_at')->nullable();
 $table->timestamps();
 });
 }
 /**
 * Reverse the migrations.
 *
 * @return void
 */
 public function down()
 {

 }
}