I will use a comma in my code! 
At first I thought. ‘Do I need to make a cache server to reduce the API load?’
Because this is my first use of the Twitch API. 
(With these concerns, I have not released the code yet.)
So I saw Chrome and Firefox extension code with more than 100 users.
However, most of the code did not use a cache server.
So I wondered if there was a standard.
But thanks to you, some questions have been solved.
Thanks for your reply!