Where does a new comment button inserts a data?

A new comment button typically inserts data into a database or a data structure that stores comments related to a specific post, article, or item. When clicked, it collects the user's input and sends it to the server, which then saves it in the appropriate table or collection. This can include fields such as the comment text, user ID, timestamp, and associated post ID. The newly added comment is then retrieved and displayed on the front end for other users to see.