Recently as part of a self-paced independent learning journey, I've been following along some LinkedIn Learning courses (More information on the specific courses available on my personal Blog: ItsCodeOutside.com).
Thus, I followed along with "Google Apps Script for JavaScript Developers" by Jesse Freeman. In this course, I learned how to find files, open files, parse them into readable data, and manipulate files from pre-existing raw data. If you are unfamiliar with LinkedIn Learning, you might want to check if your school/public library/workplace includes a subscription.
From what I learned in just a few hours, I had an idea to create a WebApp that would allow me to duplicate any Google Doc as many times as needed. While it may not seem that beneficial at first, Google only offers the "Make a copy" button, which only duplicates it once. If you want something duplicated 30 times, you will need to click it 30 times. Therefor, my script will allow you to paste a link, and tell it how many times you would like to duplicate your file.
Check my blog post for the code.