This is very simple, all you want to know is Folder Name.
Imagine, I have a folder in my Google Drive as "Developments", I need to find the folder ID.
There are two approaches,
1. Manual method (Which is I like the most)Go to your folder on thr drive, check folder URL, copy folder id :)
2. Google Apps Scripts MethodAll you want to do is call this function;
var your_folder_id = getFolderID("Developments");Please comment your thoughts and like the post.