Delete all files AND subfolders in a parent folder in Google Drive - google-apps-script

Question

I have the below script - which finds all the files in a folder (including files in subfolders) and deletes them, however, I want this script to delete all the folders in the parent folder as well. So basically the entire contents of the parent folder are wiped.
function DeleteInvoices() {
const getAllFiles = folder => {
const files = folder.getFiles();
while (files.hasNext()) {
const file = files.next();
console.log(file.getName());
file.setTrashed(true);
}
const folders = folder.getFolders();
while (folders.hasNext()) getAllFiles(folders.next());
}
var folder = DriveApp.getFolderById("1-2VAPBzEQxCaoN7KGSB_K_peiLIDk32e");
getAllFiles(folder);
}
Any help would be greatly appreciated :)

Answer 1

To trash the files and folders contained in a parent folder, you only need to iterate through the first level
Nested files and folders will be automatically trashed if their parent folder is trashed
The method setTrashed(trashed) is not only available for files, but also for folders
Working sample:
function DeleteAllContents() {
var folder = DriveApp.getFolderById("1-2VAPBzEQxCaoN7KGSB_K_peiLIDk32e");
const files = folder.getFiles();
while (files.hasNext()){
var file = files.next();
file.setTrashed(true);
}
const folders = folder.getFolders();
while (folders.hasNext()){
var folder = folders.next();
folder.setTrashed(true);
}
}