How to delete a File in Google Drive?

Question

How do I write a Google Apps Script that deletes files?

This finds files:

var ExistingFiles = DocsList.find(fileName);

But Do

Answer 1

Though the The service DocsList is now deprecated, as from the Class Folder references, the settrashed method is still valid:

https://developers.google.com/apps-script/reference/drive/folder#settrashedtrashed

So should work simply this:

ExistingFiles.settrashed(true);