Is DriveApp.getFiles() the equivalent of DocsList.getFiles()?

Question

I am using the importFromCSV script and it ran fine the first time but I got a warning in the script editor that the DocsList.getFiles() is deprecated and should find an alterna

Answer 1

Short answer is no

DocsList returns an array of files while DriveApp returns a file iterator. See documentation here.

But when I see your code, you don't get the file by name but you use the ID... so you could simplify your code using DriveApp.getFileById('0B2n-RwpLExXnaXRBWG1aT3NLbm8') that will immediately return the right file without iterating or looping...