Vim run autocmd on all filetypes EXCEPT

Question

I have a Vim autocmd that removes trailing whitespace in files before write. I want this almost 100% of the time, but there are a few filetypes that I\'d like it disabled. C

Answer 1

Another choice of one line way:

let blacklist = ['rb', 'js', 'pl']
autocmd BufWritePre * if index(blacklist, &ft) < 0 | do somthing you like

Then you can do something you like for all filetypes except those in blacklist.