Yesterday I was VimScripting and learned that the
autocmd function can execute against multiple file extensions in a single line of setup. Here’s a contrived example:
" ~/.vimrc autocmd BufWritePost *.exs,*.ex :! git add %
In this code, after every buffer write on files matching
.exs, add the current buffer to our Git staging area. Learning this helped me reduce duplication in my configuration.