Find what filetype is loaded in vim
Solution 1:
:set filetype?
Solution 2:
&filetype for script usage
Minimal example:
echo &filetype
More realistic usage example:
if &filetype ==# 'c' || &filetype ==# 'cpp'
setlocal noexpandtab
endif
& syntax works for all options: https://vi.stackexchange.com/questions/2569/how-do-i-check-the-value-of-a-vim-option-in-vimscript