prettier with project specific configs https://github.com/jlongster/prettier/issues/98#issuecomment-280060325

prettier-config

#!/bin/sh

opts=""

while true; do

    if [ -f .prettieropts ]; then
        opts=$(cat .prettieropts)
        break
    fi

    if [ "$(pwd)" = "/" ]; then
        break
    fi

    cd ..

done

exec prettier $opts $@

prettier-config.vim

" for neoformat https://github.com/sbdchd/neoformat

let g:neoformat_javascript_prettier = {
    \ 'exe': 'prettier-config',
    \ 'args': ['--stdin'],
    \ 'stdin': 1,
    \ }

let g:neoformat_enabled_javascript = ['prettier']

autocmd BufWritePre *.js exe ":Neoformat"