Disable Neoformat format on save for .jsx files

[jininvt]

Need to disable Neoformat format on save for .jsx files as it conflicts with CoC. How can I do that?

My init.vim file:

augroup fmt
  autocmd!
  autocmd BufWritePre * undojoin | Neoformat
augroup END

let g:neoformat_enabled_python = ['yapf']

[mazharz]

I figure out that something like this:

autocmd BufWritePre *\(.jsx\)\@<! undojoin | Neoformat

would solve the problem.