Update

after/ftplugin/jsx.vim

@@ -0,0 +1,35 @@
+if !exists('g:polyglot_disabled') || (index(g:polyglot_disabled, 'javascript') == -1 && index(g:polyglot_disabled, 'jsx') == -1)
+
+"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+" Vim ftplugin file
+"
+" Language: javascript.jsx
+" Maintainer: MaxMEllon <maxmellon1994@gmail.com>
+"
+"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+" modified from html.vim
+" For matchit plugin
+if exists("loaded_matchit")
+  let b:match_ignorecase = 0
+  let b:match_words = '(:),\[:\],{:},<:>,' .
+        \ '<\@<=\([^/][^ \t>]*\)[^>]*\%(>\|$\):<\@<=/\1>'
+endif
+
+" For andymass/vim-matchup plugin
+if exists("loaded_matchup")
+  setlocal matchpairs=(:),{:},[:],<:>
+  let b:match_words = '<\@<=\([^/][^ \t>]*\)\g{hlend}[^>]*\%(/\@<!>\|$\):<\@<=/\1>'
+  let b:match_skip = 's:comment\|string'
+endif
+
+let b:jsx_pretty_old_cms = &l:commentstring
+
+augroup jsx_comment
+  autocmd! CursorMoved <buffer>
+  autocmd CursorMoved <buffer> call jsx_pretty#comment#update_commentstring(b:jsx_pretty_old_cms)
+augroup end
+
+setlocal suffixesadd+=.jsx
+
+endif