diff --git a/.vimrc b/.vimrc
index 366ae4fe..9385a6e2 100755
--- a/.vimrc
+++ b/.vimrc
@@ -2,4 +2,5 @@ source ~/dev/dotfiles/.vimrc.plugins-settings
 source ~/dev/dotfiles/.vimrc.filetypes
 source ~/dev/dotfiles/.vimrc.settings
 source ~/dev/dotfiles/.vimrc.keymap
+source ~/dev/dotfiles/.vimrc.coc
 
diff --git a/.vimrc.coc b/.vimrc.coc
new file mode 100644
index 00000000..cdb26658
--- /dev/null
+++ b/.vimrc.coc
@@ -0,0 +1,139 @@
+
+" Use tab for trigger completion with characters ahead and navigate.
+" NOTE: There's always complete item selected by default, you may want to enable
+" no select by `"suggest.noselect": true` in your configuration file.
+" NOTE: Use command ':verbose imap <tab>' to make sure tab is not mapped by
+" other plugin before putting this into your config.
+inoremap <silent><expr> <TAB>
+            \ coc#pum#visible() ? coc#pum#next(1) :
+            \ CheckBackspace() ? "\<Tab>" :
+            \ coc#refresh()
+inoremap <expr><S-TAB> coc#pum#visible() ? coc#pum#prev(1) : "\<C-h>"
+
+" Make <CR> to accept selected completion item or notify coc.nvim to format
+" <C-g>u breaks current undo, please make your own choice.
+inoremap <silent><expr> <CR> coc#pum#visible() ? coc#pum#confirm()
+            \: "\<C-g>u\<CR>\<c-r>=coc#on_enter()\<CR>"
+
+function! CheckBackspace() abort
+    let col = col('.') - 1
+    return !col || getline('.')[col - 1]  =~# '\s'
+endfunction
+
+" Use <c-space> to trigger completion.
+if has('nvim')
+    inoremap <silent><expr> <c-space> coc#refresh()
+else
+    inoremap <silent><expr> <c-@> coc#refresh()
+endif
+
+" Use `[g` and `]g` to navigate diagnostics
+" Use `:CocDiagnostics` to get all diagnostics of current buffer in location list.
+nmap <silent> [g <Plug>(coc-diagnostic-prev)
+nmap <silent> ]g <Plug>(coc-diagnostic-next)
+
+" GoTo code navigation.
+nmap <silent> gd <Plug>(coc-definition)
+nmap <silent> gy <Plug>(coc-type-definition)
+nmap <silent> gi <Plug>(coc-implementation)
+nmap <silent> gr <Plug>(coc-references)
+
+" Use K to show documentation in preview window.
+nnoremap <silent> K :call ShowDocumentation()<CR>
+
+function! ShowDocumentation()
+    if CocAction('hasProvider', 'hover')
+        call CocActionAsync('doHover')
+    else
+        call feedkeys('K', 'in')
+    endif
+endfunction
+
+" Highlight the symbol and its references when holding the cursor.
+autocmd CursorHold * silent call CocActionAsync('highlight')
+
+" Symbol renaming.
+nmap <leader>rn <Plug>(coc-rename)
+
+" Formatting selected code.
+xmap <leader>f  <Plug>(coc-format-selected)
+nmap <leader>f  <Plug>(coc-format-selected)
+
+augroup mygroup
+    autocmd!
+    " Setup formatexpr specified filetype(s).
+    autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
+    " Update signature help on jump placeholder.
+    autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
+augroup end
+
+" Applying codeAction to the selected region.
+" Example: `<leader>aap` for current paragraph
+xmap <leader>a  <Plug>(coc-codeaction-selected)
+nmap <leader>a  <Plug>(coc-codeaction-selected)
+
+" Remap keys for applying codeAction to the current buffer.
+nmap <leader>ac  <Plug>(coc-codeaction)
+" Apply AutoFix to problem on the current line.
+nmap <leader>qf  <Plug>(coc-fix-current)
+
+" Run the Code Lens action on the current line.
+nmap <leader>cl  <Plug>(coc-codelens-action)
+
+" Map function and class text objects
+" NOTE: Requires 'textDocument.documentSymbol' support from the language server.
+xmap if <Plug>(coc-funcobj-i)
+omap if <Plug>(coc-funcobj-i)
+xmap af <Plug>(coc-funcobj-a)
+omap af <Plug>(coc-funcobj-a)
+xmap ic <Plug>(coc-classobj-i)
+omap ic <Plug>(coc-classobj-i)
+xmap ac <Plug>(coc-classobj-a)
+omap ac <Plug>(coc-classobj-a)
+
+" Remap <C-f> and <C-b> for scroll float windows/popups.
+if has('nvim-0.4.0') || has('patch-8.2.0750')
+    nnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
+    nnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
+    inoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(1)\<cr>" : "\<Right>"
+    inoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? "\<c-r>=coc#float#scroll(0)\<cr>" : "\<Left>"
+    vnoremap <silent><nowait><expr> <C-f> coc#float#has_scroll() ? coc#float#scroll(1) : "\<C-f>"
+    vnoremap <silent><nowait><expr> <C-b> coc#float#has_scroll() ? coc#float#scroll(0) : "\<C-b>"
+endif
+
+" Use CTRL-S for selections ranges.
+" Requires 'textDocument/selectionRange' support of language server.
+nmap <silent> <C-s> <Plug>(coc-range-select)
+xmap <silent> <C-s> <Plug>(coc-range-select)
+
+" Add `:Format` command to format current buffer.
+command! -nargs=0 Format :call CocActionAsync('format')
+
+" Add `:Fold` command to fold current buffer.
+command! -nargs=? Fold :call     CocAction('fold', <f-args>)
+
+" Add `:OR` command for organize imports of the current buffer.
+command! -nargs=0 OR   :call     CocActionAsync('runCommand', 'editor.action.organizeImport')
+
+" Add (Neo)Vim's native statusline support.
+" NOTE: Please see `:h coc-status` for integrations with external plugins that
+" provide custom statusline: lightline.vim, vim-airline.
+set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}
+
+" Mappings for CoCList
+" Show all diagnostics.
+nnoremap <silent><nowait> <space>a  :<C-u>CocList diagnostics<cr>
+" Manage extensions.
+nnoremap <silent><nowait> <space>e  :<C-u>CocList extensions<cr>
+" Show commands.
+nnoremap <silent><nowait> <space>c  :<C-u>CocList commands<cr>
+" Find symbol of current document.
+nnoremap <silent><nowait> <space>o  :<C-u>CocList outline<cr>
+" Search workspace symbols.
+nnoremap <silent><nowait> <space>s  :<C-u>CocList -I symbols<cr>
+" Do default action for next item.
+nnoremap <silent><nowait> <space>j  :<C-u>CocNext<CR>
+" Do default action for previous item.
+nnoremap <silent><nowait> <space>k  :<C-u>CocPrev<CR>
+" Resume latest coc list.
+nnoremap <silent><nowait> <space>p  :<C-u>CocListResume<CR>
diff --git a/.vimrc.keymap b/.vimrc.keymap
index 4ed20400..7f760b84 100755
--- a/.vimrc.keymap
+++ b/.vimrc.keymap
@@ -34,62 +34,3 @@ nnoremap <Leader>/ :Ack!<Space>
 nnoremap <silent> [q :cprevious<CR>
 nnoremap <silent> ]q :cnext<CR>
 
-" coc
-function! s:check_back_space() abort
-    let col = col('.') - 1
-    return !col || getline('.')[col - 1]  =~# '\s'
-endfunction
-
-function! s:show_documentation()
-    if (index(['vim','help'], &filetype) >= 0)
-        execute 'h '.expand('<cword>')
-    else
-        call CocAction('doHover')
-    endif
-endfunction
-inoremap <silent><expr> <TAB>
-            \ pumvisible() ? "\<C-n>" :
-            \ <SID>check_back_space() ? "\<TAB>" :
-            \ coc#refresh()
-inoremap <expr><S-TAB> pumvisible() ? "\<C-p>" : "\<C-h>"
-inoremap <silent><expr> <c-space> coc#refresh()
-
-if exists('*complete_info')
-    inoremap <expr> <cr> complete_info()["selected"] != "-1" ? "\<C-y>" : "\<C-g>u\<CR>"
-else
-    inoremap <expr> <cr> pumvisible() ? "\<C-y>" : "\<C-g>u\<CR>"
-endif
-
-nmap <silent> [g <Plug>(coc-diagnostic-prev)
-nmap <silent> ]g <Plug>(coc-diagnostic-next)
-
-nmap <silent> gd <Plug>(coc-definition)
-nmap <silent> gy <Plug>(coc-type-definition)
-nmap <silent> gi <Plug>(coc-implementation)
-nmap <silent> gr <Plug>(coc-references)
-
-nnoremap <silent> K :call <SID>show_documentation()<CR>
-nmap <leader>rn <Plug>(coc-rename)
-xmap <leader>f  <Plug>(coc-format-selected)
-nmap <leader>f  <Plug>(coc-format-selected)
-xmap <leader>a  <Plug>(coc-codeaction-selected)
-nmap <leader>a  <Plug>(coc-codeaction-selected)
-
-nmap <leader>ac  <Plug>(coc-codeaction)
-nmap <leader>qf  <Plug>(coc-fix-current)
-
-xmap if <Plug>(coc-funcobj-i)
-xmap af <Plug>(coc-funcobj-a)
-omap if <Plug>(coc-funcobj-i)
-omap af <Plug>(coc-funcobj-a)
-
-nmap <silent> <TAB> <Plug>(coc-range-select)
-xmap <silent> <TAB> <Plug>(coc-range-select)
-nnoremap <silent> <space>a  :<C-u>CocList diagnostics<cr>
-nnoremap <silent> <space>e  :<C-u>CocList extensions<cr>
-nnoremap <silent> <space>c  :<C-u>CocList commands<cr>
-nnoremap <silent> <space>o  :<C-u>CocList outline<cr>
-nnoremap <silent> <space>s  :<C-u>CocList -I symbols<cr>
-nnoremap <silent> <space>j  :<C-u>CocNext<CR>
-nnoremap <silent> <space>k  :<C-u>CocPrev<CR>
-nnoremap <silent> <space>p  :<C-u>CocListResume<CR>
diff --git a/.vimrc.plugins-settings b/.vimrc.plugins-settings
index 174f07fd..9c93ae08 100644
--- a/.vimrc.plugins-settings
+++ b/.vimrc.plugins-settings
@@ -21,22 +21,6 @@ let g:rainbow_active = 1
 set shortmess+=c
 set signcolumn=yes
 
-autocmd CursorHold * silent call CocActionAsync('highlight')
-
-augroup mygroup
-    autocmd!
-    " Setup formatexpr specified filetype(s).
-    autocmd FileType typescript,json setl formatexpr=CocAction('formatSelected')
-    " Update signature help on jump placeholder.
-    autocmd User CocJumpPlaceholder call CocActionAsync('showSignatureHelp')
-augroup end
-
-command! -nargs=0 Format :call CocAction('format')
-command! -nargs=? Fold :call     CocAction('fold', <f-args>)
-command! -nargs=0 OR   :call     CocAction('runCommand', 'editor.action.organizeImport')
-
-set statusline^=%{coc#status()}%{get(b:,'coc_current_function','')}
-
 " ack
 let g:ackprg = 'rg --vimgrep --smart-case'
 let g:ack_autoclose = 1