disable plugin

init.vim

@@ -34,3 +34,22 @@ let g:lf_height = 0.7
 
 " Write all buffers before navigating from Vim to tmux pane
 let g:tmux_navigator_save_on_switch = 2
+
+" use <c-space>for trigger completion
+inoremap <silent><expr> <c-space> coc#refresh()
+" Use <C-@> on vim
+inoremap <silent><expr> <c-@> coc#refresh()
+
+" use <tab> for trigger completion and navigate to the next complete item
+function! CheckBackspace() abort
+  let col = col('.') - 1
+  return !col || getline('.')[col - 1]  =~# '\s'
+endfunction
+
+inoremap <silent><expr> <Tab>
+      \ coc#pum#visible() ? coc#pum#next(1) :
+      \ CheckBackspace() ? "\<Tab>" :
+      \ coc#refresh()
+
+inoremap <expr> <Tab> coc#pum#visible() ? coc#pum#next(1) : "\<Tab>"
+inoremap <expr> <S-Tab> coc#pum#visible() ? coc#pum#prev(1) : "\<S-Tab>"