added automated error handling if condition on <leader>ee for golang

vim/.vim/after/ftplugin/go.vim

@@ -7,3 +7,15 @@ let g:ale_linters = {
 
 " let g:ale_completion_enabled = 1
 
+" Map <Leader>ee to insert Go error handling if condition
+nnoremap <Leader>ee :call InsertGoErrorHandling()<CR>
+
+function! InsertGoErrorHandling()
+    let err_handling = "if err != nil { \r    return err \r}"
+
+    let save_cursor = getpos(".")
+    execute "normal! a" . err_handling
+    normal! jjj$
+    normal! $o
+    startinsert
+endfunction