How do I display a visual column showing fold depth and fold markers on the side of the buffer?
:set foldcolumn=3
The foldcolumn option adds a narrow column on the left side of the window that visually represents the fold structure of the file.
Tag: config
How do I inspect all syntax highlight groups stacked under the cursor to debug colorscheme or syntax issues?
:echo map(synstack(line('.'), col('.')), 'synIDattr(v:val, "name")')
When syntax highlighting looks wrong or a colorscheme override isn't taking effect, you need to know exactly which highlight groups are active under the cursor.
How do I make the Neovim jump list behave like a browser history stack instead of a ring?
:set jumpoptions=stack
By default Vim's jump list is a ring: if you press to go back several positions and then make a new jump, the list wraps around and future entries are preserved
How do I hide or replace the ~ characters that appear at the end of a buffer?
:set fillchars+=eob:
By default, Vim fills empty lines after the end of a buffer with ~ characters.
How do I enable a popup menu for command-line tab completion in Neovim?
:set wildoptions=pum
Setting wildoptions=pum tells Neovim to use its popup menu for command-line tab completion instead of the traditional horizontal wildmenu bar.
How do I enable inline character-level diff highlighting in Neovim's diff mode?
:set diffopt+=linematch:60
Neovim's linematch diffopt enables intra-line diff highlighting — instead of marking an entire changed line, Neovim highlights only the specific characters th
How do I create a mapping that runs an Ex command without switching modes or affecting the current state?
nnoremap <key> <Cmd>command<CR>
The special key (Vim 8.
config #config #macros #ex-commands #normal-mode #insert-mode
How do I prevent Vim's file completion and wildcard expansion from matching build artifacts or binary files?
:set wildignore
:set wildignore defines a comma-separated list of glob patterns that Vim excludes from wildcard expansion and file completion.
How do I programmatically inject keystrokes into Vim's input queue from a function or mapping?
feedkeys()
The feedkeys({keys}, {flags}) function inserts a string of keystrokes into Vim's input queue as if the user had typed them.
How do I prepend a value to the front of a comma-separated Vim option like path or runtimepath?
:set path^=./src
Vim's :set command supports three operators for modifying list-style options: += appends, -= removes, and ^= prepends.
How do I see exactly which highlight groups are responsible for the color of the character under the cursor in Neovim?
:Inspect
When customizing a colorscheme or debugging unexpected syntax colors, it's difficult to know which highlight group to override.
How do I make Vim's indent commands always align to a clean shiftwidth boundary?
:set shiftround
shiftround causes indent commands (>, always adds exactly shiftwidth spaces to whatever indentation the line already has With shiftround: > rounds up to the nex
How do I make Vim's search stop at the end of the file instead of wrapping back to the top?
:set nowrapscan
By default Vim's wrapscan option is enabled, which causes / and ? searches to wrap silently from the end of the file back to the beginning (and vice versa).
How do I set up filetype-specific documentation lookup for the K key in Vim?
:autocmd FileType python setlocal keywordprg=pydoc3
The K command looks up the word under the cursor using the program defined by keywordprg (default: man).
How do I trigger wildcard filename completion from inside a custom key mapping in Vim?
:set wildcharm=<C-z>
The wildchar option (default ) triggers wildcard completion interactively on the command line.
How do I speed up Vim when editing files with very long lines like minified code or CSV?
:set synmaxcol=200
The synmaxcol option tells Vim the maximum column up to which it will apply syntax highlighting on each line.
How do I add a per-window title bar in Neovim that shows context like the current filename?
:set winbar=%f
Neovim 0.
How do I permanently add a word to my personal spell file so Vim stops marking it as misspelled?
zg
When Vim's spell checker flags a technical term, proper noun, or project-specific identifier as misspelled, you can permanently silence it with zg ("mark as goo
How do I configure command-line Tab completion to show a list and complete the longest common match first?
:set wildmode=list:longest,full
Vim's default Tab completion in the command-line cycles through matches one at a time, making it hard to see all available options at once.
How do I configure Tab and Backspace to always move by a fixed number of spaces when using expandtab?
:set softtabstop=4
When expandtab is enabled, Vim inserts spaces instead of a real tab character, but without softtabstop, Backspace only deletes one space at a time — not a ful