:call matchadd('ErrorMsg', 'TODO')
matchadd() lets you highlight arbitrary patterns using any highlight group — without touching the search register or search highlighting.
:checkhealth
Neovim ships with a built-in health framework that runs diagnostic checks for core components and installed plugins.
:set spelloptions=camel
By default, Vim treats camelCase as a single word and flags it as a spelling error even when both camel and case are correctly spelled.
augroup MyGroup | autocmd! | augroup END
Every time you run :source $MYVIMRC or :source % to reload your config, any bare autocmd calls are appended to Vim's autocommand table — no checking for dupli
:set wildignorecase
:set wildignorecase makes Vim's command-line tab completion treat uppercase and lowercase letters as equivalent when completing file names, buffer names, and ot
:set formatoptions+=j
Adding the j flag to formatoptions causes Vim to strip the comment leader from the second line when two comment lines are joined with J.
zi
Pressing zi in normal mode toggles the foldenable option, which controls whether folds are active in the current window.
:set completeopt=menuone,noselect
By default, Vim's and completion can auto-insert the first match, or only show a menu when there are multiple matches.
:set nrformats+=hex
By adding hex to the nrformats option, you tell Vim to recognise hexadecimal literals such as 0xFF or 0xDEAD when or is pressed.
:set diffopt+=algorithm:histogram
Switches Vim's diff algorithm from the default Myers algorithm to histogram, which produces more semantically meaningful diffs by avoiding false matches between
:set splitkeep=screen
Controls how Neovim preserves the visual position of content when creating, closing, or resizing horizontal splits.
:set wildoptions=fuzzy
Enables fuzzy matching for Neovim's command-line tab completion (wildmenu), so you can match any part of a filename, command, or option — not just from the be
command-line #completion #command-line #neovim #config #wildmenu
:set formatoptions-=cro
By default, Vim continues the current comment leader when you press in insert mode or open a new line with o/O.
:set formatoptions
The formatoptions setting is a string of single-character flags that governs Vim's automatic text formatting: when lines wrap, whether comment syntax continues
nnoremap <expr> j (v:count == 0 ? 'gj' : 'j')
The map modifier turns a mapping's right-hand side into a Vimscript expression that is evaluated at the time the key is pressed, with its return value used as t
:set wildignore+=*.pyc,*.o,node_modules/**,.git/**
wildignore is a comma-separated list of glob patterns that Vim skips when expanding file names.
:set equalprg=gofmt
By default, Vim's = operator re-indents text using its internal rules.
config #config #editing #ex-commands #formatting #indentation
:set splitright splitbelow
By default, :split opens a new window above the current one and :vsplit opens to the left — the opposite of most modern IDEs and editors.
set sidescrolloff
set sidescrolloff={n} keeps at least n columns of context to the left and right of the cursor when long lines cause the view to scroll horizontally.
:mksession
:mksession saves a snapshot of the current Vim session — all open buffers, window splits, tab pages, cursor positions, and folds — to a file called Session.
