Emacs: Lookup Function Documentation

By Xah Lee. Date: . Last updated: .
Alt+x describe-function
Show a function's inline doc. (commands are also functions.)

Note: Some Symbol are variable, not function, e.g. sentence-end-double-space. Some symbol are both function and variable. e.g. buffer-file-name.

Alt+x describe-command
Show a command's inline doc.

Like describe-function, but exclude functions that are not commands.

New in Emacs 29 (Released 2023-07)

emacs describe-function 2022-06-18
emacs describe-function 2022-06-18

Emacs Lisp Doc Lookup